* Astronomy

Title: Detection of X-ray periodicity from a new eclipsing polar candidate XGPS-I J183251-100106
Authors: C. Y. Hui (1), K. A. Seo (1), C. P. Hu (2), L. C. C. Lin (3), Y. Chou (2) ((1) Chungnam National University, (2) National Central University, (3) China Medical University)

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-modelled with a thermal bremsstrahlung of a temperature kT~50 keV. Both X-ray spectral and temporal behaviour of this system suggest it as a eclipsing cataclysmic variable of AM Herculis (or polar) type.

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