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| author | Aaron LI <aly@aaronly.me> | 2017-07-25 09:32:12 +0800 |
|---|---|---|
| committer | Aaron LI <aly@aaronly.me> | 2017-07-25 09:32:12 +0800 |
| commit | 2960ea13adf5d95b4bb2f6869d59186b2c9b2158 (patch) | |
| tree | bd21fe083064a78f63a3a445ba74bc60fd5eb66e | |
| parent | e727de48313acacb55649893851674bb38fc3c72 (diff) | |
| download | fg21sim-2960ea13adf5d95b4bb2f6869d59186b2c9b2158.tar.bz2 | |
clusters/halo: Change config "eta_turb" to "beta_turb"
This configuration option "beta_turb" has different meaning as
"eta_turb" in [Cassano & Brunetti 2005], though they can both be an
indicator for the turbulence acceleration efficiency.
Rename this configuration option to make the difference more clear.
Signed-off-by: Aaron LI <aly@aaronly.me>
| -rw-r--r-- | fg21sim/configs/20-extragalactic.conf.spec | 5 | ||||
| -rw-r--r-- | fg21sim/extragalactic/clusters/halo.py | 6 |
2 files changed, 5 insertions, 6 deletions
diff --git a/fg21sim/configs/20-extragalactic.conf.spec b/fg21sim/configs/20-extragalactic.conf.spec index b35507e..a48dbee 100644 --- a/fg21sim/configs/20-extragalactic.conf.spec +++ b/fg21sim/configs/20-extragalactic.conf.spec @@ -65,9 +65,8 @@ # Emission of giant radio halos from galaxy clusters [[halos]] - # Fraction of the turbulence energy in the form of magneto-sonic waves, - # which will channel into relativistic electrons. - eta_turb = float(default=0.3, min=0.0, max=1.0) + # Intensity of the turbulence acceleration. + beta_turb = float(default=0.3, min=0.1, max=2.0) # Ratio of the total energy injected into cosmic-ray electrons during # the cluster life to its total thermal energy. diff --git a/fg21sim/extragalactic/clusters/halo.py b/fg21sim/extragalactic/clusters/halo.py index ce4bcaf..7c52f97 100644 --- a/fg21sim/extragalactic/clusters/halo.py +++ b/fg21sim/extragalactic/clusters/halo.py @@ -111,7 +111,7 @@ class RadioHalo: def _set_configs(self): comp = "extragalactic/halos" - self.eta_turb = self.configs.getn(comp+"/eta_turb") + self.beta_turb = self.configs.getn(comp+"/beta_turb") self.eta_e = self.configs.getn(comp+"/eta_e") self.gamma_min = self.configs.getn(comp+"/gamma_min") self.gamma_max = self.configs.getn(comp+"/gamma_max") @@ -327,7 +327,7 @@ class RadioHalo: A reference value of the acceleration time due to TTD (transit-time damping) resonance is ~0.1 Gyr (Ref.[brunetti2011], Eq.(27) below); the formula derived by [cassano2005] (Eq.(40)) - has a dependence on ``eta_turb``. + has a dependence on ``beta_turb``. NOTE ---- @@ -348,7 +348,7 @@ class RadioHalo: if t > self.age_merger + self.time_crossing: tau = tau_max else: - tau = tau_ref / self.eta_turb + tau = tau_ref / self.beta_turb return tau @property |