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Interstellar Medium Disruption in the Centaurus A Group

Bouchard, Antoine; Jerjen, Helmut; Da Costa, Gary; Ott, Juergen


We present the results of a 21 cm neutral hydrogen (H I) line detection experiment in the direction of 18 low-luminosity dwarf galaxies of the Centaurus A group, using the Australia Telescope National Facility 64 m Parkes Radio Telescope and the Australia Telescope Compact Array. Five dwarfs have H I masses between MH I = 4 × 105 and 2.1 × 107 M⊙ and 0.04M⊙ L⊙,B-1 < MHI/LB < 1.81 M⊙ L-1⊙,B The other 13 have upper limits between MHI = 5 × 105 and 4 × 106 M⊙ (MH I /LB < 0.24 M⊙ L⊙,B-1). Two of...[Show more]

CollectionsANU Research Publications
Date published: 2007
Type: Journal article
Source: Astronomical Journal
DOI: 10.1086/509132


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