diff options
Diffstat (limited to 'fg21sim/extragalactic/clusters')
| -rw-r--r-- | fg21sim/extragalactic/clusters/halo.py | 70 |
1 files changed, 35 insertions, 35 deletions
diff --git a/fg21sim/extragalactic/clusters/halo.py b/fg21sim/extragalactic/clusters/halo.py index 7457ce6..3ddfe5a 100644 --- a/fg21sim/extragalactic/clusters/halo.py +++ b/fg21sim/extragalactic/clusters/halo.py @@ -198,6 +198,36 @@ class RadioHalo1M: return self.t_merger @lru_cache() + def radius_strip(self, t_merger): + """ + The stripping radius of the in-falling sub-cluster at time t. + Unit: [kpc] + """ + self._validate_t_merger(t_merger) + z = COSMO.redshift(t_merger) + M_main = self.mass_main(t_merger) + M_sub = self.mass_sub(t_merger) + return helper.radius_stripping(M_main, M_sub, z, + f_rc=self.f_rc, beta=self.beta) + + @lru_cache() + def radius_turb(self, t_merger): + """ + The radius of the turbulence region, which is estimated as the + stripping radius ``r_s`` of the sub-cluster if ``r_s`` is larger + than the core radius ``r_c`` of the main cluster, otherwise, as + ``r_c``. + + Unit: [kpc] + """ + self._validate_t_merger(t_merger) + z = COSMO.redshift(t_merger) + M_main = self.mass_main(t_merger) + r_s = self.radius_strip(t_merger) + r_c = self.f_rc * helper.radius_virial(M_main, z) + return max([r_s, r_c]) + + @lru_cache() def duration_turb(self, t_merger): """ The duration that the turbulence persists strong enough to be @@ -213,7 +243,7 @@ class RadioHalo1M: z_merger = COSMO.redshift(t_merger) M_main = self.mass_main(t=t_merger) M_sub = self.mass_sub(t=t_merger) - L_turb = 2 * self.radius_turbulence(t_merger) + L_turb = 2 * self.radius_turb(t_merger) vi = helper.velocity_impact(M_main, M_sub, z_merger) uconv = AUC.kpc2km * AUC.s2Gyr # [kpc]/[km/s] => [Gyr] return uconv * 2*L_turb / vi # [Gyr] @@ -254,8 +284,8 @@ class RadioHalo1M: z = COSMO.redshift(t_merger) M_main = self.mass_main(t_merger) M_sub = self.mass_sub(t_merger) - r_s = self.radius_stripping(t_merger) # [kpc] - R_turb = self.radius_turbulence(t_merger) # [kpc] + r_s = self.radius_strip(t_merger) # [kpc] + R_turb = self.radius_turb(t_merger) # [kpc] rho_gas_f = helper.calc_gas_density_profile( M_main, z, f_rc=self.f_rc, beta=self.beta) @@ -284,36 +314,6 @@ class RadioHalo1M: return v_turb / cs @lru_cache() - def radius_turbulence(self, t_merger): - """ - The radius of the turbulence region, which is estimated as the - stripping radius ``r_s`` of the sub-cluster if ``r_s`` is larger - than the core radius ``r_c`` of the main cluster, otherwise, as - ``r_c``. - - Unit: [kpc] - """ - self._validate_t_merger(t_merger) - z = COSMO.redshift(t_merger) - M_main = self.mass_main(t_merger) - r_s = self.radius_stripping(t_merger) - r_c = self.f_rc * helper.radius_virial(M_main, z) - return max([r_s, r_c]) - - @lru_cache() - def radius_stripping(self, t_merger): - """ - The stripping radius of the in-falling sub-cluster at time t. - Unit: [kpc] - """ - self._validate_t_merger(t_merger) - z = COSMO.redshift(t_merger) - M_main = self.mass_main(t_merger) - M_sub = self.mass_sub(t_merger) - return helper.radius_stripping(M_main, M_sub, z, - f_rc=self.f_rc, beta=self.beta) - - @lru_cache() def tau_acceleration(self, t_merger): """ Calculate the electron acceleration timescale due to turbulent @@ -354,7 +354,7 @@ class RadioHalo1M: """ self._validate_t_merger(t_merger) - L = 2 * self.radius_turbulence(t_merger) # [kpc] + L = 2 * self.radius_turb(t_merger) # [kpc] k_L = 2 * np.pi / L_turb cs = helper.speed_sound(self.kT(t_merger)) # [km/s] v_t = self.velocity_turb(t_merger) # [km/s] @@ -922,7 +922,7 @@ class RadioHalo: z_merger=hdict["z_merger"], configs=self.configs) hdict["halo"] = halo - hdict["radius_turb"] = halo.radius_turbulence(halo.t_merger) + hdict["radius_turb"] = halo.radius_turb(halo.t_merger) hdict["genuine"] = False halos.sort(key=lambda h: h["radius_turb"], reverse=True) |