Move the overdensity above which SF is allowed in the EAGLE model to 100 (was 57.7).

examples/EAGLE_ICs/EAGLE_100/eagle_100.yml

@@ -119,7 +119,7 @@ EAGLEStarFormation:
   EOS_gamma_effective:               1.3333333 # Slope the of the polytropic EOS assumed for the star-forming gas.
   KS_normalisation:                  1.515e-4  # The normalization of the Kennicutt-Schmidt law in Msun / kpc^2 / yr.
   KS_exponent:                       1.4       # The exponent of the Kennicutt-Schmidt law.
-  min_over_density:                  57.7      # The over-density above which star-formation is allowed.
+  min_over_density:                  100.0     # The over-density above which star-formation is allowed.
   KS_high_density_threshold_H_p_cm3: 1e3       # Hydrogen number density above which the Kennicut-Schmidt law changes slope in Hydrogen atoms per cm^3.
   KS_high_density_exponent:          2.0       # Slope of the Kennicut-Schmidt law above the high-density threshold.
   EOS_entropy_margin_dex:            0.5       # Logarithm base 10 of the maximal entropy above the EOS at which stars can form.

examples/EAGLE_ICs/EAGLE_12/eagle_12.yml

@@ -142,7 +142,7 @@ EAGLEStarFormation:
   EOS_gamma_effective:               1.3333333 # Slope the of the polytropic EOS assumed for the star-forming gas.
   KS_normalisation:                  1.515e-4  # The normalization of the Kennicutt-Schmidt law in Msun / kpc^2 / yr.
   KS_exponent:                       1.4       # The exponent of the Kennicutt-Schmidt law.
-  min_over_density:                  57.7      # The over-density above which star-formation is allowed.
+  min_over_density:                  100.0     # The over-density above which star-formation is allowed.
   KS_high_density_threshold_H_p_cm3: 1e3       # Hydrogen number density above which the Kennicut-Schmidt law changes slope in Hydrogen atoms per cm^3.
   KS_high_density_exponent:          2.0       # Slope of the Kennicut-Schmidt law above the high-density threshold.
   EOS_entropy_margin_dex:            0.3       # Logarithm base 10 of the maximal entropy above the EOS at which stars can form.

examples/EAGLE_ICs/EAGLE_25/eagle_25.yml

@@ -142,7 +142,7 @@ EAGLEStarFormation:
   EOS_gamma_effective:               1.3333333 # Slope the of the polytropic EOS assumed for the star-forming gas.
   KS_normalisation:                  1.515e-4  # The normalization of the Kennicutt-Schmidt law in Msun / kpc^2 / yr.
   KS_exponent:                       1.4       # The exponent of the Kennicutt-Schmidt law.
-  min_over_density:                  57.7      # The over-density above which star-formation is allowed.
+  min_over_density:                  100.0     # The over-density above which star-formation is allowed.
   KS_high_density_threshold_H_p_cm3: 1e3       # Hydrogen number density above which the Kennicut-Schmidt law changes slope in Hydrogen atoms per cm^3.
   KS_high_density_exponent:          2.0       # Slope of the Kennicut-Schmidt law above the high-density threshold.
   EOS_entropy_margin_dex:            0.3       # Logarithm base 10 of the maximal entropy above the EOS at which stars can form.

examples/EAGLE_ICs/EAGLE_50/eagle_50.yml

@@ -140,7 +140,7 @@ EAGLEStarFormation:
   EOS_gamma_effective:               1.3333333 # Slope the of the polytropic EOS assumed for the star-forming gas.
   KS_normalisation:                  1.515e-4  # The normalization of the Kennicutt-Schmidt law in Msun / kpc^2 / yr.
   KS_exponent:                       1.4       # The exponent of the Kennicutt-Schmidt law.
-  min_over_density:                  57.7      # The over-density above which star-formation is allowed.
+  min_over_density:                  100.0     # The over-density above which star-formation is allowed.
   KS_high_density_threshold_H_p_cm3: 1e3       # Hydrogen number density above which the Kennicut-Schmidt law changes slope in Hydrogen atoms per cm^3.
   KS_high_density_exponent:          2.0       # Slope of the Kennicut-Schmidt law above the high-density threshold.
   EOS_entropy_margin_dex:            0.3       # Logarithm base 10 of the maximal entropy above the EOS at which stars can form.
@@ -221,4 +221,4 @@ EAGLEAGN:
   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'
   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.
\ No newline at end of file
+  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

