Astronomy Letters

, Volume 37, Issue 12, pp 858–863 | Cite as

New cataclysmic variable 1RXS J073346.0+261933 in Gemini

  • D. V. DenisenkoEmail author
  • A. J. Drake
  • S. G. Djorgovski
  • T. V. Kryachko
  • A. V. Samokhvalov
  • A. Yu. Tkachenko


In the course of our search for the optical identifications of ROSAT X-ray sources, we have found a highly variable object with a very unusual behavior on long time scales, rare color indices, and a high X-ray-to-optical flux ratio. We present the archival light curve from the Catalina Sky Survey, optical spectroscopy from RTT150, and time-resolved photometry from the Astrotel-Caucasus telescope. The object appears to be a magnetic cataclysmic variable (a polar) with an orbital period P = 3.20 h.


stars cataclysmic variables X-ray sources 


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  1. 1.
    M. S. Bessell and J. M. Brett, Publ. Astron. Soc. Pacific 100, 1134 (1988).ADSCrossRefGoogle Scholar
  2. 2.
    D. V. Denisenko and K. V. Sokolovsky, Astron. Letters 37, 91 (2011); arXiv:1007.1798.ADSCrossRefGoogle Scholar
  3. 3.
    A. J. Drake, S. G. Djorgovski, A. Mahabal, et al., Astrophys. J. 696, 870 (2009).ADSCrossRefGoogle Scholar
  4. 4.
    S. Kafka, C. Tappert, and R. K. Honeycutt, MNRAS 403, 755 (2010).ADSCrossRefGoogle Scholar
  5. 5.
    A. Rebassa-Mansergas, B.T. Gansicke, M.R. Schreiber, et al., MNRAS 402, 620 (2010).ADSCrossRefGoogle Scholar
  6. 6.
    P. Szkody, S. Anderson, M. Agueros, et al., Astron. J. 123, 430 (2002).ADSCrossRefGoogle Scholar
  7. 7.
    P. Szkody, A. Henden, M. Agueros, et al., Astron. J. 131, 973 (2004).ADSCrossRefGoogle Scholar
  8. 8.
    B. J. Teegarden, S. H. Pravdo, M. Hicks, et al., Astrophys. J. 589, L51 (2003).ADSCrossRefGoogle Scholar
  9. 9.
    G. Tovmassian, S. Zharikov, C. Chavez, et al., arXiv:1009.5813 (2010).Google Scholar
  10. 10.
    W. Voges, B. Aschenbach, T. Boller, et al., Astron. Astrophys. 349, 389 (1999).ADSGoogle Scholar

Copyright information

© Pleiades Publishing, Ltd. 2011

Authors and Affiliations

  • D. V. Denisenko
    • 1
    Email author
  • A. J. Drake
    • 2
  • S. G. Djorgovski
    • 2
  • T. V. Kryachko
    • 3
  • A. V. Samokhvalov
    • 4
  • A. Yu. Tkachenko
    • 1
  1. 1.Space Research InstituteRussian Academy of SciencesMoscowRussia
  2. 2.California Institute of TechnologyPasadenaUSA
  3. 3.Astrotel-Caucasus ObservatoryKarachaj-CherkessianRussia
  4. 4.SurgutRussia

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