TY - JOUR
T1 - The Chandra Deep Wide-field Survey
T2 - A New Chandra Legacy Survey in the Boötes Field. I. X-Ray Point Source Catalog, Number Counts, and Multiwavelength Counterparts
AU - Masini, Alberto
AU - Hickox, Ryan C.
AU - Carroll, Christopher M.
AU - Aird, James
AU - Alexander, David M.
AU - Assef, Roberto J.
AU - Bower, Richard
AU - Brodwin, Mark
AU - Brown, Michael J.I.
AU - Chatterjee, Suchetana
AU - Chen, Chien Ting J.
AU - Dey, Arjun
AU - Dipompeo, Michael A.
AU - Duncan, Kenneth J.
AU - Eisenhardt, Peter R.M.
AU - Forman, William R.
AU - Gonzalez, Anthony H.
AU - Goulding, Andrew D.
AU - Hainline, Kevin N.
AU - Jannuzi, Buell T.
AU - Jones, Christine
AU - Kochanek, Christopher S.
AU - Kraft, Ralph
AU - Lee, Kyoung Soo
AU - Miller, Eric D.
AU - Mullaney, James
AU - Myers, Adam D.
AU - Ptak, Andrew
AU - Stanford, Adam
AU - Stern, Daniel
AU - Vikhlinin, Alexey
AU - Wake, David A.
AU - Murray, Stephen S.
N1 - Publisher Copyright:
© 2020. The American Astronomical Society. All rights reserved..
PY - 2020/10/22
Y1 - 2020/10/22
N2 - We present a new, ambitious survey performed with the Chandra X-ray Observatory of the 9.3 deg2 Boötes field of the NOAO Deep Wide-Field Survey. The wide field probes a statistically representative volume of the universe at high redshift. The Chandra Deep Wide-field Survey exploits the excellent sensitivity and angular resolution of Chandra over a wide area, combining 281 observations spanning 15 yr, for a total exposure time of 3.4 Ms, and detects 6891 X-ray point sources down to limiting fluxes of 4.7 10-16, 1.5 10-16, and 9 10-16 erg cm-2 s-1 in the 0.5-7, 0.5-2, and 2-7 keV bands, respectively. The robustness and reliability of the detection strategy are validated through extensive, state-of-the-art simulations of the whole field. Accurate number counts, in good agreement with previous X-ray surveys, are derived thanks to the uniquely large number of point sources detected, which resolve 65.0% 12.8% of the cosmic X-ray background between 0.5 and 2 keV and 81.0% 11.5% between 2 and 7 keV. Exploiting the wealth of multiwavelength data available on the field, we assign redshifts to ∼94% of the X-ray sources, estimate their obscuration, and derive absorption-corrected luminosities. We provide an electronic catalog containing all of the relevant quantities needed for future investigations.
AB - We present a new, ambitious survey performed with the Chandra X-ray Observatory of the 9.3 deg2 Boötes field of the NOAO Deep Wide-Field Survey. The wide field probes a statistically representative volume of the universe at high redshift. The Chandra Deep Wide-field Survey exploits the excellent sensitivity and angular resolution of Chandra over a wide area, combining 281 observations spanning 15 yr, for a total exposure time of 3.4 Ms, and detects 6891 X-ray point sources down to limiting fluxes of 4.7 10-16, 1.5 10-16, and 9 10-16 erg cm-2 s-1 in the 0.5-7, 0.5-2, and 2-7 keV bands, respectively. The robustness and reliability of the detection strategy are validated through extensive, state-of-the-art simulations of the whole field. Accurate number counts, in good agreement with previous X-ray surveys, are derived thanks to the uniquely large number of point sources detected, which resolve 65.0% 12.8% of the cosmic X-ray background between 0.5 and 2 keV and 81.0% 11.5% between 2 and 7 keV. Exploiting the wealth of multiwavelength data available on the field, we assign redshifts to ∼94% of the X-ray sources, estimate their obscuration, and derive absorption-corrected luminosities. We provide an electronic catalog containing all of the relevant quantities needed for future investigations.
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U2 - 10.3847/1538-4365/abb607
DO - 10.3847/1538-4365/abb607
M3 - Review article
AN - SCOPUS:85094610141
SN - 0067-0049
VL - 251
JO - Astrophysical Journal, Supplement Series
JF - Astrophysical Journal, Supplement Series
IS - 1
M1 - 2
ER -