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-rw-r--r--fg21sim/extragalactic/clusters/halo.py16
1 files changed, 13 insertions, 3 deletions
diff --git a/fg21sim/extragalactic/clusters/halo.py b/fg21sim/extragalactic/clusters/halo.py
index 21e3374..81a185c 100644
--- a/fg21sim/extragalactic/clusters/halo.py
+++ b/fg21sim/extragalactic/clusters/halo.py
@@ -254,10 +254,20 @@ class RadioHalo:
"""
z = COSMO.redshift(t)
M_main = self.mass_main(t)
- M_sub = self.mass_sub(t)
- rs = helper.radius_stripping(M_main, M_sub, z, configs=self.configs)
R_vir = helper.radius_virial(M_main, z)
- return (R_vir + rs) / 2
+ r_s = self.radius_stripping(t)
+ return (R_vir + r_s) / 2
+
+ @lru_cache()
+ def radius_stripping(self, t):
+ """
+ The stripping radius of the in-falling sub-cluster at time t.
+ Unit: [kpc]
+ """
+ z = COSMO.redshift(t)
+ M_main = self.mass_main(t)
+ M_sub = self.mass_sub(t)
+ return helper.radius_stripping(M_main, M_sub, z, configs=self.configs)
@property
def angular_radius(self):