What are the Luminous Compact Blue Galaxies?
Abstract
Luminous Compact Blue Galaxies (LCBGs) are common at z~1, contributing significantly to the total star formation rate density. By z~0, they are a factor of ten rarer. While we know that LCBGs evolve rapidly, we do not know what drives their evolution nor into what types of galaxies they evolve. We present the results of a single-dish HI survey of local LCBGs undertaken to address these questions. Our results indicate that LCBGs have M(HI) and M(DYN) consistent with low-mass spirals, but typically exhaust their gas reservoirs in less than 2 Gyr. Overall, the properties of LCBGs are consistent with them evolving into high-mass dwarf elliptical or dwarf irregular galaxies or low-mass, late-type spiral galaxies.
Cite
@article{arxiv.0712.1243,
title = {What are the Luminous Compact Blue Galaxies?},
author = {D. J. Pisano and C. A. Garland and R. Guzman and J. Perez Gallego and F. J. Castander and N. Gruel},
journal= {arXiv preprint arXiv:0712.1243},
year = {2007}
}
Comments
2 pages, to appear in the proceedings of "The Formation and Evolution of Galaxy Disks", Rome 2007, organized by the Vatican Observatory, editors J. G. Funes, S.J. and E. M. Corsini