On the nature of the globular cluster X-ray sources

Details On the nature of the globular cluster X-ray sources On the nature of the globular cluster X-ray sources

Sep 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975apj...200l.131s&link_type=abstract

Astrophysical Journal, vol. 200, Sept. 15, 1975, pt. 2, p. L131-L135.

Astronomy and Astrophysics

Astronomy

113

Black Holes (Astronomy), Globular Clusters, Stellar Evolution, X Ray Sources, Capture Effect, Nuclear Reactions, Stellar Mass

Scientific paper

It is suggested that the globular cluster X-ray sources can be interpreted in terms of mass shed by evolving postmain-sequence stars in the central regions of the globular cluster and accreting onto a massive (approximately 100-1000 solar masses) central black hole. Tentative indications that support this hypothesis include the high central escape velocities and the distribution of metallicities among the four globular clusters containing luminous X-ray sources. We argue that these X-ray sources cannot be explained as a consequence of the close capture of a nuclear burning star by a compact stellar remnant.

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