Electron-positron bremsstrahlung in mildly relativistic thermal plasmas

Details Electron-positron bremsstrahlung in mildly relativistic thermal plasmas Electron-positron bremsstrahlung in mildly relativistic thermal plasmas

Jul 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...148..386h&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 148, no. 2, July 1985, p. 386-390.

Astronomy and Astrophysics

Astrophysics

20

Annihilation Reactions, Bremsstrahlung, Electron-Positron Plasmas, Pair Production, Relativistic Plasmas, Thermal Plasmas, X Ray Spectra, Coulomb Collisions, Electron Energy, Electrons, Maxwell-Boltzmann Density Function, Positron Annihilation, Thermodynamic Equilibrium

Scientific paper

X-ray spectra and the total rate of energy loss due to electron-positron (e-e+) bremsstrahlung in a mildly relativistic thermal plasma are calculated using the differential cross section of e-e+ bremsstrahlung exact to lowest-order perturbation theory. The results are compared with the nonrelativistic and extreme-relativistic approximations available and with the emissivities of a plasma due to electron-proton and electron-electron bremsstrahlung. For equal particle densities the e-e+ process is found to be the dominant emission mechanism in the whole temperature range.

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