Detection of X-ray periodicity from a new eclipsing polar candidate XGPS-I J183251-100106
arXiv:1209.1169 · doi:10.1088/0004-637X/759/2/109
Abstract
We report the results from a detailed analysis of an archival XMM-Newton observation of the X-ray source XGPS-I J183251-100106, which has been suggested as a promising magnetic cataclysmic variable candidate based on its optical properties. A single periodic signal of 1.5 hrs is detected from all EPIC cameras on board XMM-Newton. The phase-averaged X-ray spectrum can be well-modeled with a thermal bremsstrahlung of a temperature kT~50 keV. Both X-ray spectral and temporal behavior of this system suggest it as a eclipsing cataclysmic variable of AM Herculis (or polar) type.
15 pages, 6 figures, accepted for publication in ApJ
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