Detection of X-ray periodicity from a new eclipsing polar candidate XGPS-I J183251-100106

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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 (CV) candidate based on its optical properties. A single periodic signal of 1.5 hr is detected from all EPIC instruments on board XMM-Newton. The phase-averaged X-ray spectrum can be well modeled with a thermal bremsstrahlung temperature of kT 50 keV. Both the X-ray spectral and temporal behavior of this system suggest that it is an eclipsing CV of the AM Herculis (or polar) type. © 2012. The American Astronomical Society. All rights reserved.

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Hui, C. Y., Seo, K. A., Hu, C. P., Lin, L. C. C., & Chou, Y. (2012). Detection of X-ray periodicity from a new eclipsing polar candidate XGPS-I J183251-100106. Astrophysical Journal, 759(2). https://doi.org/10.1088/0004-637X/759/2/109

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