A New Cataclysmic Variable RX J0757.0+6306: Candidate for the Shortest Period Intermediate Polar

G. H. Tovmassian; J. Greiner; P. Kroll; P. Szkody; P. A. Mason; F. -J. Zickgraf; J. Krautter; I. Thiering; A. Serrano; S. Howell; D. R. Ciardi

arXiv · astro-ph/9803234

A New Cataclysmic Variable RX J0757.0+6306: Candidate for the Shortest Period Intermediate Polar

G. H. Tovmassian·J. Greiner·P. Kroll·P. Szkody·P. A. Mason·F. -J. Zickgraf·J. Krautter·I. Thiering·A. Serrano·S. Howell·D. R. Ciardi

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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.

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G. H. Tovmassian, J. Greiner, P. Kroll, P. Szkody, P. A. Mason, F. -J. Zickgraf, J. Krautter, I. Thiering, A. Serrano, S. Howell, D. R. Ciardi. 1998-03-19. A New Cataclysmic Variable RX J0757.0+6306: Candidate for the Shortest Period Intermediate Polar. https://arxiv.org/abs/astro-ph/9803234

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