Evolution of isolated neutron stars in globular clusters: number of Accretors

Abstract

With a simple model from the point of view of population synthesis we try to verify an interesting suggestion made by Pfahl & 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.

6 pages, no figures. Submitted to Astronomical and Astrophysical Transactions (style included)

References in corpus (4)

• A census with ROSAT of low-luminosity X-ray sources in globular clusters
• Solar activity around AD 775 from aurorae and radiocarbon
• Magnetically Accreting Isolated Old Neutron Stars
• Period distribution of old accreting isolated neutron stars

Cited by in corpus (2)

• Relativistic Binaries in Globular Clusters
• Relativistic Binaries in Globular Clusters