Chandra Multiwavelength Plane (ChaMPlane) Survey: Results from
the First Year
Ping Zhao, Jonathan E. Grindlay, Peter Edmonds, Michael R. Garcia, Jeffrey E. McClintock (CfA), Haldan Cohn, Phyllis Lugger, Shawn Slavin (Indiana U.), Don W. Hoard & Stefanie Wachter (CTIO)
Abstract
The Chandra Multiwavelength Plane (ChaMPlane) Survey is a project to
identify a large sample of serendipitous X-ray sources in the galactic
plane (
), including cataclysmic variables
(CVs), quiescent low mass X-ray binaries (qLMXBs: which includes both
black hole and neutron star systems), Be X-ray binaries and stellar
coronal sources (see Grindlay et al 2000, BAAS, 196, 37.07 for general
description). The major goal is to measure, or constrain, the
luminosity functions of compact X-ray binaries and CVs. The ChaMPlane
project is currently supported by NASA (Chandra Archive), NOAO, and
NSF. ChaMPlane has been chosen by NOAO as a Long Term Survey Program.
Deep (
)
4m Mosaic images are obtained to identify CVs
and qLMXBs by their ubiquitous
excess as ``blue''
objects in the R vs.
diagram. We have
successfully conducted the ChaMPlane survey for the first year and
obtained: deep images in the V, R, I and
bands for 21
Chandra fields (17 from CTIO and 4 from KPNO); corresponding
serendipitous X-ray source fluxes from archived Chandra (AO1) fields;
optical WIYN/Hydra multi-fiber spectra and Magellan/LDSS2 multi-slit
spectra for the X-ray sources and detected
-excess
sources in three Chandra fields (J0422+32, A0620-00 and SgrA*).
We present our data analysis methods and photometry, spectroscopy and
X-ray results from the first year of the ChaMPlane Survey.
CATEGORY: GALACTIC DIFFUSE EMISSION AND SURVEYS