From 85add9c303161f4a68c15a495ef1fc8af8182635 Mon Sep 17 00:00:00 2001 From: Aaron LI Date: Tue, 1 Aug 2017 00:13:54 +0800 Subject: clusters/halo.py: Finished brief simulation description --- fg21sim/extragalactic/clusters/halo.py | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) (limited to 'fg21sim') diff --git a/fg21sim/extragalactic/clusters/halo.py b/fg21sim/extragalactic/clusters/halo.py index 50c1242..586c7e0 100644 --- a/fg21sim/extragalactic/clusters/halo.py +++ b/fg21sim/extragalactic/clusters/halo.py @@ -68,9 +68,19 @@ class RadioHalo: only during merger crossing), and then been disabled (i.e., only radiation and ionization losses later); 3. Assume the electrons are constantly injected and has a power-law - energy spectrum; - 4. Determine the initial electron density - TODO... + energy spectrum, determine the injection rate by further assuming + that the total injected electrons has energy of a fraction (eta_e) + of the ICM total thermal energy; + 4. Set the initial electron density/spectrum be the total injected + electrons during t_merger time; + 5. Calculate the magnetic field from the cluster total mass (which + is assumed to be growth linearly from M_main+M_sub to M_obs); + 6. Calculate the energy losses for the coefficients of Fokker-Planck + equation; + 7. Solve the Fokker-Planck equation to derive the relativistic + electron spectrum at t_obs (i.e., z_obs); + 8. Calculate the synchrotron emissivity from the derived electron + spectrum. Parameters ---------- -- cgit v1.2.2