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Astron. Astrophys. 325, 866-870 (1997)

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The pair production spectrum from photon-photon annihilation

M. Böttcher and R. Schlickeiser

Max-Planck-Institut für Radioastronomie, Postfach 20 24, D-53010 Bonn, Germany

Received 18 November 1996 / Accepted 20 March 1997

Abstract

We present the first completely analytical computation of the full differential [FORMULA] - [FORMULA] pair production rate from compact radiation fields, exact to 2nd order QED, and use this result to investigate the validity of previously known approximations.

Key words: plasmas – radiation mechanisms: non-thermal – gamma-rays: theory

Send offprint requests to: M. Böttcher

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© European Southern Observatory (ESO) 1997

Online publication: April 28, 1998

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