We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
The environmental dependence of u-, g-, r-, i-, and z-band luminosities for galaxies above and below the value of M.
- Authors
Deng, Xin-Fa; Song, Jun; Chen, Yi-Qing; Jiang, Peng; Ding, Ying-Ping
- Abstract
Using two volume-limited Main galaxy samples of the Sloan Digital Sky Survey Data Release 6 (SDSS DR6), we have explored the difference of the environmental dependence of u-, g-, r-, i-, and z-band luminosities between galaxies above and below the value of M. It turns out that in the luminous volume-limited sample, all the five band luminosities strongly correlate with local environments. Because the u-band luminosity of galaxies still strongly depends on local environments in the faint volumelimited sample, we conclude that M is not an important characteristic parameter for the environmental dependence of the u-band luminosity. It is worth noting that for the u-band, the subsample at low density has a higher proportion of luminous galaxies and a lower proportion of faint galaxies than the one at high density, which is opposite to widely accepted conclusion: luminous galaxies exist preferentially in the densest regions of the universe, but faint galaxies are located preferentially in low density regions. Our results show that the environmental dependence of luminosity is not a single trend in different luminosity regions and for different bands.
- Subjects
STELLAR luminosity function; GALAXIES; STELLAR magnitudes; ASTRONOMY; DENSITY wave theory; DWARF galaxies; ELLIPTICAL galaxies
- Publication
Astronomy Letters, 2012, Vol 38, Issue 4, p213
- ISSN
1063-7737
- Publication type
Article
- DOI
10.1134/S1063773712040019