A New Cataclysmic Variable RX J0757.0+6306: Candidate for the Shortest Period Intermediate Polar
Astrophysics
2007-05-23 v1
Abstract
A new cataclysmic variable is identified as the optical counterpart of the faint and hard X-ray source RX J0757.0+6306 discovered during the ROSAT all-sky survey. Strong double-peaked emission lines bear evidence of an accretion disc via an S-wave which varies with a period of 81 +/- 5 min. We identify this period as the orbital period of the binary system. CCD photometry reveals an additional period of 8.52 +/- 0.15 min. which was stable over four nights. We suggest that RX J0757.0+6306 is possibly an intermediate polar, but we cannot exclude the possibility that it is a member of the SU UMa group of dwarf novae.
Keywords
Cite
@article{arxiv.astro-ph/9803234,
title = {A New Cataclysmic Variable RX J0757.0+6306: Candidate for the Shortest Period Intermediate Polar},
author = {G. H. Tovmassian and J. Greiner and P. Kroll and P. Szkody and P. A. Mason and F. -J. Zickgraf and J. Krautter and I. Thiering and A. Serrano and S. Howell and D. R. Ciardi},
journal= {arXiv preprint arXiv:astro-ph/9803234},
year = {2007}
}
Comments
8 pages (LATEX) + 7 ps-figures), l-aa style, accepted for publ. in Astron. Astrophys.; [email protected]