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| author | Aaron LI <aly@aaronly.me> | 2018-01-03 23:30:17 +0800 |
|---|---|---|
| committer | Aaron LI <aly@aaronly.me> | 2018-01-03 23:30:17 +0800 |
| commit | a57a01fab43c6eb692fc04ccb0f0c348a1eba3b1 (patch) | |
| tree | 6a922a2c984e2415ba02a498c5989a65bd4dce87 | |
| parent | b314fbe5084df28e719ec777d575882d625d8f72 (diff) | |
| download | fg21sim-a57a01fab43c6eb692fc04ccb0f0c348a1eba3b1.tar.bz2 | |
clusters/halo: update radius_halo() calculation
| -rw-r--r-- | fg21sim/extragalactic/clusters/halo.py | 10 | ||||
| -rw-r--r-- | fg21sim/extragalactic/clusters/helper.py | 12 |
2 files changed, 7 insertions, 15 deletions
diff --git a/fg21sim/extragalactic/clusters/halo.py b/fg21sim/extragalactic/clusters/halo.py index a6dfbb3..847f57d 100644 --- a/fg21sim/extragalactic/clusters/halo.py +++ b/fg21sim/extragalactic/clusters/halo.py @@ -236,17 +236,9 @@ class RadioHalo: def radius(self): """ The estimated radius for the simulated radio halo. - - NOTE - ---- - The halo radius is assumed to be the virial radius of the falling - sub-cluster. See ``helper.radius_halo()`` for more details. - Unit: [kpc] """ - r_halo = helper.radius_halo(self.M_main, self.M_sub, - self.z_merger, configs=self.configs) - return r_halo + return helper.radius_halo(self.M_obs, self.z_obs, configs=self.configs) @property def angular_radius(self): diff --git a/fg21sim/extragalactic/clusters/helper.py b/fg21sim/extragalactic/clusters/helper.py index 88c566a..39cee12 100644 --- a/fg21sim/extragalactic/clusters/helper.py +++ b/fg21sim/extragalactic/clusters/helper.py @@ -89,23 +89,23 @@ def radius_virial(mass, z=0.0): return R_vir -def radius_halo(M_main, M_sub, z=0.0, configs=CONFIGS): +def radius_halo(mass, z=0.0, configs=CONFIGS): """ - Calculate the (predicted) radius of (giant) radio halo. + Estimate the radius of (giant) radio halo. NOTE ---- The halo radius is estimated to be the same as the turbulence injection scale, i.e.: R_halo ≅ L ≅ R_vir / 3 - where R_vir the virial radius of the merged cluster. + where R_vir the virial radius of the merged (observed) cluster. Reference: [vazza2011],Sec.(3.6) Parameters ---------- - M_main, M_sub : float, `~numpy.ndarray` - Total (virial) masses of the main and sub clusters + mass : float, `~numpy.ndarray` + Cluster virial mass. Unit: [Msun] z : float, `~numpy.ndarray`, optional Redshift @@ -120,7 +120,7 @@ def radius_halo(M_main, M_sub, z=0.0, configs=CONFIGS): # Turbulence injection scale factor key = "extragalactic/halos/f_lturb" f_lturb = configs.getn(key) - R_halo = f_lturb * radius_virial(mass=M_main+M_sub, z=z) # [kpc] + R_halo = f_lturb * radius_virial(mass=mass, z=z) # [kpc] return R_halo |