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Commit 42c0c1c1 authored by Matthieu Schaller's avatar Matthieu Schaller
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Also update the AGN parameters in the EAGLE_ICs examples

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examples/EAGLE_ICs/EAGLE_100/eagle_100.yml
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...@@ -208,41 +208,43 @@ EAGLEFeedback: ...@@ -208,41 +208,43 @@ EAGLEFeedback:
# EAGLE AGN model # EAGLE AGN model
EAGLEAGN: EAGLEAGN:
subgrid_seed_mass_Msun: 1.0e4 # Black hole subgrid mass at creation time in solar masses. subgrid_seed_mass_Msun: 1.0e4 # Black hole subgrid mass at creation time in solar masses.
use_multi_phase_bondi: 0 # Compute Bondi rates per neighbour particle? use_multi_phase_bondi: 0 # Compute Bondi rates per neighbour particle?
use_subgrid_bondi: 0 # Compute Bondi rates using the subgrid extrapolation of the gas properties around the BH? use_subgrid_bondi: 0 # Compute Bondi rates using the subgrid extrapolation of the gas properties around the BH?
with_angmom_limiter: 0 # Are we applying the Rosas-Guevara et al. (2015) viscous time-scale reduction term? with_angmom_limiter: 0 # Are we applying the Rosas-Guevara et al. (2015) viscous time-scale reduction term?
viscous_alpha: 1e6 # Normalisation constant of the viscous time-scale in the accretion reduction term viscous_alpha: 1e6 # Normalisation constant of the viscous time-scale in the accretion reduction term
with_boost_factor: 0 # Are we using the model from Booth & Schaye (2009)? with_boost_factor: 0 # Are we using the model from Booth & Schaye (2009)?
boost_alpha: 1. # Lowest value for the accretion effeciency for the Booth & Schaye 2009 accretion model. boost_alpha: 1. # Lowest value for the accretion effeciency for the Booth & Schaye 2009 accretion model.
boost_beta: 2. # Slope of the power law for the Booth & Schaye 2009 model, set beta to zero for constant alpha models. boost_beta: 2. # Slope of the power law for the Booth & Schaye 2009 model, set beta to zero for constant alpha models.
boost_n_h_star_H_p_cm3: 0.1 # Normalization of the power law for the Booth & Schaye 2009 model in cgs (cm^-3). boost_n_h_star_H_p_cm3: 0.1 # Normalization of the power law for the Booth & Schaye 2009 model in cgs (cm^-3).
radiative_efficiency: 0.1 # Fraction of the accreted mass that gets radiated. radiative_efficiency: 0.1 # Fraction of the accreted mass that gets radiated.
use_nibbling: 1 # Continuously transfer small amounts of mass from all gas neighbours to a black hole [1] or stochastically swallow whole gas particles [0]? use_nibbling: 1 # Continuously transfer small amounts of mass from all gas neighbours to a black hole [1] or stochastically swallow whole gas particles [0]?
min_gas_mass_for_nibbling: 9e5 # Minimum mass for a gas particle to be nibbled from [M_Sun]. Only used if use_nibbling is 1. min_gas_mass_for_nibbling: 9e5 # Minimum mass for a gas particle to be nibbled from [M_Sun]. Only used if use_nibbling is 1.
max_eddington_fraction: 1. # Maximal allowed accretion rate in units of the Eddington rate. max_eddington_fraction: 1. # Maximal allowed accretion rate in units of the Eddington rate.
eddington_fraction_for_recording: 0.1 # Record the last time BHs reached an Eddington ratio above this threshold. eddington_fraction_for_recording: 0.1 # Record the last time BHs reached an Eddington ratio above this threshold.
coupling_efficiency: 0.1 # Fraction of the radiated energy that couples to the gas in feedback events. coupling_efficiency: 0.1 # Fraction of the radiated energy that couples to the gas in feedback events.
use_variable_delta_T: 1 # Switch to enable adaptive calculation of AGN dT [1], rather than using a constant value [0]. AGN_feedback_model: MinimumDistance # Feedback modes: Random, Isotropic, MinimumDistance, MinimumDensity
AGN_with_locally_adaptive_delta_T: 1 # Switch to enable additional dependence of AGN dT on local gas density and temperature (only used if use_variable_delta_T is 1). AGN_use_deterministic_feedback: 0 # Deterministic (reservoir) [1] or stochastic [0] AGN feedback?
AGN_delta_T_mass_norm: 3e8 # Normalisation temperature of AGN dT scaling with BH subgrid mass [K] (only used if use_variable_delta_T is 1). use_variable_delta_T: 1 # Switch to enable adaptive calculation of AGN dT [1], rather than using a constant value [0].
AGN_delta_T_mass_reference: 1e8 # BH subgrid mass at which the normalisation temperature set above applies [M_Sun] (only used if use_variable_delta_T is 1). AGN_with_locally_adaptive_delta_T: 1 # Switch to enable additional dependence of AGN dT on local gas density and temperature (only used if use_variable_delta_T is 1).
AGN_delta_T_mass_exponent: 0.666667 # Power-law index of AGN dT scaling with BH subgrid mass (only used if use_variable_delta_T is 1). AGN_delta_T_mass_norm: 3e8 # Normalisation temperature of AGN dT scaling with BH subgrid mass [K] (only used if use_variable_delta_T is 1).
AGN_delta_T_crit_factor: 1.0 # Multiple of critical dT for numerical efficiency (Dalla Vecchia & Schaye 2012) to use as dT floor (only used if use_variable_delta_T and AGN_with_locally_adaptive_delta_T are both 1). AGN_delta_T_mass_reference: 1e8 # BH subgrid mass at which the normalisation temperature set above applies [M_Sun] (only used if use_variable_delta_T is 1).
AGN_delta_T_background_factor: 0.0 # Multiple of local gas temperature to use as dT floor (only used if use_variable_delta_T and AGN_with_locally_adaptive_delta_T are both 1). AGN_delta_T_mass_exponent: 0.666667 # Power-law index of AGN dT scaling with BH subgrid mass (only used if use_variable_delta_T is 1).
AGN_delta_T_min: 1e7 # Minimum allowed value of AGN dT [K] (only used if use_variable_delta_T is 1). AGN_delta_T_crit_factor: 1.0 # Multiple of critical dT for numerical efficiency (Dalla Vecchia & Schaye 2012) to use as dT floor (only used if use_variable_delta_T and AGN_with_locally_adaptive_delta_T are both 1).
AGN_delta_T_max: 3e9 # Maximum allowed value of AGN dT [K] (only used if use_variable_delta_T is 1). AGN_delta_T_background_factor: 0.0 # Multiple of local gas temperature to use as dT floor (only used if use_variable_delta_T and AGN_with_locally_adaptive_delta_T are both 1).
AGN_delta_T_K: 3.16228e8 # Change in temperature to apply to the gas particle in an AGN feedback event [K] (used if use_variable_delta_T is 0 or AGN_use_nheat_with_fixed_dT is 1 AND to initialise the BHs). AGN_delta_T_min: 1e7 # Minimum allowed value of AGN dT [K] (only used if use_variable_delta_T is 1).
AGN_use_nheat_with_fixed_dT: 0 # Switch to use the constant AGN dT, rather than the adaptive one, for calculating the energy reservoir threshold. AGN_delta_T_max: 3e9 # Maximum allowed value of AGN dT [K] (only used if use_variable_delta_T is 1).
AGN_use_adaptive_energy_reservoir_threshold: 0 # Switch to calculate an adaptive AGN energy reservoir threshold. AGN_delta_T_K: 3.16228e8 # Change in temperature to apply to the gas particle in an AGN feedback event [K] (used if use_variable_delta_T is 0 or AGN_use_nheat_with_fixed_dT is 1 AND to initialise the BHs).
