Observations of the 4.8-hour variations of Cygnus X-3 above 7 keV from the OSO-7

Details Observations of the 4.8-hour variations of Cygnus X-3 above 7 keV from the OSO-7 Observations of the 4.8-hour variations of Cygnus X-3 above 7 keV from the OSO-7

Sep 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974apj...192..691u&link_type=abstract

Astrophysical Journal, vol. 192, Sept. 15, 1974, pt. 1, p. 691-695.

Astronomy and Astrophysics

Astronomy

17

Radiant Flux Density, Satellite Observation, Spaceborne Astronomy, X Ray Sources, X Ray Spectra, Energy Spectra, Oso-7, Phase Shift, X Ray Telescopes

Scientific paper

Results of observations made (during the period from June 30 to July 5, 1972) of Cyg X-3 with the UCSD OSO-7 X-ray telescope in the range from about 7 to 100 keV. The 4.8-hour variation was detected in the 6.6-21.2 keV range, and the ratio of high intensity to mean intensity was 1.52 plus or minus 0.16. In the 21.2-97.8 keV range no 4.8-hour variation in phase with the 6.6-21.2 keV variation could be detected, and the ratio at the phase of high intensity to the mean intensity was 0.6 plus or minus 0.4.

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