COS B observation of high-energy gamma radiation from 3C273

Details COS B observation of high-energy gamma radiation from 3C273 COS B observation of high-energy gamma radiation from 3C273

Sep 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978natur.275..298s&link_type=abstract

Nature, vol. 275, Sept. 28, 1978, p. 298.

Astronomy and Astrophysics

Astronomy

147

Cos-B Satellite, Gamma Ray Astronomy, High Energy Interactions, Stellar Luminosity, Cross Correlation, European Space Agency, Luminous Intensity, Quasars, Satellite Observation, Stellar Spectra

Scientific paper

The discovery of a high-energy gamma-ray source is reported, and reasons for its identification with 3C 273 are presented. If this identification is correct, the gamma-ray luminosity of 3C 273 in the energy range 50-500 MeV is 2 times 10 to the 46th power erg/s for H equals 60 km/(sec Mpc). The cross-correlation method used to analyze the data involves correlation of the frequency distribution of arrival directions of gamma rays with the distribution expected for a point source. A major portion of the energy radiated by 3C 273 is found to be in the form of gamma rays.

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