AGN_num_ngb_to_heat: 1. # Target number of gas neighbours to heat in an AGN feedback event (only used if AGN_use_adaptive_energy_reservoir_threshold is 0). AGN_use_nheat_with_fixed_dT: 0 # Switch to use the constant AGN dT, rather than the adaptive one, for calculating the energy reservoir threshold.
max_reposition_mass: 1e20 # Maximal BH mass considered for BH repositioning in solar masses (large number implies we always reposition). AGN_use_adaptive_energy_reservoir_threshold: 0 # Switch to calculate an adaptive AGN energy reservoir threshold.
max_reposition_distance_ratio: 3.0 # Maximal distance a BH can be repositioned, in units of the softening length. AGN_num_ngb_to_heat: 1. # Target number of gas neighbours to heat in an AGN feedback event (only used if AGN_use_adaptive_energy_reservoir_threshold is 0).
with_reposition_velocity_threshold: 0 # Should we only reposition to particles that move slowly w.r.t. the black hole? max_reposition_mass: 1e20 # Maximal BH mass considered for BH repositioning in solar masses (large number implies we always reposition).
max_reposition_velocity_ratio: 0.5 # Maximal velocity offset of a particle to reposition a BH to, in units of the ambient sound speed of the BH. Only meaningful if with_reposition_velocity_threshold is 1. max_reposition_distance_ratio: 3.0 # Maximal distance a BH can be repositioned, in units of the softening length.
min_reposition_velocity_threshold: -1.0 # Minimal value of the velocity threshold for repositioning [km/s], set to < 0 for no effect. Only meaningful if with_reposition_velocity_threshold is 1. with_reposition_velocity_threshold: 0 # Should we only reposition to particles that move slowly w.r.t. the black hole?
set_reposition_speed: 0 # Should we reposition black holes with (at most) a prescribed speed towards the potential minimum? max_reposition_velocity_ratio: 0.5 # Maximal velocity offset of a particle to reposition a BH to, in units of the ambient sound speed of the BH. Only meaningful if with_reposition_velocity_threshold is 1.
threshold_major_merger: 0.333 # Mass ratio threshold to consider a BH merger as 'major' min_reposition_velocity_threshold: -1.0 # Minimal value of the velocity threshold for repositioning [km/s], set to < 0 for no effect. Only meaningful if with_reposition_velocity_threshold is 1.
threshold_minor_merger: 0.1 # Mass ratio threshold to consider a BH merger as 'minor' set_reposition_speed: 0 # Should we reposition black holes with (at most) a prescribed speed towards the potential minimum?
merger_threshold_type: 2 # Type of velocity threshold for BH mergers (0: v_circ at kernel edge, 1: v_esc at actual distance, with softening, 2: v_esc at actual distance, no softening). threshold_major_merger: 0.333 # Mass ratio threshold to consider a BH merger as 'major'
merger_max_distance_ratio: 3.0 # Maximal distance over which two BHs can merge, in units of the softening length. threshold_minor_merger: 0.1 # Mass ratio threshold to consider a BH merger as 'minor'
merger_threshold_type: 2 # Type of velocity threshold for BH mergers (0: v_circ at kernel edge, 1: v_esc at actual distance, with softening, 2: v_esc at actual distance, no softening).
merger_max_distance_ratio: 3.0 # Maximal distance over which two BHs can merge, in units of the softening length.
examples/EAGLE_ICs/EAGLE_12/eagle_12.yml
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...@@ -207,41 +207,43 @@ EAGLEFeedback: ...@@ -207,41 +207,43 @@ EAGLEFeedback:
# EAGLE AGN model # EAGLE AGN model
EAGLEAGN: EAGLEAGN:
subgrid_seed_mass_Msun: 1.0e4 # Black hole subgrid mass at creation time in solar masses. subgrid_seed_mass_Msun: 1.0e4 # Black hole subgrid mass at creation time in solar masses.
use_multi_phase_bondi: 0 # Compute Bondi rates per neighbour particle? use_multi_phase_bondi: 0 # Compute Bondi rates per neighbour particle?
use_subgrid_bondi: 0 # Compute Bondi rates using the subgrid extrapolation of the gas properties around the BH? use_subgrid_bondi: 0 # Compute Bondi rates using the subgrid extrapolation of the gas properties around the BH?
with_angmom_limiter: 0 # Are we applying the Rosas-Guevara et al. (2015) viscous time-scale reduction term? with_angmom_limiter: 0 # Are we applying the Rosas-Guevara et al. (2015) viscous time-scale reduction term?
viscous_alpha: 1e6 # Normalisation constant of the viscous time-scale in the accretion reduction term viscous_alpha: 1e6 # Normalisation constant of the viscous time-scale in the accretion reduction term
with_boost_factor: 0 # Are we using the model from Booth & Schaye (2009)? with_boost_factor: 0 # Are we using the model from Booth & Schaye (2009)?
boost_alpha: 1. # Lowest value for the accretion effeciency for the Booth & Schaye 2009 accretion model. boost_alpha: 1. # Lowest value for the accretion effeciency for the Booth & Schaye 2009 accretion model.
boost_beta: 2. # Slope of the power law for the Booth & Schaye 2009 model, set beta to zero for constant alpha models. boost_beta: 2. # Slope of the power law for the Booth & Schaye 2009 model, set beta to zero for constant alpha models.
boost_n_h_star_H_p_cm3: 0.1 # Normalization of the power law for the Booth & Schaye 2009 model in cgs (cm^-3). boost_n_h_star_H_p_cm3: 0.1 # Normalization of the power law for the Booth & Schaye 2009 model in cgs (cm^-3).
radiative_efficiency: 0.1 # Fraction of the accreted mass that gets radiated. radiative_efficiency: 0.1 # Fraction of the accreted mass that gets radiated.
use_nibbling: 1 # Continuously transfer small amounts of mass from all gas neighbours to a black hole [1] or stochastically swallow whole gas particles [0]? use_nibbling: 1 # Continuously transfer small amounts of mass from all gas neighbours to a black hole [1] or stochastically swallow whole gas particles [0]?
min_gas_mass_for_nibbling: 9e5 # Minimum mass for a gas particle to be nibbled from [M_Sun]. Only used if use_nibbling is 1. min_gas_mass_for_nibbling: 9e5 # Minimum mass for a gas particle to be nibbled from [M_Sun]. Only used if use_nibbling is 1.
max_eddington_fraction: 1. # Maximal allowed accretion rate in units of the Eddington rate. max_eddington_fraction: 1. # Maximal allowed accretion rate in units of the Eddington rate.
eddington_fraction_for_recording: 0.1 # Record the last time BHs reached an Eddington ratio above this threshold. eddington_fraction_for_recording: 0.1 # Record the last time BHs reached an Eddington ratio above this threshold.
coupling_efficiency: 0.1 # Fraction of the radiated energy that couples to the gas in feedback events. coupling_efficiency: 0.1 # Fraction of the radiated energy that couples to the gas in feedback events.
use_variable_delta_T: 1 # Switch to enable adaptive calculation of AGN dT [1], rather than using a constant value [0]. AGN_feedback_model: MinimumDistance # Feedback modes: Random, Isotropic, MinimumDistance, MinimumDensity
AGN_with_locally_adaptive_delta_T: 1 # Switch to enable additional dependence of AGN dT on local gas density and temperature (only used if use_variable_delta_T is 1). AGN_use_deterministic_feedback: 0 # Deterministic (reservoir) [1] or stochastic [0] AGN feedback?
AGN_delta_T_mass_norm: 3e8 # Normalisation temperature of AGN dT scaling with BH subgrid mass [K] (only used if use_variable_delta_T is 1). use_variable_delta_T: 1 # Switch to enable adaptive calculation of AGN dT [1], rather than using a constant value [0].
AGN_delta_T_mass_reference: 1e8 # BH subgrid mass at which the normalisation temperature set above applies [M_Sun] (only used if use_variable_delta_T is 1). AGN_with_locally_adaptive_delta_T: 1 # Switch to enable additional dependence of AGN dT on local gas density and temperature (only used if use_variable_delta_T is 1).
AGN_delta_T_mass_exponent: 0.666667 # Power-law index of AGN dT scaling with BH subgrid mass (only used if use_variable_delta_T is 1). AGN_delta_T_mass_norm: 3e8 # Normalisation temperature of AGN dT scaling with BH subgrid mass [K] (only used if use_variable_delta_T is 1).
AGN_delta_T_crit_factor: 1.0 # Multiple of critical dT for numerical efficiency (Dalla Vecchia & Schaye 2012) to use as dT floor (only used if use_variable_delta_T and AGN_with_locally_adaptive_delta_T are both 1). AGN_delta_T_mass_reference: 1e8 # BH subgrid mass at which the normalisation temperature set above applies [M_Sun] (only used if use_variable_delta_T is 1).
