Commit 487b01a1 authored by Matthieu Schaller's avatar Matthieu Schaller

Update the default BH seeding and repositioning to the new favourite model

parent 0670b7e1
......@@ -67,7 +67,7 @@ FOF:
basename: fof_output # Filename for the FOF outputs.
min_group_size: 256 # The minimum no. of particles required for a group.
linking_length_ratio: 0.2 # Linking length in units of the main inter-particle separation.
black_hole_seed_halo_mass_Msun: 1.5e10 # Minimal halo mass in which to seed a black hole (in solar masses).
black_hole_seed_halo_mass_Msun: 1.0e10 # Minimal halo mass in which to seed a black hole (in solar masses).
scale_factor_first: 0.01 # Scale-factor of first FoF black hole seeding calls.
delta_time: 1.005 # Scale-factor ratio between consecutive FoF black hole seeding calls.
......@@ -181,7 +181,7 @@ EAGLEFeedback:
# EAGLE AGN model
EAGLEAGN:
subgrid_seed_mass_Msun: 1.5e5 # 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.
multi_phase_bondi: 0 # Compute Bondi rates per neighbour particle?
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?
......@@ -194,9 +194,9 @@ EAGLEAGN:
AGN_num_ngb_to_heat: 1. # Target number of gas neighbours to heat in an AGN feedback event.
max_reposition_mass: 1e20 # Maximal BH mass considered for BH repositioning in solar masses (large number implies we always reposition).
max_reposition_distance_ratio: 3.0 # Maximal distance a BH can be repositioned, in units of the softening length.
with_reposition_velocity_threshold: 1 # Should we only reposition to particles that move slowly w.r.t. the black hole?
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_ratio is 1.
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_ratio is 1.
with_reposition_velocity_threshold: 0 # Should we only reposition to particles that move slowly w.r.t. the black hole?
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.
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.
set_reposition_speed: 0 # Should we reposition black holes with (at most) a prescribed speed towards the potential minimum?
threshold_major_merger: 0.333 # Mass ratio threshold to consider a BH merger as 'major'
threshold_minor_merger: 0.1 # Mass ratio threshold to consider a BH merger as 'minor'
......
......@@ -68,7 +68,7 @@ FOF:
basename: fof_output # Filename for the FOF outputs.
min_group_size: 256 # The minimum no. of particles required for a group.
linking_length_ratio: 0.2 # Linking length in units of the main inter-particle separation.
black_hole_seed_halo_mass_Msun: 1.5e10 # Minimal halo mass in which to seed a black hole (in solar masses).
black_hole_seed_halo_mass_Msun: 1.0e10 # Minimal halo mass in which to seed a black hole (in solar masses).
scale_factor_first: 0.05 # Scale-factor of first FoF black hole seeding calls.
delta_time: 1.00751 # Scale-factor ratio between consecutive FoF black hole seeding calls.
......@@ -203,7 +203,7 @@ EAGLEFeedback:
# EAGLE AGN model
EAGLEAGN:
subgrid_seed_mass_Msun: 1.5e5 # 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.
multi_phase_bondi: 0 # Compute Bondi rates per neighbour particle?
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?
......@@ -216,9 +216,9 @@ EAGLEAGN:
AGN_num_ngb_to_heat: 1. # Target number of gas neighbours to heat in an AGN feedback event.
max_reposition_mass: 1e20 # Maximal BH mass considered for BH repositioning in solar masses (large number implies we always reposition).
max_reposition_distance_ratio: 3.0 # Maximal distance a BH can be repositioned, in units of the softening length.
with_reposition_velocity_threshold: 1 # Should we only reposition to particles that move slowly w.r.t. the black hole?
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_ratio is 1.
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_ratio is 1.
with_reposition_velocity_threshold: 0 # Should we only reposition to particles that move slowly w.r.t. the black hole?
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.
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.
set_reposition_speed: 0 # Should we reposition black holes with (at most) a prescribed speed towards the potential minimum?
threshold_major_merger: 0.333 # Mass ratio threshold to consider a BH merger as 'major'
threshold_minor_merger: 0.1 # Mass ratio threshold to consider a BH merger as 'minor'
......
