First list of the Karachentsev catalog (Huchtmeier+, 2000)

Details First list of the Karachentsev catalog (Huchtmeier+, 2000) First list of the Karachentsev catalog (Huchtmeier+, 2000)

Oct 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000ycat..41410469h&link_type=abstract

VizieR On-line Data Catalog: J/A+AS/141/469. Originally published in: 2000A&AS..141..469H

Physics

Galaxies: Radio, H I Data, Radio Lines, Radial Velocities

Scientific paper

We present HI observations of the galaxies in the first list of the Karachentsev catalog of previously unknown nearby dwarf galaxies (Karachentseva & Karachentsev, 1998, Cat. ). This survey covers all known nearby galaxy groups within the Local Volume (i.e. within 10Mpc) and their environment, that is about 25% of the total sky. A total of 257 galaxies have been observed with a detection rate of 60%. We searched a frequency band corresponding to heliocentric radial velocities from -470km/s to ~+4000km/s. Non-detections are either due to limited coverage in radial velocity, confusion with Local HI (mainly in the velocity range -140km/s to +20km/s), or lack of sensitivity for very weak emission. 25% of the detected galaxies are located within the Local Volume. Those galaxies are dwarf galaxies judged by their optical linear diameter (1.4+/-0.2kpc on the average), their mean total HI mass (4.6x107M&sun;), and their observed linewidths (39km/s). (3 data files).

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