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-rw-r--r--fg21sim/configs/20-extragalactic.conf.spec16
1 files changed, 14 insertions, 2 deletions
diff --git a/fg21sim/configs/20-extragalactic.conf.spec b/fg21sim/configs/20-extragalactic.conf.spec
index 52f66da..2924cf6 100644
--- a/fg21sim/configs/20-extragalactic.conf.spec
+++ b/fg21sim/configs/20-extragalactic.conf.spec
@@ -167,13 +167,25 @@
# used to determine the radio halo size.
f_lturb = float(default=0.33, min=0.1, max=1.0)
- # Ratio of the total energy injected into cosmic-ray electrons during
- # the cluster life to its total thermal energy.
+ # An efficiency factor describing the effectiveness of plasma
+ # instabilities (e.g., due to spatial or temporal intermittency).
+ zeta_ins = float(default=0.1, min=0.1, max=1.0)
+
# The fraction of merger energy transferred into the turbulence.
eta_turb = float(default=0.1, min=0.1, max=0.5)
+ # The fraction of the thermal energy injected into the cosmic-ray
+ # electrons during the cluster life time.
eta_e = float(default=0.001, min=0.001, max=0.1)
+ # The ratio of cosmic ray (including protons and electrons) energy
+ # density (i.e., pressure) to the thermal energy density.
+ # NOTE: Fermi-LAT has placed an upper limit of ~1.25%-1.4%
+ # (Ackermann et al. 2014, ApJ, 787, 18)
+ # NOTE: The energy ratio of cosmic-ray electrons to protons K_ep ~0.01
+ # for our Galaxy (Pinzke et al. 2017, MNRAS, 465, 4800)
+ x_cr = float(default=0.01, min=0.001, max=0.1)
+
# Electron injection, which is assumed to have a constant injection
# rate and a power-law spectrum.
injection_index = float(default=2.3, min=2.1, max=3.0)