darkhistory.physics.elec_heating_engloss_rate¶
- darkhistory.physics.elec_heating_engloss_rate(eng, xe, rs, nBscale=1.0)¶
Electron energy loss rate of electrons due to Coulomb heating in eV s-1.
- Parameters:
- engndarray
Abscissa of electron kinetic energy.
- xefloat
The free electron fraction.
- rsfloat
The redshift.
- nBscalefloat
The baryon number density scaling factor.
- Returns:
- ndarray
The energy loss rate due to heating (positive).
Notes
See 0910.4410 for the expression. The units have e^2/r being in units of energy, so to convert to SI, we insert 1/(4*pi*eps_0)^2.