AAS 201st Meeting, January, 2003
Session 105. Mapping the Cosmos: A Variety of Surveys
Oral, Wednesday, January 8, 2003, 2:00-3:30pm, 606-607

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[105.04] Chandra Multiwavelength Plane (ChaMPlane) Survey: Optical Results

P. Zhao, J. E. Grindlay, P. Edmonds, J. Hong, S. Laycock, E. M. Schlegel (Harvard-Smithsonian CfA), H. Cohn, P. Lugger, A. Rogel (Indiana), T. Abbott (CTIO), A. Cool (SFSU)

We present the optical photometry and spectroscopy results of the Chandra Multiwavelength Plane (ChaMPlane) Survey (see abstract by Grindlay, et al.). ChaMPlane is a project to identify a large sample of serendipitous X-ray sources in deep galactic plane fields imaged by the Chandra X-ray Observatory in order to determine the populations of accretion-powered binaries in the Galaxy. The ChaMPlane Optical Survey is one of NOAO's Long Term Survey Programs. So far we have conducted the ChaMPlane survey in 24 Chandra fields and obtained deep images in the V, R, I and H\alpha bands from the CTIO and KPNO 4-m telescopes with the Mosaic camera, with a total coverage of more than eight square degrees in the galactic plane. Cataclysmic Variables (CVs) and quiescent Low Mass X-ray Binaries (qLMXBs) are identified as H\alpha excess objects. Several thousand serendipitous X-ray sources are detected. A significant fraction (more than 50% for moderately reddened fields) of their optical counterparts are identified in the Mosaic images. Spectroscopic follow-ups for the Chandra optical counterparts and H\alpha emission sources have been conducted on 14 of the fields using the WIYN (3.5-m) and Magellan (6.5-m) telescopes. Several new CVs, including the first X-ray-CV, Be-HMXB, and many new AGNs have been found. All the ChaMPlane data will be eventually available to the public in a ChaMPlane Data Archive. We will show our plan for establishing this Database. This work is supported by NASA/SAO grant AR1-2001X and NSF grant AST-0098683.

If you would like more information about this abstract, please follow the link to http://hea-www.harvard.edu/ChaMPlane/. This link was provided by the author. When you follow it, you will leave the Web site for this meeting; to return, you should use the Back comand on your browser.

The author(s) of this abstract have provided an email address for comments about the abstract: zhao@cfa.harvard.edu

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