H I observations of nearby galaxies. II. The second list of the Karachentsev catalog
Abstract
We present H i observations of the galaxies in the second list of the Karachentsev catalog of previously unknown nearby dwarf galaxies (Karachentseva et al. \cite{Karachentseva1999). This survey covers an area of 6000 square degrees within the boundaries RA [14h, 23h30] and Dec. [-200, +600] including the nearest cosmic void: RA = 18h38m, Dec. = +180, V0<= 1500 km s-1. A total of 78 galaxies have been observed with a detection rate of 42%. We searched a frequency band corresponding to heliocentric radial velocities from -470 km s-1 to +3970 km s-1. Non-detections are either due to limited coverage in radial velocity, confusion with Local H I (mainly in the velocity range -140 km s-1 to +20 km s-1), or lack of sensitivity for very weak emission. In the general direction toward the Local Void we detected only one galaxy with a corrected radial velocity below 1500 km s-1. The Local Void seems to be highly deficient in dwarf galaxies. Table~2 is also available in electronic form at the CDS via anonymous ftp (139.79.128.5) or via http://cdsweb.u-strasbg.fr/Abstract.html}
- Publication:
-
Astronomy and Astrophysics Supplement Series
- Pub Date:
- December 2000
- DOI:
- 10.1051/aas:2000369
- Bibcode:
- 2000A&AS..147..187H
- Keywords:
-
- GALAXIES: DISTANCES AND REDSHIFT;
- DWARFT;
- FUNDAMENTAL PARAMETERS;
- GENERAL