Astronomy and Astrophysics – Astronomy
Scientific paper
May 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982aipc...83..109m&link_type=abstract
IN: The galactic center; Proceedings of the Workshop, Pasadena, CA, January 7, 8, 1982 (A83-40676 19-90). New York, American Ins
Astronomy and Astrophysics
Astronomy
30
Galactic Nuclei, Gamma Ray Astronomy, Milky Way Galaxy, X Ray Astronomy, Continuous Spectra, Heao 1, Luminosity, X Ray Spectra
Scientific paper
A review of observations of the galactic nucleus to date in the X ray and gamma ray regions is presented. Attention is given to data in the 1-10 keV, 10-100 keV, 100 keV to 10 MeV, and 10 MeV to 1 GeV ranges. It is shown that the galactic nucleus is as yet unresolvable from the other galactic center at energies above 4.5 keV, while large variations in the observed flux in the 100 keV-1 MeV range indicate a single source as the dominant emitter. An X ray source is concluded to be contained in the nucleus, which features a constant luminosity of 1.5 x 10 to the 35th erg/sec in the 0.5-4.5 keV band. A hard and bright source is located near the nucleus, whose emitter source exists at a temperature of about 10 billion K with a luminosity 30 times that of the Crab Nebula.
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