HIDEEP - an Extragalactic Blind Survey for Very Low Column-density Neutral Hydrogen

Minchin, R F; Disney, Mike J; Boyce, Peter; de Blok, W J G; Parker, Quentin A; Banks, G D; Freeman, Kenneth; Garcia, Diego A; Gibson, Bradley K; Grossi, Marco; Haynes, R F; Knezek, Patricia M; Lang, Robert; Malin, David; Price, R N; Stewart, Ian M; Wright, A E

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HIDEEP - an Extragalactic Blind Survey for Very Low Column-density Neutral Hydrogen

Date

2003

Authors

Minchin, R F

Disney, Mike J

Boyce, Peter

de Blok, W J G

Parker, Quentin A

Banks, G D

Freeman, Kenneth

Garcia, Diego A

Gibson, Bradley K

Grossi, Marco

Publisher

Blackwell Publishing Ltd

Abstract

We have carried out an extremely long integration time (9000 s beam-1) 21-cm blind survey of 60 deg2 in Centaurus using the Parkes multibeam system. We find that the noise continues to fall as √tobs throughout, enabling us to reach an HI column-density