Bibcode
Zhao, P.; Grindlay, J. E.; Edmonds, P.; Garcia, M. R.; McClintock, J. E.; Cohn, H.; Lugger, P.; Slavin, S.; Hoard, D. W.; Wachter, S.
Bibliographical reference
American Astronomical Society, 199th AAS Meeting, #130.06; Bulletin of the American Astronomical Society, Vol. 33, p.1496
Advertised on:
12
2001
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Description
We present the photometric results of the Chandra Multiwavelength Plane
Survey (ChaMPlane), which is a project to identify a large sample of
serendipitous X-ray sources in the galactic plane, in order to determine
the populations of accretion-powered binaries in the Galaxy. Deep
Chandra field observations have sufficient sensitivity to reach objects
with Lx = 1031 erg/s out to about 7 kpc, i.e. a
substantial fraction of the galactic disk. The ChaMPlane project has
been chosen as one of the NOAO Long Term Survey Program. We have
successfully conducted the ChaMPlane survey for the first two years and
obtained deep images in the V, R, I and Hα bands for more than 20
Chandra fields from the CTIO and KPNO 4-m telescopes, which covers more
than eight square degrees in the galactic plane. Cataclysmic Variables
(CVs) and quiescent Low Mass X-ray Binaries (qLMXBs) are identified by
their ubiquitous Hα excess as ``blue'' objects in the R vs.
(Hα - R) diagram. We describe our data analysis methods and
present initial photometry results for this first significant sample of
ChaMPlane optical data. Initial X-ray results for a subset of these
fields are presented by Grindlay et al. This work is supported by
NASA/SAO grant AR1-2001X and NSF grant AST-0098683.