Gamma-ray evidence for a stellar-mass black hole near the Galactic center

Details Gamma-ray evidence for a stellar-mass black hole near the Galactic center Gamma-ray evidence for a stellar-mass black hole near the Galactic center

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989nyasa.571..433r&link_type=abstract

(NASA, NSF, Texas Academy of Science, et al., Texas Symposium on Relativistic Astrophysics, 14th, Dallas, TX, Dec. 11-16, 1988)

Astronomy and Astrophysics

Astronomy

2

Black Holes (Astronomy), Galactic Cosmic Rays, Gamma Ray Astronomy, Milky Way Galaxy, Stellar Mass Ejection, Galactic Nuclei, Line Spectra, Supernovae

Scientific paper

An analysis of the time variability of the observed 511-keV line emission from the direction of the Galactic center and the correlation of its variations in the continuum emission above 511 keV from the same direction suggest the existence of a compact object at or near the Galactic center. A possible mechanism of the observed positron annihilation is consistent with a compact interaction region of the order of 10 to the 8th cm. A black hole of several hundred solar masses is favored as a candidate for this compact object; arguments in support of this suggestion are presented.

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