학술논문
Number Counts of GALEX Sources in FUV (1530A) and NUV (2310A) Bands
Document Type
Working Paper
Author
Xu, C. Kevin; Donas, Jose; Arnouts, Stephane; Wyder, Ted K.; Seibert, Mark; Iglesias-Paramo, Jorge; Blaizot, Jeremy; Small, Todd; Milliard, Bruno; Schiminovich, David; Martin, D. Christopher; Barlow, Tom A.; Bianchi, Luciana; Byun, Yong-Ik; Forster, Karl; Friedman, Peter G.; Heckman, Timothy M.; Jelinsky, Patrick N.; Lee, Young-Wook; Madore, Barry F.; Malina, Roger F.; Morrissey, Patrick; Neff, Susan G.; Rich, R. Michael
Source
Astrophys.J. 619 (2005) L11-L14
Subject
Language
Abstract
Number Counts of galaxies in two GALEX bands (FUV: 1530A and NUV: 2310A, both in AB magnitudes) are reported. They provide for the first time in the literature homogeneously calibrated number counts of UV galaxies covering continuously a very wide range of UV magnitude (14 -- 23.8). Both the FUV and NUV counts are inconsistent with a non-evolution model, while they are in good agreement with evolution models (essentially luminosity evolution) derived from the high-z UV luminosity functions of Arnouts et al. (2004). It is found that the contribution from galaxies detected by GALEX to the UV background is 0.68+-0.10 nW m-2 sr-1 at 1530A and 0.99+-0.15 nW m-2 sr-1 at 2310A. These are 66+-9% and 44+-6% of the total contributions of galaxies to the the UV background at 1530A, respectively, as estimated using the evolution models. ...
Comment: This paper will be published as part of the Galaxy Evolution Explorer (GALEX) Astrophysical Journal Letters Special Issue. Links to the full set of papers will be available at http:/www.galex.caltech.edu/PUBLICATIONS/ after November 22, 2004
Comment: This paper will be published as part of the Galaxy Evolution Explorer (GALEX) Astrophysical Journal Letters Special Issue. Links to the full set of papers will be available at http:/www.galex.caltech.edu/PUBLICATIONS/ after November 22, 2004