@@ -139,7 +139,7 @@ EAGLEStarFormation:
   EOS_gamma_effective:               1.3333333 # Slope the of the polytropic EOS assumed for the star-forming gas.
   KS_normalisation:                  1.515e-4  # The normalization of the Kennicutt-Schmidt law in Msun / kpc^2 / yr.
   KS_exponent:                       1.4       # The exponent of the Kennicutt-Schmidt law.
-  min_over_density:                  57.7      # The over-density above which star-formation is allowed.
+  min_over_density:                  100.0     # The over-density above which star-formation is allowed.
   KS_high_density_threshold_H_p_cm3: 1e3       # Hydrogen number density above which the Kennicut-Schmidt law changes slope in Hydrogen atoms per cm^3.
   KS_high_density_exponent:          2.0       # Slope of the Kennicut-Schmidt law above the high-density threshold.
   EOS_entropy_margin_dex:            0.3       # Logarithm base 10 of the maximal entropy above the EOS at which stars can form.

examples/EAGLE_ICs/EAGLE_6/eagle_6.yml

@@ -142,7 +142,7 @@ EAGLEStarFormation:
   EOS_gamma_effective:               1.3333333 # Slope the of the polytropic EOS assumed for the star-forming gas.
   KS_normalisation:                  1.515e-4  # The normalization of the Kennicutt-Schmidt law in Msun / kpc^2 / yr.
   KS_exponent:                       1.4       # The exponent of the Kennicutt-Schmidt law.
-  min_over_density:                  57.7      # The over-density above which star-formation is allowed.
+  min_over_density:                  100.0     # The over-density above which star-formation is allowed.
   KS_high_density_threshold_H_p_cm3: 1e3       # Hydrogen number density above which the Kennicut-Schmidt law changes slope in Hydrogen atoms per cm^3.
   KS_high_density_exponent:          2.0       # Slope of the Kennicut-Schmidt law above the high-density threshold.
   EOS_entropy_margin_dex:            0.3       # Logarithm base 10 of the maximal entropy above the EOS at which stars can form.

examples/EAGLE_ICs/README

@@ -38,6 +38,8 @@ the following changes have been made (at standard resolution):
  - Particles can be star-forming if they are within 0.3 dex of the
    entropy floor (was 0.5 dex). These particles also get their
    subgrid properties (rho, T as well as the HI and H_2 frac) computed.
+ - Particles can be star-forming if they are in an over-density of
+   at least 100 (was 57.7).
  - The minimal mass of SNII stars has been raised to 8 Msun (from 6).
  - The SNII feedback delay is done by sampling the stellar age
    distribution and not using a fixed delay of 30 Myr any more.

examples/EAGLE_low_z/EAGLE_12/eagle_12.yml

@@ -126,7 +126,7 @@ EAGLEStarFormation:
   EOS_gamma_effective:               1.3333333 # Slope the of the polytropic EOS assumed for the star-forming gas.
   KS_normalisation:                  1.515e-4  # The normalization of the Kennicutt-Schmidt law in Msun / kpc^2 / yr.
   KS_exponent:                       1.4       # The exponent of the Kennicutt-Schmidt law.
-  min_over_density:                  57.7      # The over-density above which star-formation is allowed.
+  min_over_density:                  100.0     # The over-density above which star-formation is allowed.
   KS_high_density_threshold_H_p_cm3: 1e3       # Hydrogen number density above which the Kennicut-Schmidt law changes slope in Hydrogen atoms per cm^3.
   KS_high_density_exponent:          2.0       # Slope of the Kennicut-Schmidt law above the high-density threshold.
   EOS_entropy_margin_dex:            0.3       # Logarithm base 10 of the maximal entropy above the EOS at which stars can form.

examples/EAGLE_low_z/EAGLE_25/eagle_25.yml

@@ -134,7 +134,7 @@ EAGLEStarFormation:
   EOS_gamma_effective:               1.3333333 # Slope the of the polytropic EOS assumed for the star-forming gas.
   KS_normalisation:                  1.515e-4  # The normalization of the Kennicutt-Schmidt law in Msun / kpc^2 / yr.
   KS_exponent:                       1.4       # The exponent of the Kennicutt-Schmidt law.
-  min_over_density:                  57.7      # The over-density above which star-formation is allowed.
+  min_over_density:                  100.0     # The over-density above which star-formation is allowed.
   KS_high_density_threshold_H_p_cm3: 1e3       # Hydrogen number density above which the Kennicut-Schmidt law changes slope in Hydrogen atoms per cm^3.
   KS_high_density_exponent:          2.0       # Slope of the Kennicut-Schmidt law above the high-density threshold.
   EOS_entropy_margin_dex:            0.3       # Logarithm base 10 of the maximal entropy above the EOS at which stars can form.

