Computer Science – Performance
Scientific paper
Sep 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001tysc.confe..70g&link_type=abstract
Two Years of Science with Chandra, Abstracts from the Symposium held in Washington, DC, 5-7 September, 2001, meeting abstract.
Computer Science
Performance
Extragalactic Diffuse Emission And Surveys
Scientific paper
The Chandra X-ray Observatory's unprecedented 0.5 arcsec angular resolution and sensitivity are ideal for the discovery and study of faint X-ray sources. The Chandra Multiwavelength Project (ChaMP) augments Chandra data with optical imaging and spectroscopy to fully investigate the properties of serendipitous sources in Chandra's 17*17 arcminute field of view. We use analytical models of the Chandra mirror and ACIS instrument performance to find the source sensitivity limits as a function of off-axis angle for a given source powerlaw index and column density. By assuming a logN-logS and using a subset of Chandra Cycle 1 and 2 fields selected for the ChaMP, we then calculate an expected number of X-ray source detections and derive the expected sky coverage as a function of flux sensitivity and source spectrum. Using an L-z relation we also calculate an expected redshift distribution assuming all sources are AGN. Finally we examine how changing the X-ray source properties will affect the derived logN-logS relations.
Green Paul J.
Grimes John P.
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