Confirmation of 1RXS J165443.5–191620 as an intermediate polar and its orbital and spin periods

  title={Confirmation of 1RXS J165443.5–191620 as an intermediate polar and its orbital and spin periods},
  author={Simone Scaringi and S. D. Connolly and Joseph Otis Patterson and John R. Thorstensen and Helena Uthas and Christian Knigge and Laura Vican and Berto Monard and Robert D. Rea and Tom Krajci and Simon Lowther and Gordon Myers and Greg Bolt and Andrea Dieball and Paul J. Groot},
  journal={Astronomy and Astrophysics},
Aims. We investigate the physical nature of the X-ray emitting source 1RXS J165443.5−191620 through optical photometry and time-resolved spectroscopy. Methods. Optical photometry is obtained from a variety of telescopes all over the world spanning ≈27 days. Additionally, timeresolved spectroscopy is obtained from the MDM observatory. Results. The optical photometry clearly displays modulations consistent with those observed in magnetic cataclysmic variables: a low-frequency signal interpreted… Expand

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