X-ray confirmation of the new intermediate polar RX J1238–38 |
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Authors: | Coel Hellier A P Beardmore & David A H Buckley |
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Institution: | Department of Physics, Keele University, Keele, Staffordshire, ST5 5BG,;South African Astronomical Observatory, PO Box 9, Observatory 7935, Cape Town, South Africa |
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Abstract: | By finding a 2147-s X-ray pulsation in the recently identified ROSAT source RX 1238–38 we confirm that it is a member of the intermediate polar class of cataclysmic variable. We analyse the spectral changes over the white dwarf spin cycle, but are unable to distinguish between competing mechanisms for the cause of the pulsation. RX 1238–38 has an anomalous ratio of spin period to orbital period, similar to that of EX Hya. |
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Keywords: | accretion accretion discs binaries: close stars: individual: RX J1238–38 novae cataclysmic variables X-rays: stars |
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