fg21sim.git/fg21sim/extragalactic/clusters, branch v0.6.4 Simulate foreground for 21cm EoR signal detection clusters/halo: Add back "mach_turbulence" attribute 2017-12-31T09:13:49+00:00 Aaron LI aly@aaronly.me 2017-12-31T09:13:49+00:00 b42cea7321f6d5d1464a5445cb8f3fe3a9ee2995 






clusters/halo: Rework the turbulence acceleration timescale calculation
2017-12-31T08:36:56+00:00

Aaron LI
aly@aaronly.me

2017-12-31T08:36:56+00:00

695cb0272a2d6ea22e2d8988fdf723c1b944072f

The new method adopted to determine the turbulence acceleration timescale
follows [miniati2015] and [pinzke2017], in which the merger-induced turbulence
cascades into small scales (and thus accelerate electrons) through the
TTD (transit-time damping) mechanism by scattering mainly with the
relativistic particles (cosmic-ray protons and electrons).





The new method adopted to determine the turbulence acceleration timescale
follows [miniati2015] and [pinzke2017], in which the merger-induced turbulence
cascades into small scales (and thus accelerate electrons) through the
TTD (transit-time damping) mechanism by scattering mainly with the
relativistic particles (cosmic-ray protons and electrons).







clusters/halo: calc turbulence velocity dispersion based on merger
2017-12-31T08:34:55+00:00

Aaron LI
aly@aaronly.me

2017-12-31T08:34:55+00:00

46c36b299dbe29d2872ae1ae6d98f1bde320bad0

Also update the description of option "extragalactic/halos/eta_turb"
and change its default value to 0.1





Also update the description of option "extragalactic/halos/eta_turb"
and change its default value to 0.1







clusters/halo/helper: Add fmass_nfw() to calc NFW mass profile
2017-12-31T08:29:51+00:00

Aaron LI
aly@aaronly.me

2017-12-31T08:29:51+00:00

ea793b05168a31460a36bb22cab98108e35c05d0












Minor cleanups
2017-12-31T08:29:28+00:00

Aaron LI
aly@aaronly.me

2017-12-30T16:06:05+00:00

ca3a67aa2633912be96572b4fe4f2496facd97a1












Minor cleanups
2017-12-30T12:52:30+00:00

Aaron LI
aly@aaronly.me

2017-12-30T12:52:30+00:00

78570cb9021512ae437940b8592dba233968f5cd












clusters/halo: support to drop out the most powerful halos
2017-12-30T12:52:17+00:00

Aaron LI
aly@aaronly.me

2017-12-30T12:23:52+00:00

4b4103c9f44bce064d0f02bef1e997286bb6a7ef

The new option "extragalactic/clusters/halo_dropout" is added to specify how
many halos to be dropped out.





The new option "extragalactic/clusters/halo_dropout" is added to specify how
many halos to be dropped out.







clusters/halo: Add virial_speed() helper function
2017-12-30T12:23:02+00:00

Aaron LI
aly@aaronly.me

2017-12-30T12:23:02+00:00

07d2312bcea7971ff30229fa04d27c87dc1b297c












clusters/halo: Estimate turbulence acceleration w.r.t. injection scale
2017-12-30T12:21:48+00:00

Aaron LI
aly@aaronly.me

2017-12-30T12:21:48+00:00

b831796a7482e6545c303d8a8fbb60719fd4b807

The turbulence injection scale ~ halo size





The turbulence injection scale ~ halo size







cluster/halo: Estimate halo radius ~ 0.33*R_vir (main cluster)
2017-12-30T12:18:50+00:00

Aaron LI
aly@aaronly.me

2017-12-30T12:18:50+00:00

0478a88558f75d3afc6ecfc3e1af232520cb2bc8