Volume 433, Number 2, April II 2005
|Page(s)||635 - 639|
|Section||Stellar structure and evolution|
|Published online||22 March 2005|
A serendipitous XMM-Newton observation of the intermediate polar WX Pyx*
High Energy Astrophysics Division, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, USA e-mail: email@example.com
Accepted: 8 December 2004
We briefly describe a serendipitous observation of the little-studied intermediate polar WX Pyx using XMM-Newton. The X-ray spin period is 1557.3 s, confirming the optical period published in 1996. An orbital period of ~5.54 h is inferred from the separation of the spin-orbit sidelobe components. The soft and hard band spin-folded light curves are roughly sinusoidal in shape. The best-fit spectrum is consistent with a bremsstrahlung temperature of ~18 keV. An upper limit of ~300 eV is assigned to the presence of Fe line emission. WX Pyx lies near TX and TV Col in the plane.
Key words: X-rays: individuals: WX Pyx / X-rays: binaries / stars: novae, cataclysmic variables
© ESO, 2005
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