Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...322..838p&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 322, Nov. 15, 1987, p. 838-841. NSF-supported research.
Astronomy and Astrophysics
Astronomy
27
Absorption Spectra, Astronomical Models, Gamma Ray Astronomy, Wave Propagation, X Ray Binaries, Cygnus Constellation, Infrared Radiation, Thermal Plasmas
Scientific paper
Very high energy gamma rays have been observed from the directions of several X-ray binaries. Using Cygnus X-3 as an example, consideration is given to the important issues of the absorption of the high-energy radiation on the optical and infrared light at source. Many models of this source have been proposed to explain the modulation of the X-ray and IR emission of Cygnus X-3. Such models are examined from the viewpoint of the propagation of high-energy gamma rays and, it is concluded that the interactions of high-energy gamma rays on the thermal radiation must play a significant role in the modulation of the observed fluxes. The detection of high-energy gamma-ray radiation from Cygnus X-3 restricts the dimensions and the temperatures of the hot plasma at and around the system, and of the stellar companion.
Protheroe Raymond J.
Stanev Todor
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