SIMBAD references

2003A&A...401..483H - Astronomy and Astrophysics, volume 401, 483-489 (2003/4-2)

HI observations of nearby galaxies. V. Narrow (HI) line galaxies..


Abstract (from CDS):

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 50km/s most of which are well approximated by a Gaussian. The FWHM line width of 30 of these integrated HI profiles is less than 25km/s. 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 10Mpc) 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 MBt=-12.85; linear diameter A0=1.63kpc (this corresponds to the de Vaucouleurs diameter D25); half power line width Wc=29km/s; total HI mass MHI=2x107M; distance D=5.1Mpc; HI mass-to-luminosity ratio MHI/LB=0.9M/L; total mass-to luminosity ratio Mt/LB=2.9M/L.

Abstract Copyright:

Journal keyword(s): galaxies: distances and redshifts - galaxies: dwarf - galaxies: general

Simbad objects: 104

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