H I observations of nearby galaxies. II. The second list of the Karachentsev catalog

Details H I observations of nearby galaxies. II. The second list of the Karachentsev catalog H I observations of nearby galaxies. II. The second list of the Karachentsev catalog

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26as..147..187h&link_type=abstract

Astronomy and Astrophysics Supplement, v.147, p.187-194

Astronomy and Astrophysics

Astrophysics

18

Galaxies: Distances And Redshift, Dwarft, Fundamental Parameters, General

Scientific paper

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}

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