From 375198fb380933ea1b00f2e42401550ae20da76d Mon Sep 17 00:00:00 2001 From: Aaron LI Date: Wed, 18 Oct 2017 16:14:59 +0800 Subject: clusters: Update radio halo radius estimation The simulated radio halo is assumed to have a radius of the falling sub-cluster; while previously it is assumed to be 1/4 of the virial radius of the merged cluster. The new estimation can agree better with the currently observed radio halos, which generally have a angular diameter size of ~2-7 [arcmin]. --- fg21sim/extragalactic/clusters/halo.py | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) (limited to 'fg21sim/extragalactic/clusters/halo.py') diff --git a/fg21sim/extragalactic/clusters/halo.py b/fg21sim/extragalactic/clusters/halo.py index 832371e..6bfa4ca 100644 --- a/fg21sim/extragalactic/clusters/halo.py +++ b/fg21sim/extragalactic/clusters/halo.py @@ -166,13 +166,17 @@ class RadioHalo: @property def radius(self): """ - The halo radius derived from the virial radius by a scaling - relation. + 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] """ - mass = self.M_main + self.M_sub # [Msun] - r_halo = helper.radius_halo(mass, self.z_merger) # [kpc] + r_halo = helper.radius_halo(self.M_main, self.M_sub, + self.z_merger) return r_halo @property -- cgit v1.2.2