......@@ -68,7 +68,7 @@ FOF:
basename: fof_output # Filename for the FOF outputs.
min_group_size: 256 # The minimum no. of particles required for a group.
linking_length_ratio: 0.2 # Linking length in units of the main inter-particle separation.
black_hole_seed_halo_mass_Msun: 1.5e10 # Minimal halo mass in which to seed a black hole (in solar masses).
black_hole_seed_halo_mass_Msun: 1.0e10 # Minimal halo mass in which to seed a black hole (in solar masses).
scale_factor_first: 0.05 # Scale-factor of first FoF black hole seeding calls.
delta_time: 1.00751 # Scale-factor ratio between consecutive FoF black hole seeding calls.
......@@ -203,7 +203,7 @@ EAGLEFeedback:
# EAGLE AGN model
EAGLEAGN:
subgrid_seed_mass_Msun: 1.5e5 # 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.
multi_phase_bondi: 0 # Compute Bondi rates per neighbour particle?
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?
......@@ -216,9 +216,9 @@ EAGLEAGN:
AGN_num_ngb_to_heat: 1. # Target number of gas neighbours to heat in an AGN feedback event.
max_reposition_mass: 1e20 # Maximal BH mass considered for BH repositioning in solar masses (large number implies we always reposition).
max_reposition_distance_ratio: 3.0 # Maximal distance a BH can be repositioned, in units of the softening length.
with_reposition_velocity_threshold: 1 # Should we only reposition to particles that move slowly w.r.t. the black hole?
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_ratio is 1.
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_ratio is 1.
with_reposition_velocity_threshold: 0 # Should we only reposition to particles that move slowly w.r.t. the black hole?
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.
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.
set_reposition_speed: 0 # Should we reposition black holes with (at most) a prescribed speed towards the potential minimum?
threshold_major_merger: 0.333 # Mass ratio threshold to consider a BH merger as 'major'
threshold_minor_merger: 0.1 # Mass ratio threshold to consider a BH merger as 'minor'
......
......@@ -68,7 +68,7 @@ FOF:
basename: fof_output # Filename for the FOF outputs.
min_group_size: 256 # The minimum no. of particles required for a group.
linking_length_ratio: 0.2 # Linking length in units of the main inter-particle separation.
black_hole_seed_halo_mass_Msun: 1.5e10 # Minimal halo mass in which to seed a black hole (in solar masses).
black_hole_seed_halo_mass_Msun: 1.0e10 # Minimal halo mass in which to seed a black hole (in solar masses).
scale_factor_first: 0.05 # Scale-factor of first FoF black hole seeding calls.
delta_time: 1.00751 # Scale-factor ratio between consecutive FoF black hole seeding calls.
......@@ -201,7 +201,7 @@ EAGLEFeedback:
# EAGLE AGN model
EAGLEAGN:
subgrid_seed_mass_Msun: 1.5e5 # 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.
multi_phase_bondi: 0 # Compute Bondi rates per neighbour particle?
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?
......@@ -214,9 +214,9 @@ EAGLEAGN:
AGN_num_ngb_to_heat: 1. # Target number of gas neighbours to heat in an AGN feedback event.
max_reposition_mass: 1e20 # Maximal BH mass considered for BH repositioning in solar masses (large number implies we always reposition).
max_reposition_distance_ratio: 3.0 # Maximal distance a BH can be repositioned, in units of the softening length.
with_reposition_velocity_threshold: 1 # Should we only reposition to particles that move slowly w.r.t. the black hole?
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_ratio is 1.
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_ratio is 1.
with_reposition_velocity_threshold: 0 # Should we only reposition to particles that move slowly w.r.t. the black hole?
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.
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.
set_reposition_speed: 0 # Should we reposition black holes with (at most) a prescribed speed towards the potential minimum?
threshold_major_merger: 0.333 # Mass ratio threshold to consider a BH merger as 'major'
threshold_minor_merger: 0.1 # Mass ratio threshold to consider a BH merger as 'minor'
......
......@@ -68,7 +68,7 @@ FOF:
basename: fof_output # Filename for the FOF outputs.
min_group_size: 32 # The minimum no. of particles required for a group.
linking_length_ratio: 0.2 # Linking length in units of the main inter-particle separation.
black_hole_seed_halo_mass_Msun: 1.5e10 # Minimal halo mass in which to seed a black hole (in solar masses).
black_hole_seed_halo_mass_Msun: 1.0e10 # Minimal halo mass in which to seed a black hole (in solar masses).
scale_factor_first: 0.05 # Scale-factor of first FoF black hole seeding calls.
delta_time: 1.00751 # Scale-factor ratio between consecutive FoF black hole seeding calls.
