Optical CCD photometry and Rosat X-ray spectral analysis of the shortest period CV EI Psc (1RXS J232953.9+062814)

Goek F., Guen G. I., Aktekin E., SEZER A., Altan M.

NEW ASTRONOMY, vol.14, no.2, pp.160-165, 2009 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 14 Issue: 2
  • Publication Date: 2009
  • Doi Number: 10.1016/j.newast.2008.07.003
  • Journal Name: NEW ASTRONOMY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.160-165
  • Keywords: Close binary stars, Cataclysmic variables, Dwarf novae, Accretion, Accretion discs, X-ray spectra, Mass accretion rate, EI Psc, CATACLYSMIC VARIABLES, DWARF NOVAE, EMISSION, SECONDARIES, EVOLUTION
  • Akdeniz University Affiliated: Yes

Abstract

We present here the optical observations of EI Psc (1RXS J232953.9 + 062814) through Turkish National Observatory (TUG) with RTT150 cm Russian-Turkish joint telescope and its X-ray observation using the ROSAT archival data. Our optical observations reveal a period of 0.0408 days (58.75 min) which is rather different from its early value of 0.046 days (66.24 min) as reported by [Schmeer, P., 2001. vsnet-alert6830, ]. Also possible periodicities as well as any QPOs are studied without having any clear indication of it. Archival ROSAT RASS data are also analyzed for its X-ray spectra.