AGN_delta_T_background_factor: 0.0 # Multiple of local gas temperature to use as dT floor (only used if use_variable_delta_T and AGN_with_locally_adaptive_delta_T are both 1). AGN_delta_T_mass_exponent: 0.666667 # Power-law index of AGN dT scaling with BH subgrid mass (only used if use_variable_delta_T is 1).
AGN_delta_T_min: 1e7 # Minimum allowed value of AGN dT [K] (only used if use_variable_delta_T is 1). AGN_delta_T_crit_factor: 1.0 # Multiple of critical dT for numerical efficiency (Dalla Vecchia & Schaye 2012) to use as dT floor (only used if use_variable_delta_T and AGN_with_locally_adaptive_delta_T are both 1).
AGN_delta_T_max: 3e9 # Maximum allowed value of AGN dT [K] (only used if use_variable_delta_T is 1). AGN_delta_T_background_factor: 0.0 # Multiple of local gas temperature to use as dT floor (only used if use_variable_delta_T and AGN_with_locally_adaptive_delta_T are both 1).
AGN_delta_T_K: 3.16228e8 # Change in temperature to apply to the gas particle in an AGN feedback event [K] (used if use_variable_delta_T is 0 or AGN_use_nheat_with_fixed_dT is 1 AND to initialise the BHs). AGN_delta_T_min: 1e7 # Minimum allowed value of AGN dT [K] (only used if use_variable_delta_T is 1).
AGN_use_nheat_with_fixed_dT: 0 # Switch to use the constant AGN dT, rather than the adaptive one, for calculating the energy reservoir threshold. AGN_delta_T_max: 3e9 # Maximum allowed value of AGN dT [K] (only used if use_variable_delta_T is 1).
AGN_use_adaptive_energy_reservoir_threshold: 0 # Switch to calculate an adaptive AGN energy reservoir threshold. AGN_delta_T_K: 3.16228e8 # Change in temperature to apply to the gas particle in an AGN feedback event [K] (used if use_variable_delta_T is 0 or AGN_use_nheat_with_fixed_dT is 1 AND to initialise the BHs).
AGN_num_ngb_to_heat: 1. # Target number of gas neighbours to heat in an AGN feedback event (only used if AGN_use_adaptive_energy_reservoir_threshold is 0). AGN_use_nheat_with_fixed_dT: 0 # Switch to use the constant AGN dT, rather than the adaptive one, for calculating the energy reservoir threshold.
max_reposition_mass: 1e20 # Maximal BH mass considered for BH repositioning in solar masses (large number implies we always reposition). AGN_use_adaptive_energy_reservoir_threshold: 0 # Switch to calculate an adaptive AGN energy reservoir threshold.
max_reposition_distance_ratio: 3.0 # Maximal distance a BH can be repositioned, in units of the softening length. AGN_num_ngb_to_heat: 1. # Target number of gas neighbours to heat in an AGN feedback event (only used if AGN_use_adaptive_energy_reservoir_threshold is 0).
with_reposition_velocity_threshold: 0 # Should we only reposition to particles that move slowly w.r.t. the black hole? max_reposition_mass: 1e20 # Maximal BH mass considered for BH repositioning in solar masses (large number implies we always reposition).
max_reposition_velocity_ratio: 0.5 # Maximal velocity offset of a particle to reposition a BH to, in units of the ambient sound speed of the BH. Only meaningful if with_reposition_velocity_threshold is 1. max_reposition_distance_ratio: 3.0 # Maximal distance a BH can be repositioned, in units of the softening length.
min_reposition_velocity_threshold: -1.0 # Minimal value of the velocity threshold for repositioning [km/s], set to < 0 for no effect. Only meaningful if with_reposition_velocity_threshold is 1. with_reposition_velocity_threshold: 0 # Should we only reposition to particles that move slowly w.r.t. the black hole?
set_reposition_speed: 0 # Should we reposition black holes with (at most) a prescribed speed towards the potential minimum? max_reposition_velocity_ratio: 0.5 # Maximal velocity offset of a particle to reposition a BH to, in units of the ambient sound speed of the BH. Only meaningful if with_reposition_velocity_threshold is 1.
threshold_major_merger: 0.333 # Mass ratio threshold to consider a BH merger as 'major' min_reposition_velocity_threshold: -1.0 # Minimal value of the velocity threshold for repositioning [km/s], set to < 0 for no effect. Only meaningful if with_reposition_velocity_threshold is 1.
threshold_minor_merger: 0.1 # Mass ratio threshold to consider a BH merger as 'minor' set_reposition_speed: 0 # Should we reposition black holes with (at most) a prescribed speed towards the potential minimum?
merger_threshold_type: 2 # Type of velocity threshold for BH mergers (0: v_circ at kernel edge, 1: v_esc at actual distance, with softening, 2: v_esc at actual distance, no softening). threshold_major_merger: 0.333 # Mass ratio threshold to consider a BH merger as 'major'
merger_max_distance_ratio: 3.0 # Maximal distance over which two BHs can merge, in units of the softening length. threshold_minor_merger: 0.1 # Mass ratio threshold to consider a BH merger as 'minor'
merger_threshold_type: 2 # Type of velocity threshold for BH mergers (0: v_circ at kernel edge, 1: v_esc at actual distance, with softening, 2: v_esc at actual distance, no softening).
merger_max_distance_ratio: 3.0 # Maximal distance over which two BHs can merge, in units of the softening length.
examples/EAGLE_ICs/EAGLE_25/eagle_25.yml
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...@@ -207,41 +207,43 @@ EAGLEFeedback: ...@@ -207,41 +207,43 @@ EAGLEFeedback:
# EAGLE AGN model # EAGLE AGN model
EAGLEAGN: EAGLEAGN:
subgrid_seed_mass_Msun: 1.0e4 # Black hole subgrid mass at creation time in solar masses. subgrid_seed_mass_Msun: 1.0e4 # Black hole subgrid mass at creation time in solar masses.
use_multi_phase_bondi: 0 # Compute Bondi rates per neighbour particle? use_multi_phase_bondi: 0 # Compute Bondi rates per neighbour particle?
use_subgrid_bondi: 0 # Compute Bondi rates using the subgrid extrapolation of the gas properties around the BH? use_subgrid_bondi: 0 # Compute Bondi rates using the subgrid extrapolation of the gas properties around the BH?
with_angmom_limiter: 0 # Are we applying the Rosas-Guevara et al. (2015) viscous time-scale reduction term? with_angmom_limiter: 0 # Are we applying the Rosas-Guevara et al. (2015) viscous time-scale reduction term?
viscous_alpha: 1e6 # Normalisation constant of the viscous time-scale in the accretion reduction term viscous_alpha: 1e6 # Normalisation constant of the viscous time-scale in the accretion reduction term
with_boost_factor: 0 # Are we using the model from Booth & Schaye (2009)? with_boost_factor: 0 # Are we using the model from Booth & Schaye (2009)?
boost_alpha: 1. # Lowest value for the accretion effeciency for the Booth & Schaye 2009 accretion model. boost_alpha: 1. # Lowest value for the accretion effeciency for the Booth & Schaye 2009 accretion model.
boost_beta: 2. # Slope of the power law for the Booth & Schaye 2009 model, set beta to zero for constant alpha models. boost_beta: 2. # Slope of the power law for the Booth & Schaye 2009 model, set beta to zero for constant alpha models.
boost_n_h_star_H_p_cm3: 0.1 # Normalization of the power law for the Booth & Schaye 2009 model in cgs (cm^-3). boost_n_h_star_H_p_cm3: 0.1 # Normalization of the power law for the Booth & Schaye 2009 model in cgs (cm^-3).
radiative_efficiency: 0.1 # Fraction of the accreted mass that gets radiated. radiative_efficiency: 0.1 # Fraction of the accreted mass that gets radiated.
use_nibbling: 1 # Continuously transfer small amounts of mass from all gas neighbours to a black hole [1] or stochastically swallow whole gas particles [0]? use_nibbling: 1 # Continuously transfer small amounts of mass from all gas neighbours to a black hole [1] or stochastically swallow whole gas particles [0]?
