Journal article

The large-scale distribution of neutral hydrogen in the Fornax region

M Waugh, MJ Drinkwater, RL Webster, L Staveley-Smith, VA Kilborn, DG Barnes, R Bhathal, WJG de Blok, PJ Boyce, MJ Disney, RD Ekers, KC Freeman, BK Gibson, PA Henning, H Jerjen, PM Knezek, B Koribalski, M Marquarding, RF Minchin, RM Price Show all

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | BLACKWELL PUBLISHING LTD | Published : 2002

Abstract

Using data from the HI Parkes All Sky Survey (HIPASS), we have searched for neutral hydrogen in galaxies in a region ∼25 × 25 deg2 centred on NGC 1399, the nominal centre of the Fornax cluster. Within a velocity search range of 300-3700 km s-1 and to a 3σ lower flux limit of ∼40 mJy, 110 galaxies with Hi emission were detected, one of which is previously uncatalogued. None of the detections has early-type morphology. Previously unknown velocities for 14 galaxies have been determined, with a further four velocity measurements being significantly dissimilar to published values. Identification of an optical counterpart is relatively unambiguous for more than ∼90 per cent of our HI galaxies. The..

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