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| author | Aaron LI <aaronly.me@outlook.com> | 2017-01-16 21:10:30 +0800 |
|---|---|---|
| committer | Aaron LI <aly@aaronly.me> | 2017-06-01 16:33:40 +0800 |
| commit | 93dc96a0a6a336419b2e80b221257a8a7532019a (patch) | |
| tree | 767c4bfbeb88e9fb44ac463963f2bd735f6d45c8 /fg21sim/extragalactic/clusters/units.py | |
| parent | 912e2c8b5a37606828241e259e719bbced50989c (diff) | |
| download | fg21sim-93dc96a0a6a336419b2e80b221257a8a7532019a.tar.bz2 | |
Add clusters/emission.py: Calculate synchrotron emissivity
Calculate the synchrotron emissivity from the given electron spectrum at
specified frequency.
Add the electron charge to units.Constants
Diffstat (limited to 'fg21sim/extragalactic/clusters/units.py')
| -rw-r--r-- | fg21sim/extragalactic/clusters/units.py | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fg21sim/extragalactic/clusters/units.py b/fg21sim/extragalactic/clusters/units.py index 01891fa..a7e4ef5 100644 --- a/fg21sim/extragalactic/clusters/units.py +++ b/fg21sim/extragalactic/clusters/units.py @@ -30,10 +30,13 @@ class UnitConversions: Hold the conversion relations directly to avoid repeated/unnecessary calculations. """ + # Mass Msun2g = au.solMass.to(au.g) g2Msun = au.g.to(au.solMass) + # Time Gyr2s = au.Gyr.to(au.s) s2Gyr = au.s.to(au.Gyr) + # Length kpc2cm = au.kpc.to(au.cm) cm2kpc = au.cm.to(au.kpc) Mpc2cm = au.Mpc.to(au.cm) @@ -43,6 +46,7 @@ class UnitConversions: kpc2km = au.kpc.to(au.km) km2kpc = au.km.to(au.kpc) km2cm = au.km.to(au.cm) + # Energy keV2erg = au.keV.to(au.erg) @@ -60,6 +64,8 @@ class Constants: u = ac.u.cgs.value # [g] # Gravitational constant G = ac.G.cgs.value # [cm^3/g/s^2] + # Electron charge + e = ac.e.gauss.value # [Fr] = [esu] # Mean molecular weight # Ref.: Ettori et al, 2013, Space Science Review, 177, 119-154, Eq.(6) |