Lenticular galaxy formation: possible luminosity dependence

Barway, Sudhanshu ; Kembhavi, Ajit ; Wadadekar, Yogesh ; Ravikumar, C. D. ; Mayya, Y. D. (2007) Lenticular galaxy formation: possible luminosity dependence Astrophysical Journal Letters, 661 (1). L37-L40. ISSN 0004-637X

PDF - Publisher Version

Official URL: http://iopscience.iop.org/1538-4357/661/1/L37

Related URL: http://dx.doi.org/10.1086/518422


We investigate the correlation between the bulge effective radius (re) and disk scale length (rd) in the near-infrared K band for lenticular galaxies in the field and in clusters. We find markedly different relations between the two parameters as a function of luminosity. Lenticulars with total absolute magnitude fainter than MT = -24.5 show a positive correlation, in line with predictions of secular formation processes for the pseudobulges of late-type disk galaxies. But brighter lenticulars with MT < -24.5 show an anticorrelation, indicating that they formed through a different mechanism. The available data are insufficient to reliably determine the effect of galaxy environment on these correlations.

Item Type:Article
Source:Copyright of this article belongs to American Astronomical Society.
ID Code:25473
Deposited On:06 Dec 2010 13:21
Last Modified:17 May 2016 08:57

Repository Staff Only: item control page