A newly-discovered cataclysmic binary near the ROSAT galactic plane source RX J1910.8+2856

Details A newly-discovered cataclysmic binary near the ROSAT galactic plane source RX J1910.8+2856 A newly-discovered cataclysmic binary near the ROSAT galactic plane source RX J1910.8+2856

Jun 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26a...358..600t&link_type=abstract

Astronomy and Astrophysics, v.358, p.600-604 (2000)

Astronomy and Astrophysics

Astrophysics

Stars: Binaries: Close, Stars: Individual: Rx J1910.8+2856, Stars: Individual: Rx J191059.6+285639, Stars: Novae, Cataclysmic Variables, X-Rays: Stars

Scientific paper

We report the discovery of a new cataclysmic binary star from the ROSAT Galactic Plane Survey. The star has V >~ 18.5 at minimum light and we have measured it as bright as V = 15.7. Spectroscopy shows broad hydrogen and helium emission lines; HeII lambda 4686 is not detected. Hα radial velocities yield an orbital period of 0.1429 +/- 0.0004 d (3.430 +/- 0.010 h). Time-series photometry covering one orbital cycle near maximum light shows irregular variability, but no evidence of an eclipse. The system appears to be a new dwarf nova of the U Gem or Z Cam type, and is unlikely to be a magnetic system. Its period is unusually short for a U Gem star. Curiously, the new cataclysmic binary is 83'' from the original ROSAT PSPC survey position, which puts it outside the PSPC positional uncertainty. Follow-up observations with the HRI reveal that the PSPC source is the superposition of two sources, and the cataclysmic is much the weaker of the two in X-rays. Its discovery in this survey is therefore essentially accidental. A V = 19.4 mag star is located 1.2'' from the stronger source's HRI position.

Affiliated with

Also associated with

No associations

Rating

A newly-discovered cataclysmic binary near the ROSAT galactic plane source RX J1910.8+2856 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A newly-discovered cataclysmic binary near the ROSAT galactic plane source RX J1910.8+2856, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A newly-discovered cataclysmic binary near the ROSAT galactic plane source RX J1910.8+2856 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1387164