Susan Stepney, Paul W. Guilbert.
Numerical fits to important rates in high temperature astrophysical plasmas.

Monthly Notices of the Royal Astronomical Society , 204:1269-1277, 1983.

Summary:

We give simple but accurate numerical fits to various two-body rates in relativistic thermal plasmas, in the temperature range kT e ~ 50 keV--1 MeV. The processes we discuss are bremsstrahlung, Coulomb heating and electron-positron pair production and annihilation. In particular we present a fit to the thermal electron-electron bremsstrahlung spectrum which is accurate to better than 5 per cent. We also include the results of some other workers, for completeness. Our results are suitable for semi-analytic or computer modelling of hot plasmas.

@journal(SS-MNRAS-204,
  author = "Susan Stepney and Paul W. Guilbert",
  title = "Numerical fits to important rates in high temperature 
           astrophysical plasmas",
  journal = "Monthly Notices of the Royal Astronomical Society",
  volume = 204,
  pages = "1269--1277",
  year = 1983
)