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EVOLUTION OF ISOLATED NEUTRON STARS IN GLOBULAR CLUSTERS: NUMBER OF ACCRETORS

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Abstract:

With a simple model from the point of view of population synthesis we try to verify an interesting suggestion made by Pfahl and Rappaport (2001) that dim sources in globular clusters (GCs) can be isolated accreting neutron stars (NSs). Simple estimates show, that we can expect about 0.5-1 accreting isolated NS per typical GC with <$>M = 10^{5}\,M_\odot<$> in correspondence with observations. Properties of old accreting isolated NSs in GCs are briefly discussed. We suggest that accreting NSs in GCs experienced significant magnetic field decay.

Keywords: Accretion; Globular clusters; Neutron stars

Document Type: Research Article

DOI: http://dx.doi.org/10.1080/10556790215593

Affiliations: Sternberg Astronomical Institute, Universitetskij pr. 13, Moscow, 119992, Russia

Publication date: January 1, 2002

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