A New, Bright, Short-period, Emission Line Binary in Ophiuchus

Details A New, Bright, Short-period, Emission Line Binary in Ophiuchus A New, Bright, Short-period, Emission Line Binary in Ophiuchus

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.0907s&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #09.07; Bulletin of the American Astronomical Society, V

Other

Scientific paper

The 11th magnitude star LS IV -08d 3 has been classified as an OB star in the Luminous Stars survey, or alternatively as a hot subdwarf. The star may be the counterpart of a weak ROSAT X-ray source. We initially observed it as part of a program on composite-spectrum hot subdwarf stars, owing to its red observed optical and near-IR colors. We found emission in the cores of H and He I absorption lines. Emission is also present from He II 468.6 nm and near 465 nm (C III or N III). Diffuse interstellar bands indicate considerable reddening. Time-series spectroscopy collected from June 2004 to March 2006 shows coherent, periodic radial velocity variations of the H-alpha line, which we interpret as orbital motion with a 0.2d period. There is less coherent, low-amplitude photometric variability on a similar timescale. We will present our findings, including spectra, the spectroscopic orbital elements, and time series photometry, from observations made at the KPNO 2.1m, Steward 2.3m, HET 9.2m, MDM 1.3m and 2.4m, and MSU 0.6m telescopes. Many aspects of this star are consistent with those of a novalike cataclysmic variable, although other interpretations may be possible. Partially supported by NASA and NSF.

Affiliated with

Also associated with

No associations

Rating

A New, Bright, Short-period, Emission Line Binary in Ophiuchus 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 New, Bright, Short-period, Emission Line Binary in Ophiuchus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A New, Bright, Short-period, Emission Line Binary in Ophiuchus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1154848