Premium
Resolving the source populations that contribute to the X‐ray background: The 2 Ms Chandra Deep Field‐North Survey
Author(s) -
Alexander D. M.,
Bauer F. E.,
Brandt W. N.,
Garmire G. P.,
Hornschemeier A. E.,
Schneider D. P.,
Vignali C.
Publication year - 2003
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.200310003
Subject(s) - physics , astrophysics , redshift , galaxy , erg , hubble deep field , flux (metallurgy) , astronomy , chandra deep field south , universe , optics , retina , materials science , metallurgy
With ≈ 2 Ms of exposure, the Chandra Deep Field‐North (CDF‐N) survey provides the deepest view of the Universe in the 0.5–8.0 keV band. Five hundred and three (503) X‐ray sources are detected down to on‐axis 0.5–2.0 keV and 2–8 keV flux limits of ≈ 1.5 × 10 –17 erg cm –2 s –1 and ≈ 1.0 × 10 –16 erg cm –2 s –1 , respectively. These flux limits correspond to L 0.5–8.0 keV ≈ 3 × 10 41 erg s –1 at z = 1 and L 0.5–8.0 keV ≈ 2 × 10 43 erg s –1 at z = 6; thus this survey is sensitive enough to detect starburst galaxies out to moderate redshift and Seyfert galaxies out to high redshift.We present the X‐ray observations, describe the broad diversity of X‐ray selected sources, and review the prospects for deeper exposures.