min_gas_mass_for_nibbling: 9e5 # Minimum mass for a gas particle to be nibbled from [M_Sun]. Only used if use_nibbling is 1. min_gas_mass_for_nibbling: 9e5 # Minimum mass for a gas particle to be nibbled from [M_Sun]. Only used if use_nibbling is 1.
max_eddington_fraction: 1. # Maximal allowed accretion rate in units of the Eddington rate. max_eddington_fraction: 1. # Maximal allowed accretion rate in units of the Eddington rate.
eddington_fraction_for_recording: 0.1 # Record the last time BHs reached an Eddington ratio above this threshold. eddington_fraction_for_recording: 0.1 # Record the last time BHs reached an Eddington ratio above this threshold.
coupling_efficiency: 0.1 # Fraction of the radiated energy that couples to the gas in feedback events. coupling_efficiency: 0.1 # Fraction of the radiated energy that couples to the gas in feedback events.
use_variable_delta_T: 1 # Switch to enable adaptive calculation of AGN dT [1], rather than using a constant value [0]. AGN_feedback_model: MinimumDistance # Feedback modes: Random, Isotropic, MinimumDistance, MinimumDensity
AGN_with_locally_adaptive_delta_T: 1 # Switch to enable additional dependence of AGN dT on local gas density and temperature (only used if use_variable_delta_T is 1). AGN_use_deterministic_feedback: 0 # Deterministic (reservoir) [1] or stochastic [0] AGN feedback?
AGN_delta_T_mass_norm: 3e8 # Normalisation temperature of AGN dT scaling with BH subgrid mass [K] (only used if use_variable_delta_T is 1). use_variable_delta_T: 1 # Switch to enable adaptive calculation of AGN dT [1], rather than using a constant value [0].
AGN_delta_T_mass_reference: 1e8 # BH subgrid mass at which the normalisation temperature set above applies [M_Sun] (only used if use_variable_delta_T is 1). AGN_with_locally_adaptive_delta_T: 1 # Switch to enable additional dependence of AGN dT on local gas density and temperature (only used if use_variable_delta_T is 1).
AGN_delta_T_mass_exponent: 0.666667 # Power-law index of AGN dT scaling with BH subgrid mass (only used if use_variable_delta_T is 1). AGN_delta_T_mass_norm: 3e8 # Normalisation temperature of AGN dT scaling with BH subgrid mass [K] (only used if use_variable_delta_T is 1).
AGN_delta_T_crit_factor: 1.0 # Multiple of critical dT for numerical efficiency (Dalla Vecchia & Schaye 2012) to use as dT floor (only used if use_variable_delta_T and AGN_with_locally_adaptive_delta_T are both 1). AGN_delta_T_mass_reference: 1e8 # BH subgrid mass at which the normalisation temperature set above applies [M_Sun] (only used if use_variable_delta_T is 1).
AGN_delta_T_background_factor: 0.0 # Multiple of local gas temperature to use as dT floor (only used if use_variable_delta_T and AGN_with_locally_adaptive_delta_T are both 1). AGN_delta_T_mass_exponent: 0.666667 # Power-law index of AGN dT scaling with BH subgrid mass (only used if use_variable_delta_T is 1).
AGN_delta_T_min: 1e7 # Minimum allowed value of AGN dT [K] (only used if use_variable_delta_T is 1). AGN_delta_T_crit_factor: 1.0 # Multiple of critical dT for numerical efficiency (Dalla Vecchia & Schaye 2012) to use as dT floor (only used if use_variable_delta_T and AGN_with_locally_adaptive_delta_T are both 1).
AGN_delta_T_max: 3e9 # Maximum allowed value of AGN dT [K] (only used if use_variable_delta_T is 1). AGN_delta_T_background_factor: 0.0 # Multiple of local gas temperature to use as dT floor (only used if use_variable_delta_T and AGN_with_locally_adaptive_delta_T are both 1).
AGN_delta_T_K: 3.16228e8 # Change in temperature to apply to the gas particle in an AGN feedback event [K] (used if use_variable_delta_T is 0 or AGN_use_nheat_with_fixed_dT is 1 AND to initialise the BHs). AGN_delta_T_min: 1e7 # Minimum allowed value of AGN dT [K] (only used if use_variable_delta_T is 1).
AGN_use_nheat_with_fixed_dT: 0 # Switch to use the constant AGN dT, rather than the adaptive one, for calculating the energy reservoir threshold. AGN_delta_T_max: 3e9 # Maximum allowed value of AGN dT [K] (only used if use_variable_delta_T is 1).
AGN_use_adaptive_energy_reservoir_threshold: 0 # Switch to calculate an adaptive AGN energy reservoir threshold. AGN_delta_T_K: 3.16228e8 # Change in temperature to apply to the gas particle in an AGN feedback event [K] (used if use_variable_delta_T is 0 or AGN_use_nheat_with_fixed_dT is 1 AND to initialise the BHs).
AGN_num_ngb_to_heat: 1. # Target number of gas neighbours to heat in an AGN feedback event (only used if AGN_use_adaptive_energy_reservoir_threshold is 0). AGN_use_nheat_with_fixed_dT: 0 # Switch to use the constant AGN dT, rather than the adaptive one, for calculating the energy reservoir threshold.
max_reposition_mass: 1e20 # Maximal BH mass considered for BH repositioning in solar masses (large number implies we always reposition). AGN_use_adaptive_energy_reservoir_threshold: 0 # Switch to calculate an adaptive AGN energy reservoir threshold.
max_reposition_distance_ratio: 3.0 # Maximal distance a BH can be repositioned, in units of the softening length. AGN_num_ngb_to_heat: 1. # Target number of gas neighbours to heat in an AGN feedback event (only used if AGN_use_adaptive_energy_reservoir_threshold is 0).
with_reposition_velocity_threshold: 0 # Should we only reposition to particles that move slowly w.r.t. the black hole? max_reposition_mass: 1e20 # Maximal BH mass considered for BH repositioning in solar masses (large number implies we always reposition).
max_reposition_velocity_ratio: 0.5 # Maximal velocity offset of a particle to reposition a BH to, in units of the ambient sound speed of the BH. Only meaningful if with_reposition_velocity_threshold is 1. max_reposition_distance_ratio: 3.0 # Maximal distance a BH can be repositioned, in units of the softening length.
min_reposition_velocity_threshold: -1.0 # Minimal value of the velocity threshold for repositioning [km/s], set to < 0 for no effect. Only meaningful if with_reposition_velocity_threshold is 1. with_reposition_velocity_threshold: 0 # Should we only reposition to particles that move slowly w.r.t. the black hole?
set_reposition_speed: 0 # Should we reposition black holes with (at most) a prescribed speed towards the potential minimum? max_reposition_velocity_ratio: 0.5 # Maximal velocity offset of a particle to reposition a BH to, in units of the ambient sound speed of the BH. Only meaningful if with_reposition_velocity_threshold is 1.
threshold_major_merger: 0.333 # Mass ratio threshold to consider a BH merger as 'major' min_reposition_velocity_threshold: -1.0 # Minimal value of the velocity threshold for repositioning [km/s], set to < 0 for no effect. Only meaningful if with_reposition_velocity_threshold is 1.
threshold_minor_merger: 0.1 # Mass ratio threshold to consider a BH merger as 'minor' set_reposition_speed: 0 # Should we reposition black holes with (at most) a prescribed speed towards the potential minimum?
merger_threshold_type: 2 # Type of velocity threshold for BH mergers (0: v_circ at kernel edge, 1: v_esc at actual distance, with softening, 2: v_esc at actual distance, no softening). threshold_major_merger: 0.333 # Mass ratio threshold to consider a BH merger as 'major'
merger_max_distance_ratio: 3.0 # Maximal distance over which two BHs can merge, in units of the softening length. threshold_minor_merger: 0.1 # Mass ratio threshold to consider a BH merger as 'minor'
merger_threshold_type: 2 # Type of velocity threshold for BH mergers (0: v_circ at kernel edge, 1: v_esc at actual distance, with softening, 2: v_esc at actual distance, no softening).
