The Chandra Multi-wavelength Project (ChaMP): a serendipitous survey with Chandra archival data

Details The Chandra Multi-wavelength Project (ChaMP): a serendipitous survey with Chandra archival data The Chandra Multi-wavelength Project (ChaMP): a serendipitous survey with Chandra archival data

2000-11-21

arxiv.org/abs/astro-ph/0011377v1

Astronomy and Astrophysics

Astrophysics

6 pages, latex file, 4 Postscript FiguresProceedings of New Era of Wide Field Astronomy, Aug 2000, Preston UK

Scientific paper

The launch of the Chandra X-ray Observatory in July 1999 opened a new era in X-ray astronomy. Its unprecedented, <0.5" spatial resolution and low background are providing views of the X-ray sky 10-100 times fainter than previously possible. We have initiated a serendipitous survey (ChaMP) using Chandra archival data to flux limits covering the range between those reached by current satellites and those of the small area Chandra deep surveys. We estimate the survey will cover ~5 sq.deg./year to X-ray fluxes (2-10 keV) in the range 1E(-13)-6E(-16) erg/cm^2/s discovering ~2000 new X-ray sources, ~80% of which are expected to be AGN. The ChaMP has two parts, the extragalactic survey (ChaMP) and the galactic plane survey (ChaMPlane). ChaMP promises profoundly new science return on a number of key questions at the current frontier of many areas of astronomy including (1) locating and studying high redshift clusters and so constraining cosmological parameters (2) defining the true population of AGN, including those that are absorbed, and so constraining the accretion history of the universe, (3) filling in the gap in the luminosity/redshift plane between Chandra deep and previous surveys in studying the CXRB, (4) studying coronal emission from late-type stars and (5) search for CVs and quiescent Low-Mass X-ray Binaries (qLXMBs) to measure their luminosity functions. In this paper we summarize the status, predictions and initial results from the X-ray analysis and optical imaging.

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