Cyg X-3: γ rays from a magnetic accretion disk

P. Mészáros, F. Meyer, J. E. Pringle

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THE recent observation1 of ∼ 100-MeV γ rays from Cygnus X-3, which have a comparable luminosity to the X-ray emission and which vary in phase with the 4.8-h period displayed by the X-ray and infrared emission, has been taken2, 3 as support for the suggestion 4 that the X-ray emission is produced by a very young pulsar in a short period binary system. In this letter, we show that the observed γ-ray luminosity can be produced by an accretion disk around a non-magnetic neutron star or low-mass black hole, in a magnetised corona which accelerates relativistic electrons that decay by inverse Compton losses modified through the photon-photon and pair-annihilation processes.

Original languageEnglish (US)
Pages (from-to)420-421
Number of pages2
Issue number5619
StatePublished - Dec 1 1977

All Science Journal Classification (ASJC) codes

  • General


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