The BMW Detection Algorithm applied to the Chandra Deep Field south: deeper and deeper
Astrophysics
2009-11-07 v1
Abstract
Chandra deep fields represent the deepest look at the X-ray sky. We analyzed the Chandra Deep Field South (CDFS) with the aid of a dedicated wavelet-based algorithm. Here we present a detailed description of the procedures used to analyze this field, tested and verified by means of extensive simulations. We show that we can safely reconstruct the LogN-Log S source distribution of the CDFS down to limiting fluxes of 2.4x10^-17 and 2.1x10^-16 erg s^-1 cm^-2 in the soft (0.5-2 keV) and hard (2-10 keV) bands, respectively, fainter by a factor ~ 2 than current estimates. At these levels we can account for ~ 90% of the 1-2 keV and 2-10 keV X-ray background.
Keywords
Cite
@article{arxiv.astro-ph/0201290,
title = {The BMW Detection Algorithm applied to the Chandra Deep Field south: deeper and deeper},
author = {A. Moretti and D. Lazzati and S. Campana and G. Tagliaferri},
journal= {arXiv preprint arXiv:astro-ph/0201290},
year = {2009}
}
Comments
27 pages 16 figures, accepted for publication in the Astrophysical Journal