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2010ApJ...725..985O - Astrophys. J., 725, 985-989 (2010/December-2)

XMM-Newton X-ray observation of the high-magnetic-field radio pulsar PSR J1734-3333.

OLAUSEN S.A., KASPI V.M., LYNE A.G. and KRAMER M.

Abstract (from CDS):

Using observations made with the XMM-Newton Observatory, we report the probable X-ray detection of the high-magnetic-field radio pulsar PSR J1734-3333. This pulsar has an inferred surface dipole magnetic field of B = 5.2x1013 G, just below that of one anomalous X-ray pulsar. We find that the pulsar has an absorbed 0.5-2.0 keV flux of (5-15)x10–15 erg/s/cm2 and that its X-ray luminosity LX is well below its spin-down luminosity {dot}E, with L_X<0.1 {dot}E. No pulsations were detected in these data although our derived upper limit is unconstraining. Like most of the other high-B pulsars, PSR J1734-3333 is X-ray faint with no sign of magnetar activity. We tabulate the properties of this and all other known high-B radio pulsars with measured thermal X-ray luminosities or luminosity upper limits, and speculate on a possible correlation between LX and B.