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| author | Aaron LI <aly@aaronly.me> | 2017-10-21 22:13:42 +0800 |
|---|---|---|
| committer | Aaron LI <aly@aaronly.me> | 2017-10-21 22:13:42 +0800 |
| commit | 2ee32e7196f83a9350a2b83c03846f6282d7ffe9 (patch) | |
| tree | 7171acc49e70b31ef796c4a58f262c0367a6972f /fg21sim/extragalactic/clusters/main.py | |
| parent | a8a02a96a78a85ffacf52aa43c158ecc24391af3 (diff) | |
| download | fg21sim-2ee32e7196f83a9350a2b83c03846f6282d7ffe9.tar.bz2 | |
clusters/halo: Rewrite turbulence acceleration & diffusion coefficient!
The previous calculation of the turbulence acceleration efficiency has
significant problems, which is too low, i.e., the acceleration timescale is
too large (~10 Gyr). However, it is reported that turbulent acceleration has
a timescale ~100 Myr (0.1 Gyr). I believe this problem is due to the
over-simplification to the formula proposed by [cassano2005].
Rewrite the turbulence acceleration and diffusion coefficient calculations,
adopting the method proposed by [brunetti2016]. To this end, two new options
"f_lturb" and "f_acc" are introduced to tune the results.
Diffstat (limited to 'fg21sim/extragalactic/clusters/main.py')
| -rw-r--r-- | fg21sim/extragalactic/clusters/main.py | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fg21sim/extragalactic/clusters/main.py b/fg21sim/extragalactic/clusters/main.py index 506e77c..dfc8e6e 100644 --- a/fg21sim/extragalactic/clusters/main.py +++ b/fg21sim/extragalactic/clusters/main.py @@ -281,8 +281,9 @@ class GalaxyClusters: ("Rhalo", halo.radius), # [kpc] ("Rhalo_angular", halo.angular_radius), # [arcsec] ("volume", halo.volume), # [kpc^3] + ("Mach_turb", halo.Mach_turbulence), # turbulence Mach number + ("tau_acc", halo.tau_acceleration), # [Gyr] ("Ke", halo.injection_rate), # [cm^-3 Gyr^-1] - ("chi", halo._chi_acceleration()), # [Gyr^-1] ("gamma", halo.gamma), # Lorentz factors ("n_e", n_e), # [cm^-3] ]) |