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arXiv · astro-ph/9907384

HI properties of nearby galaxies from a volume-limited sample

I. D. Karachentsev·D. I. Makarov·W. K. Huchtmeier
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Abstract

We consider global HI and optical properties of about three hundred nearby galaxies with V$_0 < 500$ km/s. The majority of them have individual photometric distance estimates. The galaxy sample parameters, e.g. their linear diameters, their HI mass-to-luminosity ratio, their total mass-to-luminosity ratio, their mean optical surface brightness show some known and some new correlations implying a meaningful dynamic explanation. For the LV galaxies their HI mass and angular momentum follow a nearly linear relation expected for rotating gaseous disks being near the threashold of gravitational instability, favourable for active star formation.

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I. D. Karachentsev, D. I. Makarov, W. K. Huchtmeier. 1999-07-27. HI properties of nearby galaxies from a volume-limited sample. https://doi.org/10.1051/aas%3A1999383

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