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ASKAP HI imaging of the galaxy group IC 1459

Serra, P.; Kilborn, Virginia A; Koribalski, Baerbel S; Allison, J.R.; Amy, S.W.; Ball, Lewis; Bannister, Keith; Bell, M.; Bock, D. C.-J.; Bolton, R.; Bowen, M.; Boyle, B.; Broadhurst, S.; Brodrick, D.; Brothers, M.; Bunton, John D.; Chapman, J.; Cheng, W.; Chippendale, A.P.; Chung, Y.; Cooray, F.; Cornwell, T.; DeBoer, D.; Diamond, P.; Forsyth, R.; Gough, R; Hampson, G.; Harvey-Smith, L.; Hayman, D.B.; Hotan, A.W.; McClure-Griffiths, Naomi


We present H I imaging of the galaxy group IC 1459 carried out with six antennas of the Australian Square Kilometre Array Pathfinder equipped with phased-array feeds. We detect and resolve H I in 11 galaxies down to a column density of ∼1020 cm−2 inside a ∼6 deg2 field and with a resolution of ∼1 arcmin on the sky and ∼8 km s−1 in velocity. We present H I images, velocity fields and integrated spectra of all detections, and highlight the discovery of three H I clouds – two in the proximity of...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stv1326
Access Rights: Open Access


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