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

C. Y. Hui, K. A. Seo, C. P. Hu, L. C.C. Lin, Y. Chou

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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.

Original languageEnglish
Article number109
JournalAstrophysical Journal
Volume759
Issue number2
DOIs
StatePublished - 10 Nov 2012

Keywords

  • stars: individual (XGPS-I J183251-100106, 2XMM J183251.4-100106)
  • X-rays: stars

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