XMM-Newton observations of the polars EV UMa, RX J1002-19 and RX J1007-20

Abstract

We present XMM-Newton data of three strongly magnetic cataclysmic variables (polars) EV UMa, RX J1002-19 and RX J1007-20. These include the polar with the shortest orbital period (EV UMa) and the polar with one of the highest magnetic field strengths (RX J1007-20). They exhibit a range of X-ray spectral characteristics which are consistent with their known magnetic field strength. We find that two of the systems show evidence for an absorption dip in soft X-rays. Their profiles are well defined, implying that the stream is highly collimated. We determine the mass transfer rate for the two systems with known distances. We determine that the mass of the white dwarf in EV UMa and RX J1007-20 is ~1Msun while in RX J1002-19 it is closer to ~0.5Msun.

arXiv commentAccepted for publication in MNRAS, 9 pages

References in corpus (8)

• The European Photon Imaging Camera on XMM-Newton: The MOS Cameras
• The XMM-Newton Optical/UV Monitor Telescope
• Effects of Gravity on the Structure of Postshock Accretion Flows in Magnetic Cataclysmic Variables
• Determining the mass of the accreting white dwarf in magnetic CVs using data
• First XMM-Newton observations of strongly magnetic cataclysmic variables - II. Timing studies of DP Leo and WW Hor
• XMM-Newton observations of the asynchronous polar BY Cam
• First XMM-Newton observations of strongly magnetic cataclysmic variables I: spectral studies of DP Leo and WW Hor
• First X-ray observations of the polar CE Gru

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