Comparing Optical and Near-Infrared Luminosity Functions
Open Access
- 20 July 2001
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 556 (1), L17-L19
- https://doi.org/10.1086/322861
Abstract
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.Other Versions
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