Possible explanation of the gamma-ray light curve and time variability in Cygnus X-3

Details Possible explanation of the gamma-ray light curve and time variability in Cygnus X-3 Possible explanation of the gamma-ray light curve and time variability in Cygnus X-3

Jul 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987natur.328..136p&link_type=abstract

Nature (ISSN 0028-0836), vol. 328, July 9, 1987, p. 136-139. NSF-supported research.

Astronomy and Astrophysics

Astronomy

11

Binary Stars, Gamma Ray Astronomy, Light Curve, Stellar Radiation, X Ray Sources, Companion Stars, Dwarf Stars, Main Sequence Stars, Particle Trajectories, Protons

Scientific paper

The application of the accretion disk corona model of White and Holt (1982) to the very-high-energy and ultrahigh-energy gamma rays that have been observed from Cyg X-3 (predominantly in two distinct regions of orbital phase) is studied. In this model, two bulges in the outer rim of the accretion disk are required to fit the observed X-ray light curve, and it is found that these could provide target material for the production of the observed gamma rays. It is shown also that magnetic steering effects may be inevitable in Cyg X-3 and may lead to a natural explanation for the observed variability in flux and phase of gamma-ray emission.

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