diff options
Diffstat (limited to 'fg21sim/extragalactic/clusters')
| -rw-r--r-- | fg21sim/extragalactic/clusters/halo.py | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/fg21sim/extragalactic/clusters/halo.py b/fg21sim/extragalactic/clusters/halo.py index 6b5a683..a8f218a 100644 --- a/fg21sim/extragalactic/clusters/halo.py +++ b/fg21sim/extragalactic/clusters/halo.py @@ -827,15 +827,16 @@ class RadioHalo: velocity dispersion from its energy. Merger energy: - E_m ≅ 0.5 * f_gas * M_sub * v^2 - ≅ 0.5 * f_gas * M_sub * (G*M_main / R_vir) + E_m ≅ 0.5 * f_gas * M_sub * v_vir^2 + v_vir = sqrt(G*M_main / R_vir) Turbulence energy: E_turb ≅ η_turb * E_m ≅ 0.5 * M_turb * <v_turb^2> - = 0.5 * f_gas * M_main(<L) * <v_turb^2> - = 0.5 * f_gas * f_mass(L/R_vir) * M_main * <v_turb^2> + = 0.5 * f_gas * M_total(<L) * <v_turb^2> + = 0.5 * f_gas * f_mass(L/R_vir) * M_total * <v_turb^2> + M_total = M_main + M_sub => Velocity dispersion: - <v_turb^2> ≅ (η_turb/f_mass) * (G*M_sub/R_vir) + <v_turb^2> ≅ (η_turb/f_mass) * (M_sub/M_total) * v_vir^2 Returns ------- @@ -848,11 +849,10 @@ class RadioHalo: z = COSMO.redshift(t) mass = self.M_main + self.M_sub R_vir = helper.radius_virial(mass=mass, z=z) * AUC.kpc2cm # [cm] - v2 = np.sqrt(AC.G * self.M_sub*AUC.Msun2g / R_vir) # [cm/s] - v2 *= AUC.cm2km # [km/s] + v2_vir = (AC.G * self.M_main*AUC.Msun2g / R_vir) * AUC.cm2km**2 fmass = helper.fmass_nfw(self.f_lturb) - v_turb = v2 * np.sqrt(self.eta_turb / fmass) - return v_turb + v2_turb = v2_vir * (self.eta_turb / fmass) * (self.M_sub / mass) + return np.sqrt(v2_turb) def _magnetic_field(self, t): """ |