Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21915303b&link_type=abstract
American Astronomical Society, AAS Meeting #219, #153.03
Astronomy and Astrophysics
Astronomy
Scientific paper
The Chandra Galactic Bulge Survey (CGBS) is a shallow X-ray survey of 2 6x1 degree strips above and below the Galactic Plane, where extinction and crowding are substantially lower than in the plane itself. The strategy for the CGBS is to go deep enough in the X-ray to see quiescent Low Mass X-ray Binaries (qLMXB), but to remain shallow enough to avoid an overabundance of Cataclysmic Variables (CVs), with the goal of testing binary evolution models and greatly expanding the sample of LMXBs for optical follow up including mass determination. We present classification of selected X-ray emitting interacting binaries out of 1234 X-ray sources identified in the CGBS. Each source exhibits emission lines in its optical/IR spectrum. The optical variability of each source was also examined to determine lightcurve morphology and periodicity. Combining spectral information, lightcurve morphology, and X-ray to optical flux ratios enables classification of each of these sources.
This work is supported by the National Science Foundation under Grant No.AST-0908789.
Bassa Cees G.
Britt Christopher
Collazzi Andrew C.
Galactic Bulge Survey Collaboration
Gossen Lauren
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