The 1000 brightest HIPASS galaxies: Newly cataloged galaxies

Ryan-Weber, E., Koribalski, B. S., Staveley-Smith, L., Jerjen, H., Kraan-Korteweg, R. C., Ryder, S. D., Barnes, D. G., de Blok, W. J. G., Kilborn, V. A., Bhathal, R., Boyce, P. J., Disney, M. J., Drinkwater, M. J., Ekers, R. D. and Freeman, K. C. (2002) The 1000 brightest HIPASS galaxies: Newly cataloged galaxies. The Astronomical Journal, 124 4: 1954-1974. doi:10.1086/342546

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Author Ryan-Weber, E.
Koribalski, B. S.
Staveley-Smith, L.
Jerjen, H.
Kraan-Korteweg, R. C.
Ryder, S. D.
Barnes, D. G.
de Blok, W. J. G.
Kilborn, V. A.
Bhathal, R.
Boyce, P. J.
Disney, M. J.
Drinkwater, M. J.
Ekers, R. D.
Freeman, K. C.
Title The 1000 brightest HIPASS galaxies: Newly cataloged galaxies
Journal name The Astronomical Journal   Check publisher's open access policy
ISSN 0004-6256
1538-3881
Publication date 2002-10
Year available 2002
Sub-type Article (original research)
DOI 10.1086/342546
Open Access Status File (Publisher version)
Volume 124
Issue 4
Start page 1954
End page 1974
Total pages 21
Place of publication Madison, WI, United States
Publisher Institute of Physics Publishing
Language eng
Abstract The H I Parkes All-Sky Survey (HIPASS) is a blind 21 cm survey for extragalactic neutral hydrogen, covering the whole southern sky. The HIPASS Bright Galaxy Catalog (BGC) is a subset of HIPASS and contains the 1000 H I brightest (peak flux density) galaxies. Here we present the 138 HIPASS BGC galaxies that had no redshift measured prior to the Parkes multibeam H I surveys. Of the 138 galaxies, 87 are newly cataloged. Newly cataloged is defined as having no optical ( or infrared) counterpart in the NASA/IPAC Extragalactic Database. Using the Digitized Sky Survey, we identify optical counterparts for almost half of the newly cataloged galaxies, which are typically of irregular or Magellanic morphological type. Several H I sources appear to be associated with compact groups or pairs of galaxies rather than an individual galaxy. The majority ( 57) of the newly cataloged galaxies lie within 10degrees of the Galactic plane and are missing from optical surveys as a result of confusion with stars or dust extinction. This sample also includes newly cataloged galaxies first discovered by Henning et al. in the H I shallow survey of the zone of avoidance. The other 30 newly cataloged galaxies escaped detection because of their low surface brightness or optical compactness. Only one of these, HIPASS J0546-68, has no obvious optical counterpart, as it is obscured by the Large Magellanic Cloud. We find that the newly cataloged galaxies with -b->10degrees are generally lower in H I mass and narrower in velocity width compared with the total HIPASS BGC. In contrast, newly cataloged galaxies behind the Milky Way are found to be statistically similar to the entire HIPASS BGC. In addition to these galaxies, the HIPASS BGC contains four previously unknown H I clouds.
Keyword Astronomy & Astrophysics
Galaxies
Galaxies
Galaxies
Radio Emission Lines
Surveys
Surface-brightness Galaxies
Neutral Hydrogen Survey
Blind Hi Survey
Dwarf Galaxies
Spiral Galaxies
Northern Dwarf
Mass Function
Milky-way
Avoidance
Zone
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown
Additional Notes Authors of this document: Ryan-Weber, E; Koribalski, BS; Staveley-Smith, L; Jerjen, H; Kraan-Korteweg, RC; Ryder, SD; Barnes, DG; de Blok, WJG; Kilborn, VA; Bhathal, R; Boyce, PJ; Disney, MJ; Drinkwater, MJ; Ekers, RD; Freeman, KC; Gibson, BK; Green, AJ; Haynes, RF; Henning, PA; Juraszek, S; Kesteven, MJ; Knezek, PM; Mader, S; Marquarding, M; Meyer, M; Minchin, RF; Mould, JR; OBrien, J; Oosterloo, T; Price, RM; Putman, ME; Sadler, EM; Schroder, A; Stewart, IM; Stootman, F; Waugh, M; Webster, RL; Wright, AE; Zwaan, MA.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Physical Sciences Publications
 
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Created: Mon, 13 Aug 2007, 13:10:37 EST