A Deep Survey of HI-Selected Galaxies: The HI Mass Function
Astrophysics
2009-10-31 v1
Abstract
We analyze the distribution of galaxy HI masses detected in a large, deep HI survey conducted at the Arecibo observatory, and we find possible evidence of a faint-end steepening of the mass function similar to what has been found optically. This is the first HI survey with enough dynamic range to see this steepening; the results of an earlier survey are found to be consistent when the detection statistics are re-examined. We demonstrate a technique for testing and correcting source count completeness in HI surveys based on the V/V_max test and the large scale structure in the regions surveyed.
Cite
@article{arxiv.astro-ph/9810349,
title = {A Deep Survey of HI-Selected Galaxies: The HI Mass Function},
author = {Stephen E. Schneider and John G. Spitzak and Jessica L. Rosenberg},
journal= {arXiv preprint arXiv:astro-ph/9810349},
year = {2009}
}
Comments
11 pages, 3 figures, to be published in ApJ Letters