Optical Identifications of 230 HIPASS Radio Sources
Cosmology and Nongalactic Astrophysics
2014-01-20 v2
Abstract
We present the coordinates, apparent magnitudes, and morphological types for 230 galaxies presumably identified with HIPASS (HI Parkes All-Sky Survey) sources. The new optical counterparts of the HIPASS sources follow the well-known statistical relationships between the hydrogen mass, luminosity, and type of galaxies. Low-surface-brightness galaxies constitute a significant fraction among these objects. The median value of the hydrogen mass-to-luminosity ratio for them is a factor of 2 or 3 higher than that for bright HIPASS galaxies, reaching . A number of our objects are located near the boundary that defines the zone of gravitational stability of disk galaxies against large-scale star formation.
Cite
@article{arxiv.0902.0256,
title = {Optical Identifications of 230 HIPASS Radio Sources},
author = {I. D. Karachentsev and D. I. Makarov and V. E. Karachentseva and O. V. Melnyk},
journal= {arXiv preprint arXiv:0902.0256},
year = {2014}
}