SciPy

darkhistory.physics.coll_exc_xsec

darkhistory.physics.coll_exc_xsec(eng, species=None)

e-e collisional excitation cross section in cm2.

See 0906.1197.

Parameters:
eng : float or ndarray

Abscissa of kinetic energies.

species : {‘HI’, ‘HeI’, ‘HeII’}

Species of interest.

Returns:
float or ndarray

e-e collisional excitation cross section.

Previous topic

darkhistory.physics.photo_ion_xsec

Next topic

darkhistory.physics.coll_ion_sec_elec_spec

This Page