On the periodic gamma-ray emission of Cygnus X-3

Details On the periodic gamma-ray emission of Cygnus X-3 On the periodic gamma-ray emission of Cygnus X-3

Jun 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pazh...10..358g&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 10, May 1984, p. 358-362) Soviet Astronomy Letters (ISSN 0360-0327), vol. 10, May-June

Astronomy and Astrophysics

Astronomy

1

Binary Stars, Gamma Ray Astronomy, X Ray Sources, Electromagnetic Pulses, Light Curve, Relativistic Effects

Scientific paper

The periodic gamma-ray radiation with energy 108 and 1012eV from Cyg X-3 is analysed. It is shown that position of gamma-ray pulse at the light curve for the period P1 = 4.8 h (phase φ) depends on the interval of phases ψ of the period P2 = 34.1 d, i.e. the pulse appears near the phase φ = 0.2 if ψ = 0 - 0.5 and near φ = 0.6 if ψ = 0.5 - 1.0. This dependence can be explained by relativistic precession of the orbit of the binary, the mass of which is ≡103 M_sun;.

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