Observation of gamma rays with a 4.8 hour periodicity from CYG X-3

Details Observation of gamma rays with a 4.8 hour periodicity from CYG X-3 Observation of gamma rays with a 4.8 hour periodicity from CYG X-3

Sep 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976stin...7633122l&link_type=abstract

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Physics

Extraterrestrial Radiation, Gamma Rays, Energy Spectra, Infrared Radiation, Pulsars, Sas-2, Spaceborne Telescopes, X Rays

Scientific paper

Energetic (E35 MeV) Gamma rays were observed from Cyg X-3 with the SAS-2 Gamma ray telescope. They are modulated at the 4.8h period observed in the X-ray and infrared regions, and within the statistical error are in phase with this emission. The flux above 100 MeV has an average value of (4.4 + or - 1.1)x 10 to the -6 power/sq cm/sec. If the distance to Cyg X-3 is 10 kpcs, this flux implies a luminosity of more than 10 to the 37th power ergs/s if the radiation is isotropic and about 10 to the 36th power ergs/s if the radiation is restricted to a cone of one steradian, as it might be in a pulsar.

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