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XMM-Newton observations of PSR B1259–63 near the 2004 periastron passage

  • M. Chernyakova (a1) (a2), A. Lutovinov (a3), J. Rodriguez (a1) (a4) and S. Johnston (a5)

Abstract

We present here the results of new XMM-Newton observations of the PSR B1259–63 system during the beginning of 2004, as the pulsar approaches the disc of the Be star. We combine these results with earlier X-ray data from BeppoSAX, XMM-Newton, and ASCA. The X-ray light curve looks similar to the radio light curve with a rapid increase in the flux around the time of the disc crossing. This supports a model in which the X-ray emission from the system is due to inverse Compton scattering of the pulsar wind relativistic particles with moderate Lorentz factor $\gamma \sim 10$–100 on the Be star soft photons.

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Keywords

XMM-Newton observations of PSR B1259–63 near the 2004 periastron passage

  • M. Chernyakova (a1) (a2), A. Lutovinov (a3), J. Rodriguez (a1) (a4) and S. Johnston (a5)

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