Gas-rich Dwarfs from the Second Palomar Sky Survey. I. Catalog and Characteristics
Abstract
This project is a visual search for field dwarf galaxies using Second Palomar Sky Survey photographic plates. A morphologically selected sample of 310 objects yielded 145 detections of true dwarfs within a redshift search window of 0 to 10,000 km s-1. We confirm the low-mass, dwarf nature of the same by comparison of luminosity, isophotal size, H I mass and H I profile width distribution of other dwarf samples. The goal of this project is to use these newly discovered dwarf galaxies to map large-scale structure as a test of biased galaxy formation. Initial indicators are that the large-scale distribution of dwarf galaxies is identical to that of bright, high-mass galaxies, in contradiction to theory using biasing. The full analysis of the sample will be reported in the final paper of our series.
- Publication:
-
The Astrophysical Journal Supplement Series
- Pub Date:
- July 1997
- DOI:
- 10.1086/313016
- arXiv:
- arXiv:astro-ph/9612130
- Bibcode:
- 1997ApJS..111..233S
- Keywords:
-
- GALAXIES: FUNDAMENTAL PARAMETERS;
- SURVEYS;
- Galaxies: Fundamental Parameters;
- Surveys;
- Astrophysics
- E-Print:
- 17 pages, AASTeX v4.0, 6 figures, to be published in ApJ Suppl, images, tables and referee report can be found at http://zebu.uoregon.edu/~js/dwarf.html