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-rw-r--r--fg21sim/configs/20-extragalactic.conf.spec5
1 files changed, 5 insertions, 0 deletions
diff --git a/fg21sim/configs/20-extragalactic.conf.spec b/fg21sim/configs/20-extragalactic.conf.spec
index 042a808..3b83cb0 100644
--- a/fg21sim/configs/20-extragalactic.conf.spec
+++ b/fg21sim/configs/20-extragalactic.conf.spec
@@ -187,6 +187,11 @@
# Electron injection, which is assumed to have a constant injection
# rate and a power-law spectrum.
injection_index = float(default=2.4, min=2.1, max=3.5)
+ # How long the period before the merger begins, which is used to derive
+ # an approximately steady initial electron spectrum. During this period,
+ # the acceleration is turned off and only leaves energy loss mechanisms.
+ # Unit: [Gyr]
+ time_init = float(default=0.4, min=0)
# Extragalactic point sources