Volume 401, Number 2, April II 2003
|Page(s)||483 - 489|
|Published online||21 March 2003|
HI observations of nearby galaxies V. Narrow (HI) line galaxies*
Max-Plank-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
2 Special Astrophysical Observatory, Russian Academy of Sciences, N.Arkhyz, KChR 369167, Russia
3 Astronomical Observatory of Kiev University, Observatorna, 3, 04053 Kiev, Ukraine
Corresponding author: W. K. Huchtmeier, email@example.com
Accepted: 22 January 2003
In this paper we present new HI observations with high velocity resolution for 104 nearby narrow-line galaxies with half power line widths smaller than 50 km s-1 most of which are well approximated by a Gaussian. The FWHM line width of 30 of these integrated HI profiles is less than 25 km s-1. We present global parameters of these nearby galaxies and discuss the size dependence, the luminosity dependence, and the dependence of these parameters with the observed line width. Our sample essentially is a subsample of the Local Volume (i.e. galaxies within 10 Mpc) with declinations ≥-30° and only a few galaxies at greater distances. It is described by the following median values of global physical parameters: total absolute blue magnitude ; linear diameter kpc (this corresponds to the de Vaucouleurs diameter D25); half power line width km s-1; total HI mass ; distance Mpc; HI mass-to-luminosity ratio ; total mass-to luminosity ratio .
Key words: galaxies: distances and redshifts / galaxies: dwarf / galaxies: general
© ESO, 2003
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