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23 April 2024 |
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How rapidly do neutron stars spin at birth? | | Roberto Soria
; Rosalba Perna
; David Pooley
; Luigi Stella
; | | Date: |
21 Nov 2008 | | Abstract: | We have studied the X-ray properties of ageing historical core-collapse
supernovae in nearby galaxies, using archival data from Chandra, XMM-Newton and
Swift. We found possible evidence of a young X-ray pulsar in SN 1968D and in
few other sources, but none more luminous than ~ a few 10^{37} erg/s. We
compared the observational limits to the X-ray pulsar luminosity distribution
with the results of Monte Carlo simulations for a range of birth parameters. We
conclude that a pulsar population dominated by periods <~ 40 ms at birth is
ruled out by the data. | | Source: | arXiv, 0811.3605 | | Services: | Forum | Review | PDF | Favorites | |
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