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Neutral hydrogen clouds near early-type dwarf galaxies of the Local Group

Bouchard, Antoine; Carignan, C; Staveley-Smith, Lister


Parkes neutral hydrogen 21 cm line (H I) observations of the surroundings of nine early-type Local Group dwarfs are presented. We detected numerous H I clouds in the general direction of those dwarfs, and these clouds are often offset from the optical center of the galaxies. Although all the observed dwarfs, except Antlia, occupy phase-space regions where the high-velocity cloud (HVC) density is well above average, the measured offsets are smaller than one would expect from a fully random cloud...[Show more]

CollectionsANU Research Publications
Date published: 2006
Type: Journal article
Source: Astronomical Journal
DOI: 10.1086/503629


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