merger_max_distance_ratio: 3.0 # Maximal distance over which two BHs can merge, in units of the softening length.
examples/EAGLE_ICs/EAGLE_50/eagle_50.yml
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...@@ -205,41 +205,43 @@ EAGLEFeedback: ...@@ -205,41 +205,43 @@ EAGLEFeedback:
# EAGLE AGN model # EAGLE AGN model
EAGLEAGN: EAGLEAGN:
subgrid_seed_mass_Msun: 1.0e4 # Black hole subgrid mass at creation time in solar masses. subgrid_seed_mass_Msun: 1.0e4 # Black hole subgrid mass at creation time in solar masses.
use_multi_phase_bondi: 0 # Compute Bondi rates per neighbour particle? use_multi_phase_bondi: 0 # Compute Bondi rates per neighbour particle?
use_subgrid_bondi: 0 # Compute Bondi rates using the subgrid extrapolation of the gas properties around the BH? use_subgrid_bondi: 0 # Compute Bondi rates using the subgrid extrapolation of the gas properties around the BH?
with_angmom_limiter: 0 # Are we applying the Rosas-Guevara et al. (2015) viscous time-scale reduction term? with_angmom_limiter: 0 # Are we applying the Rosas-Guevara et al. (2015) viscous time-scale reduction term?
viscous_alpha: 1e6 # Normalisation constant of the viscous time-scale in the accretion reduction term viscous_alpha: 1e6 # Normalisation constant of the viscous time-scale in the accretion reduction term
with_boost_factor: 0 # Are we using the model from Booth & Schaye (2009)? with_boost_factor: 0 # Are we using the model from Booth & Schaye (2009)?
boost_alpha: 1. # Lowest value for the accretion effeciency for the Booth & Schaye 2009 accretion model. boost_alpha: 1. # Lowest value for the accretion effeciency for the Booth & Schaye 2009 accretion model.
boost_beta: 2. # Slope of the power law for the Booth & Schaye 2009 model, set beta to zero for constant alpha models. boost_beta: 2. # Slope of the power law for the Booth & Schaye 2009 model, set beta to zero for constant alpha models.
boost_n_h_star_H_p_cm3: 0.1 # Normalization of the power law for the Booth & Schaye 2009 model in cgs (cm^-3). boost_n_h_star_H_p_cm3: 0.1 # Normalization of the power law for the Booth & Schaye 2009 model in cgs (cm^-3).
radiative_efficiency: 0.1 # Fraction of the accreted mass that gets radiated. radiative_efficiency: 0.1 # Fraction of the accreted mass that gets radiated.
use_nibbling: 1 # Continuously transfer small amounts of mass from all gas neighbours to a black hole [1] or stochastically swallow whole gas particles [0]? use_nibbling: 1 # Continuously transfer small amounts of mass from all gas neighbours to a black hole [1] or stochastically swallow whole gas particles [0]?
min_gas_mass_for_nibbling: 9e5 # Minimum mass for a gas particle to be nibbled from [M_Sun]. Only used if use_nibbling is 1. min_gas_mass_for_nibbling: 9e5 # Minimum mass for a gas particle to be nibbled from [M_Sun]. Only used if use_nibbling is 1.
max_eddington_fraction: 1. # Maximal allowed accretion rate in units of the Eddington rate. max_eddington_fraction: 1. # Maximal allowed accretion rate in units of the Eddington rate.
eddington_fraction_for_recording: 0.1 # Record the last time BHs reached an Eddington ratio above this threshold. eddington_fraction_for_recording: 0.1 # Record the last time BHs reached an Eddington ratio above this threshold.
coupling_efficiency: 0.1 # Fraction of the radiated energy that couples to the gas in feedback events. coupling_efficiency: 0.1 # Fraction of the radiated energy that couples to the gas in feedback events.
use_variable_delta_T: 1 # Switch to enable adaptive calculation of AGN dT [1], rather than using a constant value [0]. AGN_feedback_model: MinimumDistance # Feedback modes: Random, Isotropic, MinimumDistance, MinimumDensity
AGN_with_locally_adaptive_delta_T: 1 # Switch to enable additional dependence of AGN dT on local gas density and temperature (only used if use_variable_delta_T is 1). AGN_use_deterministic_feedback: 0 # Deterministic (reservoir) [1] or stochastic [0] AGN feedback?
AGN_delta_T_mass_norm: 3e8 # Normalisation temperature of AGN dT scaling with BH subgrid mass [K] (only used if use_variable_delta_T is 1). use_variable_delta_T: 1 # Switch to enable adaptive calculation of AGN dT [1], rather than using a constant value [0].
AGN_delta_T_mass_reference: 1e8 # BH subgrid mass at which the normalisation temperature set above applies [M_Sun] (only used if use_variable_delta_T is 1). AGN_with_locally_adaptive_delta_T: 1 # Switch to enable additional dependence of AGN dT on local gas density and temperature (only used if use_variable_delta_T is 1).
AGN_delta_T_mass_exponent: 0.666667 # Power-law index of AGN dT scaling with BH subgrid mass (only used if use_variable_delta_T is 1). AGN_delta_T_mass_norm: 3e8 # Normalisation temperature of AGN dT scaling with BH subgrid mass [K] (only used if use_variable_delta_T is 1).
AGN_delta_T_crit_factor: 1.0 # Multiple of critical dT for numerical efficiency (Dalla Vecchia & Schaye 2012) to use as dT floor (only used if use_variable_delta_T and AGN_with_locally_adaptive_delta_T are both 1). AGN_delta_T_mass_reference: 1e8 # BH subgrid mass at which the normalisation temperature set above applies [M_Sun] (only used if use_variable_delta_T is 1).
AGN_delta_T_background_factor: 0.0 # Multiple of local gas temperature to use as dT floor (only used if use_variable_delta_T and AGN_with_locally_adaptive_delta_T are both 1). AGN_delta_T_mass_exponent: 0.666667 # Power-law index of AGN dT scaling with BH subgrid mass (only used if use_variable_delta_T is 1).
AGN_delta_T_min: 1e7 # Minimum allowed value of AGN dT [K] (only used if use_variable_delta_T is 1). AGN_delta_T_crit_factor: 1.0 # Multiple of critical dT for numerical efficiency (Dalla Vecchia & Schaye 2012) to use as dT floor (only used if use_variable_delta_T and AGN_with_locally_adaptive_delta_T are both 1).
AGN_delta_T_max: 3e9 # Maximum allowed value of AGN dT [K] (only used if use_variable_delta_T is 1). AGN_delta_T_background_factor: 0.0 # Multiple of local gas temperature to use as dT floor (only used if use_variable_delta_T and AGN_with_locally_adaptive_delta_T are both 1).
AGN_delta_T_K: 3.16228e8 # Change in temperature to apply to the gas particle in an AGN feedback event [K] (used if use_variable_delta_T is 0 or AGN_use_nheat_with_fixed_dT is 1 AND to initialise the BHs). AGN_delta_T_min: 1e7 # Minimum allowed value of AGN dT [K] (only used if use_variable_delta_T is 1).
AGN_use_nheat_with_fixed_dT: 0 # Switch to use the constant AGN dT, rather than the adaptive one, for calculating the energy reservoir threshold. AGN_delta_T_max: 3e9 # Maximum allowed value of AGN dT [K] (only used if use_variable_delta_T is 1).
AGN_use_adaptive_energy_reservoir_threshold: 0 # Switch to calculate an adaptive AGN energy reservoir threshold. AGN_delta_T_K: 3.16228e8 # Change in temperature to apply to the gas particle in an AGN feedback event [K] (used if use_variable_delta_T is 0 or AGN_use_nheat_with_fixed_dT is 1 AND to initialise the BHs).
