Journal Article

On the birthrates of Galactic neutron stars

E. F. Keane and M. Kramer

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 391, issue 4, pages 2009-2016
Published in print December 2008 | ISSN: 0035-8711
Published online December 2008 | e-ISSN: 1365-2966 | DOI:
On the birthrates of Galactic neutron stars

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In light of the recently discovered neutron star populations, we discuss the various estimates for the birthrates of these populations. We revisit the question as to whether the Galactic supernova rate can account for all of the known groups of isolated neutron stars. After reviewing the rates and population estimates, we find that if the estimates are in fact accurate, the current birthrate and population estimates are not consistent with the Galactic supernova rate. We discuss possible solutions to this problem including whether or not some of the birthrates are hugely overestimated. We also consider a possible evolutionary scenario between some of the known neutron star classes which could solve this potential birthrate problem.

Keywords: stars: neutron; pulsars: general; supernovae: general; Galaxy: stellar content

Journal Article.  7109 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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