examples/EAGLE_low_z/EAGLE_50/eagle_50.yml

@@ -125,7 +125,7 @@ EAGLEStarFormation:
   EOS_gamma_effective:               1.3333333 # Slope the of the polytropic EOS assumed for the star-forming gas.
   KS_normalisation:                  1.515e-4  # The normalization of the Kennicutt-Schmidt law in Msun / kpc^2 / yr.
   KS_exponent:                       1.4       # The exponent of the Kennicutt-Schmidt law.
-  min_over_density:                  57.7      # The over-density above which star-formation is allowed.
+  min_over_density:                  100.0     # The over-density above which star-formation is allowed.
   KS_high_density_threshold_H_p_cm3: 1e3       # Hydrogen number density above which the Kennicut-Schmidt law changes slope in Hydrogen atoms per cm^3.
   KS_high_density_exponent:          2.0       # Slope of the Kennicut-Schmidt law above the high-density threshold.
   EOS_entropy_margin_dex:            0.3       # Logarithm base 10 of the maximal entropy above the EOS at which stars can form.

examples/EAGLE_low_z/EAGLE_6/eagle_6.yml

@@ -137,7 +137,7 @@ EAGLEStarFormation:
   EOS_gamma_effective:               1.3333333 # Slope the of the polytropic EOS assumed for the star-forming gas.
   KS_normalisation:                  1.515e-4  # The normalization of the Kennicutt-Schmidt law in Msun / kpc^2 / yr.
   KS_exponent:                       1.4       # The exponent of the Kennicutt-Schmidt law.
-  min_over_density:                  57.7      # The over-density above which star-formation is allowed.
+  min_over_density:                  100.0     # The over-density above which star-formation is allowed.
   KS_high_density_threshold_H_p_cm3: 1e3       # Hydrogen number density above which the Kennicut-Schmidt law changes slope in Hydrogen atoms per cm^3.
   KS_high_density_exponent:          2.0       # Slope of the Kennicut-Schmidt law above the high-density threshold.
   EOS_entropy_margin_dex:            0.3       # Logarithm base 10 of the maximal entropy above the EOS at which stars can form.

examples/IsolatedGalaxy/IsolatedGalaxy_feedback/isolated_galaxy.yml

@@ -112,7 +112,7 @@ EAGLEStarFormation:
   EOS_gamma_effective:               1.3333333 # Slope the of the polytropic EOS assumed for the star-forming gas.
   KS_normalisation:                  1.515e-4  # The normalization of the Kennicutt-Schmidt law in Msun / kpc^2 / yr.
   KS_exponent:                       1.4       # The exponent of the Kennicutt-Schmidt law.
-  min_over_density:                  57.7      # The over-density above which star-formation is allowed.
+  min_over_density:                  100.0     # The over-density above which star-formation is allowed.
   KS_high_density_threshold_H_p_cm3: 1e3       # Hydrogen number density above which the Kennicut-Schmidt law changes slope in Hydrogen atoms per cm^3.
   KS_high_density_exponent:          2.0       # Slope of the Kennicut-Schmidt law above the high-density threshold.
   EOS_entropy_margin_dex:            0.3       # Logarithm base 10 of the maximal entropy above the EOS at which stars can form.

examples/IsolatedGalaxy/IsolatedGalaxy_starformation/isolated_galaxy.yml

@@ -106,7 +106,7 @@ EAGLEStarFormation:
   gas_fraction:                      0.3       # The gas fraction used internally by the model.
   KS_normalisation:                  1.515e-4  # The normalization of the Kennicutt-Schmidt law in Msun / kpc^2 / yr.
   KS_exponent:                       1.4       # The exponent of the Kennicutt-Schmidt law.
-  min_over_density:                  57.7      # The over-density above which star-formation is allowed.
+  min_over_density:                  100.0     # The over-density above which star-formation is allowed.
   KS_high_density_threshold_H_p_cm3: 1e3       # Hydrogen number density above which the Kennicut-Schmidt law changes slope in Hydrogen atoms per cm^3.
   KS_high_density_exponent:          2.0       # Slope of the Kennicut-Schmidt law above the high-density threshold.
   EOS_entropy_margin_dex:            0.3       # Logarithm base 10 of the maximal entropy above the EOS at which stars can form.