Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...19713602m&link_type=abstract
American Astronomical Society, 197th AAS Meeting, #136.02; Bulletin of the American Astronomical Society, Vol. 33, p.723
Astronomy and Astrophysics
Astronomy
Scientific paper
We present the results of the off-source spatial fluctuation analyses of the initial ~ 220 ks of Chandra GT observation on the Hubble Deep Field (HDF). The distributions of counts in cells in the source-excluded Chandra ACIS-I images in 0.5-2 keV and 2-8 keV bands have been compared with those expected from flux-distribution (Log N-Log S) models using simulations including non-uniformity of exposure over the field of view (FOV) and off-axis angle-dependent point-spread function (PSF). Our preliminary analyses for the first ~ 160 [ks] of data could constrain of the Log N-Log S function down to ~ 4;10-17 and ~ 3;10-16 [erg cm-2 s{-1}] for the 0.5-2 keV and 2-10 keV bands respectively. We discuss the implication of the results in terms of the AGN population systhesis modeling and limits to the contribution of an additional source population (e.g. star-forming galaxies).
Bautz Mark W.
Brandt Wiliam N.
Broos Patrick S.
Burrows David N.
Chartes G.
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