Comparing optical and near-infrared luminosity functions

被引：17
|
作者：
Wright, EL
机构：
[1] Inst Adv Study, Princeton, NJ 08540 USA
[2] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA
来源：
ASTROPHYSICAL JOURNAL | 2001年 / 556卷 / 01期
关键词：
cosmology : observations; diffuse radiation; infrared : general;
D O I：
10.1086/322861
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The Sloan Digital Sky Survey (SDSS) has measured an optical luminosity function for galaxies in five bands, finding 1.5-2.1 times more luminosity density than previous work. This Letter compares the SDSS luminosity density with two recent determinations of the near-infrared luminosity function based on the 2 Micron All Sky Survey data and finds that an extrapolation of the SDSS results gives a 2.3 times greater near-infrared luminosity density.
引用
收藏
页码：L17 / L19
页数：3
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