AGN_num_ngb_to_heat: 1. # Target number of gas neighbours to heat in an AGN feedback event (only used if AGN_use_adaptive_energy_reservoir_threshold is 0). AGN_use_nheat_with_fixed_dT: 0 # Switch to use the constant AGN dT, rather than the adaptive one, for calculating the energy reservoir threshold.
max_reposition_mass: 1e20 # Maximal BH mass considered for BH repositioning in solar masses (large number implies we always reposition). AGN_use_adaptive_energy_reservoir_threshold: 0 # Switch to calculate an adaptive AGN energy reservoir threshold.
max_reposition_distance_ratio: 3.0 # Maximal distance a BH can be repositioned, in units of the softening length. AGN_num_ngb_to_heat: 1. # Target number of gas neighbours to heat in an AGN feedback event (only used if AGN_use_adaptive_energy_reservoir_threshold is 0).
with_reposition_velocity_threshold: 0 # Should we only reposition to particles that move slowly w.r.t. the black hole? max_reposition_mass: 1e20 # Maximal BH mass considered for BH repositioning in solar masses (large number implies we always reposition).
max_reposition_velocity_ratio: 0.5 # Maximal velocity offset of a particle to reposition a BH to, in units of the ambient sound speed of the BH. Only meaningful if with_reposition_velocity_threshold is 1. max_reposition_distance_ratio: 3.0 # Maximal distance a BH can be repositioned, in units of the softening length.
min_reposition_velocity_threshold: -1.0 # Minimal value of the velocity threshold for repositioning [km/s], set to < 0 for no effect. Only meaningful if with_reposition_velocity_threshold is 1. with_reposition_velocity_threshold: 0 # Should we only reposition to particles that move slowly w.r.t. the black hole?
set_reposition_speed: 0 # Should we reposition black holes with (at most) a prescribed speed towards the potential minimum? max_reposition_velocity_ratio: 0.5 # Maximal velocity offset of a particle to reposition a BH to, in units of the ambient sound speed of the BH. Only meaningful if with_reposition_velocity_threshold is 1.
threshold_major_merger: 0.333 # Mass ratio threshold to consider a BH merger as 'major' min_reposition_velocity_threshold: -1.0 # Minimal value of the velocity threshold for repositioning [km/s], set to < 0 for no effect. Only meaningful if with_reposition_velocity_threshold is 1.
threshold_minor_merger: 0.1 # Mass ratio threshold to consider a BH merger as 'minor' set_reposition_speed: 0 # Should we reposition black holes with (at most) a prescribed speed towards the potential minimum?
merger_threshold_type: 2 # Type of velocity threshold for BH mergers (0: v_circ at kernel edge, 1: v_esc at actual distance, with softening, 2: v_esc at actual distance, no softening). threshold_major_merger: 0.333 # Mass ratio threshold to consider a BH merger as 'major'
merger_max_distance_ratio: 3.0 # Maximal distance over which two BHs can merge, in units of the softening length. threshold_minor_merger: 0.1 # Mass ratio threshold to consider a BH merger as 'minor'
merger_threshold_type: 2 # Type of velocity threshold for BH mergers (0: v_circ at kernel edge, 1: v_esc at actual distance, with softening, 2: v_esc at actual distance, no softening).
merger_max_distance_ratio: 3.0 # Maximal distance over which two BHs can merge, in units of the softening length.
examples/EAGLE_ICs/EAGLE_50_low_res/eagle_50.yml
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...@@ -204,41 +204,43 @@ EAGLEFeedback: ...@@ -204,41 +204,43 @@ EAGLEFeedback:
# EAGLE AGN model # EAGLE AGN model
EAGLEAGN: EAGLEAGN:
subgrid_seed_mass_Msun: 1.0e4 # Black hole subgrid mass at creation time in solar masses. subgrid_seed_mass_Msun: 1.0e4 # Black hole subgrid mass at creation time in solar masses.
use_multi_phase_bondi: 0 # Compute Bondi rates per neighbour particle? use_multi_phase_bondi: 0 # Compute Bondi rates per neighbour particle?
use_subgrid_bondi: 0 # Compute Bondi rates using the subgrid extrapolation of the gas properties around the BH? use_subgrid_bondi: 0 # Compute Bondi rates using the subgrid extrapolation of the gas properties around the BH?
with_angmom_limiter: 0 # Are we applying the Rosas-Guevara et al. (2015) viscous time-scale reduction term? with_angmom_limiter: 0 # Are we applying the Rosas-Guevara et al. (2015) viscous time-scale reduction term?
viscous_alpha: 1e6 # Normalisation constant of the viscous time-scale in the accretion reduction term viscous_alpha: 1e6 # Normalisation constant of the viscous time-scale in the accretion reduction term
with_boost_factor: 0 # Are we using the model from Booth & Schaye (2009)? with_boost_factor: 0 # Are we using the model from Booth & Schaye (2009)?
boost_alpha: 1. # Lowest value for the accretion effeciency for the Booth & Schaye 2009 accretion model. boost_alpha: 1. # Lowest value for the accretion effeciency for the Booth & Schaye 2009 accretion model.
boost_beta: 2. # Slope of the power law for the Booth & Schaye 2009 model, set beta to zero for constant alpha models. boost_beta: 2. # Slope of the power law for the Booth & Schaye 2009 model, set beta to zero for constant alpha models.
boost_n_h_star_H_p_cm3: 0.1 # Normalization of the power law for the Booth & Schaye 2009 model in cgs (cm^-3). boost_n_h_star_H_p_cm3: 0.1 # Normalization of the power law for the Booth & Schaye 2009 model in cgs (cm^-3).
radiative_efficiency: 0.1 # Fraction of the accreted mass that gets radiated. radiative_efficiency: 0.1 # Fraction of the accreted mass that gets radiated.
use_nibbling: 1 # Continuously transfer small amounts of mass from all gas neighbours to a black hole [1] or stochastically swallow whole gas particles [0]? use_nibbling: 1 # Continuously transfer small amounts of mass from all gas neighbours to a black hole [1] or stochastically swallow whole gas particles [0]?
min_gas_mass_for_nibbling: 7.2e6 # Minimum mass for a gas particle to be nibbled from [M_Sun]. Only used if use_nibbling is 1. min_gas_mass_for_nibbling: 9e5 # Minimum mass for a gas particle to be nibbled from [M_Sun]. Only used if use_nibbling is 1.
max_eddington_fraction: 1. # Maximal allowed accretion rate in units of the Eddington rate. max_eddington_fraction: 1. # Maximal allowed accretion rate in units of the Eddington rate.
eddington_fraction_for_recording: 0.1 # Record the last time BHs reached an Eddington ratio above this threshold. eddington_fraction_for_recording: 0.1 # Record the last time BHs reached an Eddington ratio above this threshold.
coupling_efficiency: 0.1 # Fraction of the radiated energy that couples to the gas in feedback events. coupling_efficiency: 0.1 # Fraction of the radiated energy that couples to the gas in feedback events.
use_variable_delta_T: 1 # Switch to enable adaptive calculation of AGN dT [1], rather than using a constant value [0]. AGN_feedback_model: MinimumDistance # Feedback modes: Random, Isotropic, MinimumDistance, MinimumDensity
AGN_with_locally_adaptive_delta_T: 1 # Switch to enable additional dependence of AGN dT on local gas density and temperature (only used if use_variable_delta_T is 1). AGN_use_deterministic_feedback: 0 # Deterministic (reservoir) [1] or stochastic [0] AGN feedback?
AGN_delta_T_mass_norm: 3e8 # Normalisation temperature of AGN dT scaling with BH subgrid mass [K] (only used if use_variable_delta_T is 1). use_variable_delta_T: 1 # Switch to enable adaptive calculation of AGN dT [1], rather than using a constant value [0].
AGN_delta_T_mass_reference: 1e8 # BH subgrid mass at which the normalisation temperature set above applies [M_Sun] (only used if use_variable_delta_T is 1). AGN_with_locally_adaptive_delta_T: 1 # Switch to enable additional dependence of AGN dT on local gas density and temperature (only used if use_variable_delta_T is 1).
AGN_delta_T_mass_exponent: 0.666667 # Power-law index of AGN dT scaling with BH subgrid mass (only used if use_variable_delta_T is 1). AGN_delta_T_mass_norm: 3e8 # Normalisation temperature of AGN dT scaling with BH subgrid mass [K] (only used if use_variable_delta_T is 1).
AGN_delta_T_crit_factor: 1.0 # Multiple of critical dT for numerical efficiency (Dalla Vecchia & Schaye 2012) to use as dT floor (only used if use_variable_delta_T and AGN_with_locally_adaptive_delta_T are both 1). AGN_delta_T_mass_reference: 1e8 # BH subgrid mass at which the normalisation temperature set above applies [M_Sun] (only used if use_variable_delta_T is 1).
