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The HIPASS catalogue - II. Completeness, reliability and parameter accuracy

Citation

Zwaan, MA and Meyer, MJ and Webster, RL and Staveley-Smith, L and Drinkwater, MJ and Barnes, DG and Bhathal, R and de Blok, WJG and Disney, MJ and Ekers, RD and Freeman, KC and Garcia, DA and Gibson, BK and Harnett, J and Henning, PA and Howlett, M and Jerjen, H and Kesteven, MJ and Kilborn, VA and Knezek, PM and Koribalski, BS and Mader, S and Marquarding, M and Minchin, RF and O'Brien, J and Oosterloo, T and Pierce, MJ and Price, RM and Putman, ME and Ryan-Weber, E and Ryder, SD and Sadler, EM and Stevens, JB and Stewart, IM and Stootman, F and Waugh, M and Wright, AE, The HIPASS catalogue - II. Completeness, reliability and parameter accuracy, Monthly Notices of the Royal Astronomical Society, 350, (4) pp. 1210-1219. ISSN 0035-8711 (2004) [Refereed Article]

DOI: doi:10.1111/j.1365-2966.2004.07782.x

Abstract

The H I Parkes All Sky Survey (HIPASS) is a blind extragalactic HI 21 -cm emission-line survey covering the whole southern sky from declination -90° to +25°. The HTPASS catalogue (HICAT), containing 4315 H I-selected galaxies from the region south of declination +2°, is presented in Meyer et al. (Paper I). This paper describes in detail the completeness and reliability of HICAT, which are calculated from the recovery rate of synthetic sources and follow-up observations, respectively. HICAT is found to be 99 per cent complete at a peak flux of 84 mJy and an integrated flux of 9.4 Jy km s -1. The overall reliability is 95 per cent, but rises to 99 per cent for sources with peak fluxes >58 mJy or integrated flux >8.2 Jy km s -1. Expressions are derived for the uncertainties on the most important HICAT parameters: peak flux, integrated flux, velocity width and recessional velocity. The errors on HICAT parameters are dominated by the noise in the HIPASS data, rather than by the parametrization procedure.

Item Details

Item Type:Refereed Article
Research Division:Physical Sciences
Research Group:Astronomical and Space Sciences
Research Field:Galactic Astronomy
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Physical Sciences
Author:Stevens, JB (Dr Jamie Stevens)
ID Code:46662
Year Published:2004
Web of Science® Times Cited:66
Deposited By:Physics
Deposited On:2007-08-28
Last Modified:2007-08-28
Downloads:0

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