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| Paper: |
The Brightest Serendipitous X-ray Sources in ChaMPlane |
| Volume: |
393, New Horizons in Astronomy: Frank N. Bash Symposium 2007 |
| Page: |
247 |
| Authors: |
Penner, K.; van den Berg, M.; Hong, J.; Laycock, S.; Zhao, P.; Grindlay, J. |
| Abstract: |
The Chandra Multiwavelength Plane (ChaMPlane) Survey is a comprehensive effort to constrain the population of accretion-powered and coronal low-luminosity X-ray sources (LX ∼ < 1033 erg s−1) in the Galaxy. ChaMPlane incorporates X-ray, optical, and infrared observations of fields in the Galactic Plane imaged with Chandra in the past six years. We present the results of a population study of the brightest X-ray sources in ChaMPlane. We use X-ray spectral fitting, X-ray lightcurve analysis, and optical photometry of candidate counterparts to determine the properties of 21 sources. Our sample includes a previously unreported quiescent low-mass X-ray binary or cataclysmic variable (R = 20.9) and ten stellar sources (12.5 ≤ R ≤ 15), including one flare star (R = 17.3). We find that quantile analysis, a new technique developed for constraining the X-ray spectral properties of low-count sources, is largely consistent with spectral fitting. |
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