Document Type

Article

Publication Date

2011

Abstract

Currently three isolated radio pulsars and one binary radio pulsar with no evidence of any previous recycling are known in 97 surveyed Galactic globular clusters (GCs). As pointed out by Lyne et al., the presence of these pulsars cannot be explained by core-collapse supernovae, as commonly assumed for their counterparts in the Galactic disk. We apply a Bayesian analysis to the results from surveys for radio pulsars in GCs and find the number of potentially observable non-recycled radio pulsars present in all clusters to be more » - 0.6. In this case, the potentially observable population of such young pulsars is 447{sup +1420}{sub -399} (the error bars give a 95% confidence interval) and their birthrate is 0.012{sup +0.037}{sub -0.010} pulsars century{sup -1}. The most likely creation scenario to explain these pulsars is the electron capture supernova of an OMgNe white dwarf.« less

Source Citation

Boyles, J., Lorimer, D. R., Turk, P. J., Mnatsakanov, R., Lynch, R. S., Ransom, S. M.,… Belczynski, K. (2011). Young Radio Pulsars In Galactic Globular Clusters. The Astrophysical Journal, 742(1), 51. http://doi.org/10.1088/0004-637X/742/1/51

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