We conducted a spectroscopic and photometric study of SDSS J075653.11+085831. X-ray observations were also attempted. We determined the orbital period of this binary system to be 3.29 hr. It is a deep eclipsing system, whose spectra shows mostly single-peaked Balmer emission lines and a rather intense He II line. There is also the presence of faint (often double-peaked) He I emission lines as well as several absorption lines, Mg I being the most prominent. All of these features point towards the affiliation of this object with the growing number of SW~Sex-type objects. We developed a phenomenological model of an SW~Sex system to reproduce the observed photometric and spectral features.
@article{arxiv.1401.0635,
title = {On the SW Sex-Type Eclipsing Cataclysmic Variable SDSS0756+0858},
author = {Gagik Tovmassian and Mercedes Stephania Hernandez and Diego Gonzalez-Buitrago and Sergey Zharikov and Maria Teresa García-Díaz},
journal= {arXiv preprint arXiv:1401.0635},
year = {2015}
}
Comments
14 pages, 8 figures. Accepted for publication in Astron. J. (10 Dec 2013)