Chandra and XMM-Newton observations of the exceptional pulsar PSR B0628-28
arXiv:astro-ph/0505461 · doi:10.1086/444360
Abstract
PSR B0628-28 is a radio pulsar which was first detected in the X-ray band by ROSAT and then later observed with Chandra and XMM-Newton. The Chandra observation yielded an X-ray luminosity two orders of magnitude higher than what is expected for spin-powered pulsars, also there were no pulsations detected. The XMM-Newton observation, however, reveals pulsations at the expected radio period, P=1.244 s. The simultaneously analyzed spectra also gives a luminosity (in cgs) Log Lx=30.34, which is ~350 times greater than what would be expected from the correlation between Lx-Edot.
arXiv comment13 pages, 4 figures, to be published in ApJL
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