Initial Optical Counterpart Identifications for Chandra Deep Survey X-ray Sources towards the Galactic Center

Details Initial Optical Counterpart Identifications for Chandra Deep Survey X-ray Sources towards the Galactic Center Initial Optical Counterpart Identifications for Chandra Deep Survey X-ray Sources towards the Galactic Center

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003head....7.3704z&link_type=abstract

American Astronomical Society, HEAD meeting #7, #37.04; Bulletin of the American Astronomical Society, Vol. 35, p.652

Astronomy and Astrophysics

Astronomy

1

Scientific paper

We present the initial optical counterpart identifications for the Chandra Catalog of X-ray sources towards the Galactic Center (Muno et al. ApJ submitted). 2357 X-ray point sources are detected during 590 ks of Chandra ACIS-I observations with a 17'x17' field around SgrA*. The search for their optical counterparts is conducted with moderately deep V, R, I and Hα images covering the same field taken with the Mosaic camera on the CTIO 4-m telescope in March 2000 as part of the Chandra Multiwavelength Plane (ChaMPlane) Survey. The error radius of each Chandra source is estimated with a raytrace/wavdetect simulation based on the source off-axis angle and net counts. Some 237 sources are detected below 1.2 keV and with >99% source significance in the full 17' field. They are likely sources in the foreground of the Galactic Center. 204 of the 237 sources have matching optical counterparts. For the ˜2000 sources detected in the hard band (2.5--8 keV), only ˜10% have optical matching (at R<23). And most of these ˜10% matches are likely coincident matches with foreground stars. We present our optical counterpart identification method used for the ChaMPlane Survey and the V, R, I, Hα magnitudes of the optical counterparts of this initial sample.
This work is supported by NASA/SAO grant AR1-2001X, AR2-3002A and NSF grant AST-0098683.

Affiliated with

Also associated with

No associations

Rating

Initial Optical Counterpart Identifications for Chandra Deep Survey X-ray Sources towards the Galactic Center does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Initial Optical Counterpart Identifications for Chandra Deep Survey X-ray Sources towards the Galactic Center, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Initial Optical Counterpart Identifications for Chandra Deep Survey X-ray Sources towards the Galactic Center will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1000700