Correlation between X-ray and high energy gamma-ray emission from Cygnus X-3

Details Correlation between X-ray and high energy gamma-ray emission from Cygnus X-3 Correlation between X-ray and high energy gamma-ray emission from Cygnus X-3

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a...104l...4w&link_type=abstract

Astronomy and Astrophysics, vol. 104, no. 1, Dec. 1981, p. L4-L6. Research supported by the Smithsonian Scholarly Studies Fund

Astronomy and Astrophysics

Astronomy

16

Binary Stars, Emission Spectra, Gamma Ray Astronomy, X Ray Sources, Cos-B Satellite, European Space Programs, Light Curve, Periodic Variations, Radiant Flux Density, X Ray Astronomy

Scientific paper

Observations of Cygnus X-3 with the X-ray detector on board the COS-B satellite showed a change in flux and in shape of the 4.8 hour periodic variation from late May through June, 1980, when compared with observations earlier in May. The overall flux increased by a factor of about three over 40 days of observation, and the mean flux in the second half of the observations exceeded that in any previous COS-B record. This change correlated with the peak in high energy (greater than 2 x 10 to the 12th eV) gamma ray emission at the same epoch. This correlation is discussed in terms of its potential for explaining the underlying source mechanism of these phenomena.

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