FIRBACK III：目录、源点计数及170微米ISO深层调查的宇宙学意义
天体物理学
2009-11-06 v1
摘要
FIRBACK（远红外背景）调查是ISO搭载ISOPHOT在170微米进行的最深层成像调查之一，旨在研究宇宙远红外背景的结构。本文提供了已分辨源点的分析结果。经过验证的数据减法和标定过程后，我们进行大量模拟，以优化源点提取、测量迷惑噪声（σ_c = 45 mJy），并给出光度和定位精度。检测到196个flux为S > 3σ_c的星系，覆盖面积为3.89平方度。flux > 4σ_c的源点计数在differential "logN-logS"曲线上呈现斜率为3.3 ± 0.6的陡峭趋势，范围在180至500 mJy之间。因此，迷惑水平较高，将显著影响未来的红外深层调查。这种强烈的演化（与欧几里得几何的斜率2.5相比）与暗示Luminous Infrared Galaxy群体强烈演化的模型相吻合。分辨的源点仅占170微米处宇宙红外背景的不到10%，预计将在1至10 mJy范围内被分辨为单独的源点。
引用
@article{arxiv.astro-ph/0103434,
title = {FIRBACK: III. Catalog, Source counts, and cosmological implications of the 170 micron ISO Deep survey},
author = {Herve Dole and Richard Gispert and Guilaine Lagache and Jean-Loup Puget and F. R. Bouchet and C. Cesarsky and P. Ciliegi and D. L. Clements and M. Dennefeld and F-X Desert and D. Elbaz and A. Franceschini and B. Guiderdoni and M. Harwit and D. Lemke and A. F. M. Moorwood and S. Oliver and W. T. Reach and M. Rowan-Robinson and M. Stickel},
journal= {arXiv preprint arXiv:astro-ph/0103434},
year = {2009}
}
备注
Accepted for publication in A&A. 16 pages, includes new aa.cls. Tables 7 to 13 included here will appear on the electronic version of A&A and at the CDS. Paper, catalog and images (with better quality) also available at http://wwwfirback.ias.u-psud.fr and http://mips.as.arizona.edu/~hdole/firback