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| author | Aaron LI <aly@aaronly.me> | 2019-01-18 17:40:08 +0800 |
|---|---|---|
| committer | Aaron LI <aly@aaronly.me> | 2019-01-18 17:40:08 +0800 |
| commit | d23e8897ac28ab0e7b5919ffc1898403c5d84582 (patch) | |
| tree | 644f46503733ea3e4123690e67b2b1771083c614 /fg21sim/extragalactic/clusters/halo.py | |
| parent | 211cad9fc0db7b14908fda113a5e3df7cd31676f (diff) | |
| download | fg21sim-d23e8897ac28ab0e7b5919ffc1898403c5d84582.tar.bz2 | |
clusters/halo: Update turbulence velocity dispersion calcuation
Diffstat (limited to 'fg21sim/extragalactic/clusters/halo.py')
| -rw-r--r-- | fg21sim/extragalactic/clusters/halo.py | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/fg21sim/extragalactic/clusters/halo.py b/fg21sim/extragalactic/clusters/halo.py index 99f2306..861c32b 100644 --- a/fg21sim/extragalactic/clusters/halo.py +++ b/fg21sim/extragalactic/clusters/halo.py @@ -640,7 +640,7 @@ class RadioHalo1M: @lru_cache() def _rho_gas_f(self, t): """ - The gas density profile of the merged cluster. + The gas density profile of the main cluster. Returns ------- @@ -648,10 +648,9 @@ class RadioHalo1M: A function that calculates the gas density of unit [Msun/kpc^3]. """ z = COSMO.redshift(t) - M_main = self.mass_main(t) - M_sub = self.mass_sub(t) - return helper.calc_gas_density_profile(mass=M_main+M_sub, z=z, - f_rc=self.f_rc, beta=self.beta) + mass = self.mass_main(t) + return helper.calc_gas_density_profile(mass, z, f_rc=self.f_rc, + beta=self.beta) @lru_cache() def _velocity_turb(self, t): @@ -666,7 +665,7 @@ class RadioHalo1M: Merger energy: E_merger ≅ <ρ_gas> * v_i^2 * V_turb - V_turb = ᴨ * r_s^2 * R_vir + V_turb = ᴨ * r_s^2 * (R_vir+r_s) Turbulence energy: E_turb ≅ η_turb * E_merger ≅ 0.5 * M_turb * <v_turb^2> => Velocity dispersion: @@ -699,7 +698,7 @@ class RadioHalo1M: R_vir = helper.radius_virial(M_main, z) # [kpc] r_s = self.radius_stripping(t) # [kpc] - V_turb = np.pi * r_s**2 * R_vir # [kpc^3] + V_turb = np.pi * r_s**2 * (R_vir+r_s) # [kpc^3] E_turb = self.eta_turb * rho_main * v_i**2 * V_turb v2_turb = 2 * E_turb / M_turb # [km^2/s^2] return np.sqrt(v2_turb) # [km/s] |