Resonant inverse Compton scattering by secondary pulsar plasma

Y. E. Lyubarskii, S. A. Petrova

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

We consider resonant inverse Compton scattering of thermal photons by secondary particles above the pulsar polar gap. At neutron star temperatures higher than 105 K the process appears to be an essential energy loss mechanism for the particles. The distribution function of the secondary plasma particles is found to be strongly affected by the scattering. It becomes two-humped implying the development of two-stream instability. The resonantly upscattered Compton photons are found to gain energy of 1-10 MeV forming an additional component in the pulsar gamma-ray spectrum. The corresponding gamma-ray flux is estimated as well.

Original languageEnglish
Pages (from-to)406-412
Number of pages7
JournalAstronomy and Astrophysics
Volume355
Issue number1
StatePublished - 1 Dec 2000
Externally publishedYes

Keywords

  • Gamma rays: theory
  • Plasmas
  • Scattering
  • Stars: pulsars: general

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