Optically Variable RASS X-ray Sources in the Northern Sky Variability Survey
Abstract
Optical variability is often associated with high energy emission, allowing for the identification of optical counterparts to x-ray sources. A catalog of over 65,000 previously known optical variables is position-matched to the ROSAT All-Sky Survey, and 1056 variables are identified as x-ray emitters. Using data from SIMBAD where known, variability classes are determined using period and 2MASS colors. A large fraction of these variables are believed to be young stellar objects, some of which fall in the classical T-Tauri period range. Follow-up spectra have been measured for these objects.
- Publication:
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American Astronomical Society Meeting Abstracts
- Pub Date:
- December 2006
- Bibcode:
- 2006AAS...20916220G