AGN_delta_T_background_factor: 0.0 # Multiple of local gas temperature to use as dT floor (only used if use_variable_delta_T and AGN_with_locally_adaptive_delta_T are both 1). AGN_delta_T_mass_exponent: 0.666667 # Power-law index of AGN dT scaling with BH subgrid mass (only used if use_variable_delta_T is 1).
AGN_delta_T_min: 1e7 # Minimum allowed value of AGN dT [K] (only used if use_variable_delta_T is 1). AGN_delta_T_crit_factor: 1.0 # Multiple of critical dT for numerical efficiency (Dalla Vecchia & Schaye 2012) to use as dT floor (only used if use_variable_delta_T and AGN_with_locally_adaptive_delta_T are both 1).
AGN_delta_T_max: 3e9 # Maximum allowed value of AGN dT [K] (only used if use_variable_delta_T is 1). AGN_delta_T_background_factor: 0.0 # Multiple of local gas temperature to use as dT floor (only used if use_variable_delta_T and AGN_with_locally_adaptive_delta_T are both 1).
AGN_delta_T_K: 3.16228e8 # Change in temperature to apply to the gas particle in an AGN feedback event [K] (used if use_variable_delta_T is 0 or AGN_use_nheat_with_fixed_dT is 1 AND to initialise the BHs). AGN_delta_T_min: 1e7 # Minimum allowed value of AGN dT [K] (only used if use_variable_delta_T is 1).
AGN_use_nheat_with_fixed_dT: 0 # Switch to use the constant AGN dT, rather than the adaptive one, for calculating the energy reservoir threshold. AGN_delta_T_max: 3e9 # Maximum allowed value of AGN dT [K] (only used if use_variable_delta_T is 1).
AGN_use_adaptive_energy_reservoir_threshold: 0 # Switch to calculate an adaptive AGN energy reservoir threshold. AGN_delta_T_K: 3.16228e8 # Change in temperature to apply to the gas particle in an AGN feedback event [K] (used if use_variable_delta_T is 0 or AGN_use_nheat_with_fixed_dT is 1 AND to initialise the BHs).
AGN_num_ngb_to_heat: 1. # Target number of gas neighbours to heat in an AGN feedback event (only used if AGN_use_adaptive_energy_reservoir_threshold is 0). AGN_use_nheat_with_fixed_dT: 0 # Switch to use the constant AGN dT, rather than the adaptive one, for calculating the energy reservoir threshold.
max_reposition_mass: 1e20 # Maximal BH mass considered for BH repositioning in solar masses (large number implies we always reposition). AGN_use_adaptive_energy_reservoir_threshold: 0 # Switch to calculate an adaptive AGN energy reservoir threshold.
max_reposition_distance_ratio: 3.0 # Maximal distance a BH can be repositioned, in units of the softening length. AGN_num_ngb_to_heat: 1. # Target number of gas neighbours to heat in an AGN feedback event (only used if AGN_use_adaptive_energy_reservoir_threshold is 0).
with_reposition_velocity_threshold: 0 # Should we only reposition to particles that move slowly w.r.t. the black hole? max_reposition_mass: 1e20 # Maximal BH mass considered for BH repositioning in solar masses (large number implies we always reposition).
max_reposition_velocity_ratio: 0.5 # Maximal velocity offset of a particle to reposition a BH to, in units of the ambient sound speed of the BH. Only meaningful if with_reposition_velocity_threshold is 1. max_reposition_distance_ratio: 3.0 # Maximal distance a BH can be repositioned, in units of the softening length.
min_reposition_velocity_threshold: -1.0 # Minimal value of the velocity threshold for repositioning [km/s], set to < 0 for no effect. Only meaningful if with_reposition_velocity_threshold is 1. with_reposition_velocity_threshold: 0 # Should we only reposition to particles that move slowly w.r.t. the black hole?
set_reposition_speed: 0 # Should we reposition black holes with (at most) a prescribed speed towards the potential minimum? max_reposition_velocity_ratio: 0.5 # Maximal velocity offset of a particle to reposition a BH to, in units of the ambient sound speed of the BH. Only meaningful if with_reposition_velocity_threshold is 1.
threshold_major_merger: 0.333 # Mass ratio threshold to consider a BH merger as 'major' min_reposition_velocity_threshold: -1.0 # Minimal value of the velocity threshold for repositioning [km/s], set to < 0 for no effect. Only meaningful if with_reposition_velocity_threshold is 1.
threshold_minor_merger: 0.1 # Mass ratio threshold to consider a BH merger as 'minor' set_reposition_speed: 0 # Should we reposition black holes with (at most) a prescribed speed towards the potential minimum?
merger_threshold_type: 2 # Type of velocity threshold for BH mergers (0: v_circ at kernel edge, 1: v_esc at actual distance, with softening, 2: v_esc at actual distance, no softening). threshold_major_merger: 0.333 # Mass ratio threshold to consider a BH merger as 'major'
merger_max_distance_ratio: 3.0 # Maximal distance over which two BHs can merge, in units of the softening length. threshold_minor_merger: 0.1 # Mass ratio threshold to consider a BH merger as 'minor'
merger_threshold_type: 2 # Type of velocity threshold for BH mergers (0: v_circ at kernel edge, 1: v_esc at actual distance, with softening, 2: v_esc at actual distance, no softening).
merger_max_distance_ratio: 3.0 # Maximal distance over which two BHs can merge, in units of the softening length.
examples/EAGLE_ICs/EAGLE_6/eagle_6.yml
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...@@ -207,41 +207,43 @@ EAGLEFeedback: ...@@ -207,41 +207,43 @@ EAGLEFeedback:
# EAGLE AGN model # EAGLE AGN model
EAGLEAGN: EAGLEAGN:
subgrid_seed_mass_Msun: 1.0e4 # Black hole subgrid mass at creation time in solar masses. subgrid_seed_mass_Msun: 1.0e4 # Black hole subgrid mass at creation time in solar masses.
use_multi_phase_bondi: 0 # Compute Bondi rates per neighbour particle? use_multi_phase_bondi: 0 # Compute Bondi rates per neighbour particle?
use_subgrid_bondi: 0 # Compute Bondi rates using the subgrid extrapolation of the gas properties around the BH? use_subgrid_bondi: 0 # Compute Bondi rates using the subgrid extrapolation of the gas properties around the BH?
with_angmom_limiter: 0 # Are we applying the Rosas-Guevara et al. (2015) viscous time-scale reduction term? with_angmom_limiter: 0 # Are we applying the Rosas-Guevara et al. (2015) viscous time-scale reduction term?
viscous_alpha: 1e6 # Normalisation constant of the viscous time-scale in the accretion reduction term viscous_alpha: 1e6 # Normalisation constant of the viscous time-scale in the accretion reduction term
with_boost_factor: 0 # Are we using the model from Booth & Schaye (2009)? with_boost_factor: 0 # Are we using the model from Booth & Schaye (2009)?
boost_alpha: 1. # Lowest value for the accretion effeciency for the Booth & Schaye 2009 accretion model. boost_alpha: 1. # Lowest value for the accretion effeciency for the Booth & Schaye 2009 accretion model.
boost_beta: 2. # Slope of the power law for the Booth & Schaye 2009 model, set beta to zero for constant alpha models. boost_beta: 2. # Slope of the power law for the Booth & Schaye 2009 model, set beta to zero for constant alpha models.
boost_n_h_star_H_p_cm3: 0.1 # Normalization of the power law for the Booth & Schaye 2009 model in cgs (cm^-3). boost_n_h_star_H_p_cm3: 0.1 # Normalization of the power law for the Booth & Schaye 2009 model in cgs (cm^-3).
use_nibbling: 1 # Continuously transfer small amounts of mass from all gas neighbours to a black hole [1] or stochastically swallow whole gas particles [0]? radiative_efficiency: 0.1 # Fraction of the accreted mass that gets radiated.
min_gas_mass_for_nibbling: 9e5 # Minimum mass for a gas particle to be nibbled from [M_Sun]. Only used if use_nibbling is 1. use_nibbling: 1 # Continuously transfer small amounts of mass from all gas neighbours to a black hole [1] or stochastically swallow whole gas particles [0]?
