Globular clusters as gamma ray sources

Bhatia, V. B. ; Mishra, S. ; Panchapakesan, N. (1992) Globular clusters as gamma ray sources Journal of Astrophysics and Astronomy, 13 . pp. 287-291. ISSN 0250-6335

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Official URL: http://www.ias.ac.in/jarch/jaa/13/287-291.pdf

Abstract

There are indications now that globular clusters contain a large number of low magnetic field millisecond pulsars. Since millisecond pulsars are expected to emit γ -rays due to curvature radiation, it is likely that globular clusters will themselves be sources of γ -rays bright enough to be detectable by present day instruments. Using the expression derived by Scharlemann, Arons & Fawley (1978) of the energy acquired by the electrons moving along the open magnetic field lines of the pulsars we have calculated the likely luminosity of γ -rays from globular clusters. We discuss our results in the light of the calculations reported in the literature based on some of the other models.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Globular Clusters; Pulsars; Resurrected Neutron Stars; γ-Rays
ID Code:67139
Deposited On:29 Oct 2011 03:41
Last Modified:18 May 2016 14:23

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