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authorAaron LI <aly@aaronly.me>2017-08-14 20:49:02 +0800
committerAaron LI <aly@aaronly.me>2017-08-14 20:49:02 +0800
commitcc71b0bc70b5602dcdc9bdeffdfdc3632f92029f (patch)
tree1d6f754618fae8ad9c8e6341594ae47180619f60 /fg21sim/extragalactic/clusters
parent1127396c18feed61c13e6c76bef48fca1123c33b (diff)
downloadfg21sim-cc71b0bc70b5602dcdc9bdeffdfdc3632f92029f.tar.bz2
clusters/halo.py: Simplify two coefficients usage
Signed-off-by: Aaron LI <aly@aaronly.me>
Diffstat (limited to 'fg21sim/extragalactic/clusters')
-rw-r--r--fg21sim/extragalactic/clusters/halo.py12
1 files changed, 5 insertions, 7 deletions
diff --git a/fg21sim/extragalactic/clusters/halo.py b/fg21sim/extragalactic/clusters/halo.py
index b4a504d..d5c5cf1 100644
--- a/fg21sim/extragalactic/clusters/halo.py
+++ b/fg21sim/extragalactic/clusters/halo.py
@@ -558,9 +558,8 @@ class RadioHalo:
"""
z = COSMO.redshift(t)
mass = self._mass(t)
- n_th = helper.density_number_thermal(mass, z)
- coef = -1.20e-12 * AUC.Gyr2s # [Gyr^-1]
- loss = coef * n_th * (1 + np.log(gamma/n_th) / 75)
+ n_th = helper.density_number_thermal(mass, z) # [cm^-3]
+ loss = -3.79e4 * n_th * (1 + np.log(gamma/n_th) / 75)
return loss
def _loss_rad(self, gamma, t):
@@ -573,8 +572,7 @@ class RadioHalo:
Ref.[sarazin1999],Eq.(6,7)
"""
z = COSMO.redshift(t)
- mass = self._mass(t)
- B = helper.magnetic_field(mass)
- coef = -1.37e-20 * AUC.Gyr2s # [Gyr^-1]
- loss = coef * gamma**2 * ((B/3.25)**2 + (1+z)**4)
+ mass = self._mass(t) # [Msun]
+ B = helper.magnetic_field(mass) # [uG]
+ loss = -4.32e-4 * gamma**2 * ((B/3.25)**2 + (1+z)**4)
return loss