radiative_efficiency: 0.1 # Fraction of the accreted mass that gets radiated. min_gas_mass_for_nibbling: 9e5 # Minimum mass for a gas particle to be nibbled from [M_Sun]. Only used if use_nibbling is 1.
max_eddington_fraction: 1. # Maximal allowed accretion rate in units of the Eddington rate. max_eddington_fraction: 1. # Maximal allowed accretion rate in units of the Eddington rate.
eddington_fraction_for_recording: 0.1 # Record the last time BHs reached an Eddington ratio above this threshold. eddington_fraction_for_recording: 0.1 # Record the last time BHs reached an Eddington ratio above this threshold.
coupling_efficiency: 0.1 # Fraction of the radiated energy that couples to the gas in feedback events. coupling_efficiency: 0.1 # Fraction of the radiated energy that couples to the gas in feedback events.
use_variable_delta_T: 1 # Switch to enable adaptive calculation of AGN dT [1], rather than using a constant value [0]. AGN_feedback_model: MinimumDistance # Feedback modes: Random, Isotropic, MinimumDistance, MinimumDensity
AGN_with_locally_adaptive_delta_T: 1 # Switch to enable additional dependence of AGN dT on local gas density and temperature (only used if use_variable_delta_T is 1). AGN_use_deterministic_feedback: 0 # Deterministic (reservoir) [1] or stochastic [0] AGN feedback?
AGN_delta_T_mass_norm: 3e8 # Normalisation temperature of AGN dT scaling with BH subgrid mass [K] (only used if use_variable_delta_T is 1). use_variable_delta_T: 1 # Switch to enable adaptive calculation of AGN dT [1], rather than using a constant value [0].
AGN_delta_T_mass_reference: 1e8 # BH subgrid mass at which the normalisation temperature set above applies [M_Sun] (only used if use_variable_delta_T is 1). AGN_with_locally_adaptive_delta_T: 1 # Switch to enable additional dependence of AGN dT on local gas density and temperature (only used if use_variable_delta_T is 1).
AGN_delta_T_mass_exponent: 0.666667 # Power-law index of AGN dT scaling with BH subgrid mass (only used if use_variable_delta_T is 1). AGN_delta_T_mass_norm: 3e8 # Normalisation temperature of AGN dT scaling with BH subgrid mass [K] (only used if use_variable_delta_T is 1).
AGN_delta_T_crit_factor: 1.0 # Multiple of critical dT for numerical efficiency (Dalla Vecchia & Schaye 2012) to use as dT floor (only used if use_variable_delta_T and AGN_with_locally_adaptive_delta_T are both 1). AGN_delta_T_mass_reference: 1e8 # BH subgrid mass at which the normalisation temperature set above applies [M_Sun] (only used if use_variable_delta_T is 1).
AGN_delta_T_background_factor: 0.0 # Multiple of local gas temperature to use as dT floor (only used if use_variable_delta_T and AGN_with_locally_adaptive_delta_T are both 1). AGN_delta_T_mass_exponent: 0.666667 # Power-law index of AGN dT scaling with BH subgrid mass (only used if use_variable_delta_T is 1).
AGN_delta_T_min: 1e7 # Minimum allowed value of AGN dT [K] (only used if use_variable_delta_T is 1). AGN_delta_T_crit_factor: 1.0 # Multiple of critical dT for numerical efficiency (Dalla Vecchia & Schaye 2012) to use as dT floor (only used if use_variable_delta_T and AGN_with_locally_adaptive_delta_T are both 1).
AGN_delta_T_max: 3e9 # Maximum allowed value of AGN dT [K] (only used if use_variable_delta_T is 1). AGN_delta_T_background_factor: 0.0 # Multiple of local gas temperature to use as dT floor (only used if use_variable_delta_T and AGN_with_locally_adaptive_delta_T are both 1).
AGN_delta_T_K: 3.16228e8 # Change in temperature to apply to the gas particle in an AGN feedback event [K] (used if use_variable_delta_T is 0 or AGN_use_nheat_with_fixed_dT is 1 AND to initialise the BHs). AGN_delta_T_min: 1e7 # Minimum allowed value of AGN dT [K] (only used if use_variable_delta_T is 1).
AGN_use_nheat_with_fixed_dT: 0 # Switch to use the constant AGN dT, rather than the adaptive one, for calculating the energy reservoir threshold. AGN_delta_T_max: 3e9 # Maximum allowed value of AGN dT [K] (only used if use_variable_delta_T is 1).
AGN_use_adaptive_energy_reservoir_threshold: 0 # Switch to calculate an adaptive AGN energy reservoir threshold. AGN_delta_T_K: 3.16228e8 # Change in temperature to apply to the gas particle in an AGN feedback event [K] (used if use_variable_delta_T is 0 or AGN_use_nheat_with_fixed_dT is 1 AND to initialise the BHs).
AGN_num_ngb_to_heat: 1. # Target number of gas neighbours to heat in an AGN feedback event (only used if AGN_use_adaptive_energy_reservoir_threshold is 0). AGN_use_nheat_with_fixed_dT: 0 # Switch to use the constant AGN dT, rather than the adaptive one, for calculating the energy reservoir threshold.
max_reposition_mass: 1e20 # Maximal BH mass considered for BH repositioning in solar masses (large number implies we always reposition). AGN_use_adaptive_energy_reservoir_threshold: 0 # Switch to calculate an adaptive AGN energy reservoir threshold.
max_reposition_distance_ratio: 3.0 # Maximal distance a BH can be repositioned, in units of the softening length. AGN_num_ngb_to_heat: 1. # Target number of gas neighbours to heat in an AGN feedback event (only used if AGN_use_adaptive_energy_reservoir_threshold is 0).
with_reposition_velocity_threshold: 0 # Should we only reposition to particles that move slowly w.r.t. the black hole? max_reposition_mass: 1e20 # Maximal BH mass considered for BH repositioning in solar masses (large number implies we always reposition).
max_reposition_velocity_ratio: 0.5 # Maximal velocity offset of a particle to reposition a BH to, in units of the ambient sound speed of the BH. Only meaningful if with_reposition_velocity_threshold is 1. max_reposition_distance_ratio: 3.0 # Maximal distance a BH can be repositioned, in units of the softening length.
min_reposition_velocity_threshold: -1.0 # Minimal value of the velocity threshold for repositioning [km/s], set to < 0 for no effect. Only meaningful if with_reposition_velocity_threshold is 1. with_reposition_velocity_threshold: 0 # Should we only reposition to particles that move slowly w.r.t. the black hole?
set_reposition_speed: 0 # Should we reposition black holes with (at most) a prescribed speed towards the potential minimum? max_reposition_velocity_ratio: 0.5 # Maximal velocity offset of a particle to reposition a BH to, in units of the ambient sound speed of the BH. Only meaningful if with_reposition_velocity_threshold is 1.
threshold_major_merger: 0.333 # Mass ratio threshold to consider a BH merger as 'major' min_reposition_velocity_threshold: -1.0 # Minimal value of the velocity threshold for repositioning [km/s], set to < 0 for no effect. Only meaningful if with_reposition_velocity_threshold is 1.
threshold_minor_merger: 0.1 # Mass ratio threshold to consider a BH merger as 'minor' set_reposition_speed: 0 # Should we reposition black holes with (at most) a prescribed speed towards the potential minimum?
merger_threshold_type: 2 # Type of velocity threshold for BH mergers (0: v_circ at kernel edge, 1: v_esc at actual distance, with softening, 2: v_esc at actual distance, no softening). threshold_major_merger: 0.333 # Mass ratio threshold to consider a BH merger as 'major'
merger_max_distance_ratio: 3.0 # Maximal distance over which two BHs can merge, in units of the softening length. threshold_minor_merger: 0.1 # Mass ratio threshold to consider a BH merger as 'minor'
merger_threshold_type: 2 # Type of velocity threshold for BH mergers (0: v_circ at kernel edge, 1: v_esc at actual distance, with softening, 2: v_esc at actual distance, no softening).
merger_max_distance_ratio: 3.0 # Maximal distance over which two BHs can merge, in units of the softening length.
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