......@@ -200,7 +200,7 @@ EAGLEFeedback:
# EAGLE AGN model
EAGLEAGN:
subgrid_seed_mass_Msun: 1.5e5 # 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.
multi_phase_bondi: 0 # Compute Bondi rates per neighbour particle?
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?
......@@ -213,9 +213,9 @@ EAGLEAGN:
AGN_num_ngb_to_heat: 1. # Target number of gas neighbours to heat in an AGN feedback event.
max_reposition_mass: 1e20 # Maximal BH mass considered for BH repositioning in solar masses (large number implies we always reposition).
max_reposition_distance_ratio: 3.0 # Maximal distance a BH can be repositioned, in units of the softening length.
with_reposition_velocity_threshold: 1 # Should we only reposition to particles that move slowly w.r.t. the black hole?
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_ratio is 1.
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_ratio is 1.
with_reposition_velocity_threshold: 0 # Should we only reposition to particles that move slowly w.r.t. the black hole?
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.
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.
set_reposition_speed: 0 # Should we reposition black holes with (at most) a prescribed speed towards the potential minimum?
threshold_major_merger: 0.333 # Mass ratio threshold to consider a BH merger as 'major'
threshold_minor_merger: 0.1 # Mass ratio threshold to consider a BH merger as 'minor'
......
......@@ -68,7 +68,7 @@ FOF:
basename: fof_output # Filename for the FOF outputs.
min_group_size: 256 # The minimum no. of particles required for a group.
linking_length_ratio: 0.2 # Linking length in units of the main inter-particle separation.
black_hole_seed_halo_mass_Msun: 1.5e10 # Minimal halo mass in which to seed a black hole (in solar masses).
black_hole_seed_halo_mass_Msun: 1.0e10 # Minimal halo mass in which to seed a black hole (in solar masses).
scale_factor_first: 0.05 # Scale-factor of first FoF black hole seeding calls.
delta_time: 1.00751 # Scale-factor ratio between consecutive FoF black hole seeding calls.
......@@ -203,7 +203,7 @@ EAGLEFeedback:
# EAGLE AGN model
EAGLEAGN:
subgrid_seed_mass_Msun: 1.5e5 # 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.
multi_phase_bondi: 0 # Compute Bondi rates per neighbour particle?
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?
......@@ -216,9 +216,9 @@ EAGLEAGN:
AGN_num_ngb_to_heat: 1. # Target number of gas neighbours to heat in an AGN feedback event.
max_reposition_mass: 1e20 # Maximal BH mass considered for BH repositioning in solar masses (large number implies we always reposition).
max_reposition_distance_ratio: 3.0 # Maximal distance a BH can be repositioned, in units of the softening length.
with_reposition_velocity_threshold: 1 # Should we only reposition to particles that move slowly w.r.t. the black hole?
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_ratio is 1.
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_ratio is 1.
with_reposition_velocity_threshold: 0 # Should we only reposition to particles that move slowly w.r.t. the black hole?
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.
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.
set_reposition_speed: 0 # Should we reposition black holes with (at most) a prescribed speed towards the potential minimum?
threshold_major_merger: 0.333 # Mass ratio threshold to consider a BH merger as 'major'
threshold_minor_merger: 0.1 # Mass ratio threshold to consider a BH merger as 'minor'
......
......@@ -47,6 +47,8 @@ the following changes have been made (at standard resolution):
(from 0.3 - 3.0).
- The halo mass for BH seeding has been lowered to 10^10 M_sun
(from 10^10/h Msun).
- The BH seed mass (subgrid mass at birth) has been lowered to
10^4 Msun (from 10^5/h Msun).
- The black hole accretion rate is now limited to 100% of the
Eddington rate (from 100/h = 150 %).
- The circular velocity threshold for BH mergers is measured
......@@ -54,6 +56,8 @@ the following changes have been made (at standard resolution):
length any more.
- The BHs can reposition only onto gas particles and not onto any
type as before.
- No limit is imposed any more on the velocity (w.r.t. the BH)
of the gas particles onto which the BHs can reposition.
- BHs of all masses can be repositioned (was limited to
M_BH < 1.8*10^8 Msun).
- The angular momentum term in the BH accretion model of
......
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