Comparing optical and near-infrared luminosity functions

Authors
Wright, EL
Citation
El. Wright, Comparing optical and near-infrared luminosity functions, ASTROPHYS J, 556(1), 2001, pp. L17-L19
Citations number
19
Categorie Soggetti
Space Sciences
Journal title
ASTROPHYSICAL JOURNAL
ISSN journal
0004637X → ACNP
Volume
556
Issue
1
Year of publication
2001
Part
2
Pages
L17 - L19
Database
ISI
SICI code
0004-637X(20010720)556:1<L17:COANLF>2.0.ZU;2-5
Abstract
The Sloan Digital Sky Survey (SDSS) has measured an optical luminosity func tion for galaxies in five bands, finding 1.5-2.1 times more luminosity dens ity than previous work. This Letter compares the SDSS luminosity density wi th 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.