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26 April 2024 |
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XMM-Newton sets the record straight: No X-ray emission detected from PSR J0631+1036 | | J. Kennea
; F. Cordova
; S. Chatterjee
; J. Cordes
; C. Ho
; R. Much
; T. Oosterbroek
; A. Parmar
; | | Date: |
4 Feb 2002 | | Subject: | astro-ph | | Affiliation: | UCSB), F. Cordova (UCSB), S. Chatterjee (Cornell), J. Cordes (Cornell), C. Ho (LANL), R. Much (ESTEC), T. Oosterbroek (ESTEC), A. Parmar (ESTEC | | Abstract: | The pulsar PSR J0631+1036 was discovered during a radio search of Einstein X-ray source error circles. A detection of a 288ms sinusoidal modulation in the ASCA lightcurve, the same period as the radio pulsar, appeared to confirm the association of the X-ray source and the pulsar. Its X-ray spectrum was said to be similar to that of middle aged gamma-ray pulsars such as Geminga. However, an XMM-Newton observation of the PSR J0631+1035 field, along with a re-analysis of VLA data confirming the timing position of the pulsar, show a 75’’ discrepancy in location of the X-ray source and the pulsar, and therefore these cannot be the same object. The X-ray source appears to be the counterpart of an A0 star, detected by the XMM-Newton Optical Monitor. No 288ms period was detected from either the area around the pulsar or the bright X-ray source. The upper limit on the X-ray luminosity with relation to the empirically observed correlation between radio measured dE/dt and X-ray luminosity is discussed. | | Source: | arXiv, astro-ph/0202055 | | Services: | Forum | Review | PDF | Favorites | |
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