ENVIRONMENTAL DEPENDENCE OF OTHER GALAXY PROPERTIES FOR THE SAME STAR FORMATION ACTIVITIES
- School of Science, Nanchang University, Jiangxi, 330031 (China)
Using two volume-limited Main galaxy samples of the Sloan Digital Sky Survey Data Release 6 above and below the value of M*, we have investigated the environmental dependence of other galaxy properties for the same star formation activities. Only in the luminous passive class, a strong environmental dependence of the g - r color is observed, but the environmental dependence of other properties in this class is very weak. In other classes, we can conclude that the local density dependence of luminosity, g - r color, concentration index ci, and morphologies for star-forming galaxies and passive ones is much weaker than that obtained in the volume-limited Main galaxy samples. This suggests that star formation activity is a galaxy property very predictive of the local environment. In addition, we also note that passive galaxies are more luminous, redder, highly concentrated, and preferentially 'early type'.
- OSTI ID:
- 21392500
- Journal Information:
- Astrophysical Journal, Vol. 708, Issue 1; Other Information: DOI: 10.1088/0004-637X/708/1/101; ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
Similar Records
SMALL-SCALE STRUCTURE IN THE SLOAN DIGITAL SKY SURVEY AND {Lambda}CDM: ISOLATED {approx}L{sub *} GALAXIES WITH BRIGHT SATELLITES
THE AROMATIC FEATURES IN VERY FAINT DWARF GALAXIES