A&A 416, 437-440 (2004)
Pair production by photons in a hot Maxwellian plasmaE. Haug
Institut für Astronomie und Astrophysik, Universität Tübingen, 72076 Tübingen, Auf der Morgenstelle 10, Germany
(Received 6 October 2003 / Accepted 22 December 2003)
The production of electron-positron pairs by photons in the Coulomb field of electrons and positrons (triplet production) in hot thermal plasmas is investigated. The pair production rate for this process is calculated as a function of the photon energy and compared with the rate of photon-nucleus pair production for semirelativistic and relativistic plasma temperatures.
Key words: gamma rays: theory -- plasmas
© ESO 2004