P
Patricia M. Knezek
Researcher at Johns Hopkins University
Publications - 44
Citations - 2571
Patricia M. Knezek is an academic researcher from Johns Hopkins University. The author has contributed to research in topics: Galaxy & Star formation. The author has an hindex of 21, co-authored 44 publications receiving 2478 citations. Previous affiliations of Patricia M. Knezek include Carnegie Institution for Science & ASTRON.
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Journal ArticleDOI
The HIPASS catalogue - I. Data presentation
Martin Meyer,Martin Meyer,Martin Zwaan,Martin Zwaan,Rachel L. Webster,Lister Staveley-Smith,Emma V. Ryan-Weber,Emma V. Ryan-Weber,Michael J. Drinkwater,David G. Barnes,M. Howlett,Virginia A. Kilborn,Jamie Stevens,M. Waugh,M. J. Pierce,R. Bhathal,W. J. G. de Blok,Michael John Disney,Ron Ekers,Kenneth C. Freeman,D. A. Garcia,Brad K. Gibson,J. Harnett,Patricia A. Henning,Helmut Jerjen,Michael Kesteven,Patricia M. Knezek,Baerbel Koribalski,Stacy Mader,M. Marquarding,Robert F. Minchin,J. O'Brien,Tom Oosterloo,R. M. Price,Mary E. Putman,Stuart D. Ryder,Elaine M. Sadler,Ian M. Stewart,F. Stootman,Alan E. Wright +39 more
TL;DR: The HIPASS catalogue as mentioned in this paper is the largest uniform catalogue of H I sources compiled to date, with 4315 sources identified purely by their H I content, and the catalogue data comprise the southern region δ< + 2 ◦ of HIPASS, the first blind H I survey to cover the entire southern sky.
Journal ArticleDOI
Evidence for a nonuniform initial mass function in the local universe
Gerhardt R. Meurer,O. I. Wong,O. I. Wong,Ji Hoon Kim,D. J. Hanish,Timothy M. Heckman,Jessica K. Werk,Joss Bland-Hawthorn,Michael A. Dopita,Martin Zwaan,Bärbel S. Koribalski,Mark Seibert,David A. Thilker,Henry C. Ferguson,Rachel L. Webster,Mary E. Putman,Patricia M. Knezek,M. T. Doyle,Michael J. Drinkwater,Charles G. Hoopes,Virginia A. Kilborn,Martin Meyer,Emma V. Ryan-Weber,Robert Connon Smith,Lister Staveley-Smith +24 more
TL;DR: In this paper, the extinction-corrected flux ratio FHα/f FUV from these two tracers of star formation shows strong correlations with the surface brightness in Hα and the R band: low surface brightness (LSB) galaxies have lower FH α/f f FUV ratios compared to high surface brightness galaxies as well as compared to expectations from equilibrium models of constant star formation rate (SFR) using commonly favored IMF parameters.
Journal ArticleDOI
Tidal disruption of the Magellanic Clouds by the Milky Way
Mary E. Putman,Brad K. Gibson,Lister Staveley-Smith,Glen B. Banks,David G. Barnes,R. Bhatal,M. J. Disney,Ron Ekers,Kenneth C. Freeman,R. F. Haynes,P. A. Henning,Helmut Jerjen,Virginia A. Kilborn,Bärbel S. Koribalski,Patricia M. Knezek,David Malin,Jeremy Mould,Tom Oosterloo,R. M. Price,Stuart D. Ryder,Elaine M. Sadler,Ian M. Stewart,F. Stootman,R. A. Vaile,Rachel L. Webster,Alan E. Wright +25 more
TL;DR: In this paper, an atomic-hydrogen survey of the Magellanic Clouds is presented, which reveals a new stream of gas that lies in the opposite direction to the trailing Magellan Stream and leads the motion of the Clouds.
Journal ArticleDOI
The HIPASS catalogue - III. Optical counterparts and isolated dark galaxies
M. T. Doyle,Michael J. Drinkwater,David Rohde,Kevin A. Pimbblet,Mike Read,Martin Meyer,Martin Meyer,Martin Zwaan,Emma V. Ryan-Weber,Emma V. Ryan-Weber,Jamie Stevens,Baerbel Koribalski,Rachel L. Webster,Lister Staveley-Smith,David G. Barnes,M. Howlett,Virginia A. Kilborn,Virginia A. Kilborn,M. Waugh,M. J. Pierce,Ragbir Bhathal,W. J. G. de Blok,M. J. Disney,Ron Ekers,Kenneth C. Freeman,D. A. Garcia,Bradley Kenneth Gibson,J. Harnett,P. A. Henning,Helmut Jerjen,Michael Kesteven,Patricia M. Knezek,Stacy Mader,M. Marquarding,Robert F. Minchin,Jake W. O'Brien,Tom Oosterloo,R N Price,Mary E. Putman,Stuart D. Ryder,Elaine M. Sadler,Ian M. Stewart,F. Stootman,Alan E. Wright +43 more
TL;DR: In this article, the authors presented the largest catalogue to date of optical counterparts for H I radio-selected galaxies, HOPCAT, for the Parkes All Sky Survey (HIPASS).
Journal ArticleDOI
The Northern HIPASS catalogue - data presentation, completeness and reliability measures
O. I. Wong,O. I. Wong,Emma V. Ryan-Weber,Emma V. Ryan-Weber,D. A. Garcia-Appadoo,D. A. Garcia-Appadoo,Rachel L. Webster,Lister Staveley-Smith,Martin Zwaan,Michael J. Meyer,David G. Barnes,Virginia A. Kilborn,Virginia A. Kilborn,Ragbir Bhathal,W. J. G. de Blok,Michael John Disney,M. T. Doyle,Michael J. Drinkwater,Ron Ekers,Kenneth C. Freeman,Brad K. Gibson,Sebastián Gurovich,J. Harnett,Patricia A. Henning,Helmut Jerjen,Michael Kesteven,Patricia M. Knezek,Bärbel S. Koribalski,Stacy Mader,M. Marquarding,Robert F. Minchin,Jake W. O'Brien,Mary E. Putman,Stuart D. Ryder,Elaine M. Sadler,J. Stevens,J. Stevens,Ian M. Stewart,F. Stootman,M. Waugh,M. Waugh +40 more
TL;DR: The Northern HIPASS catalogue (NHICAT) as mentioned in this paper is the northern extension of the HIPASS catalog, HICAT, which adds the sky area between the declination (Dec) range of +2 degrees 300 km s(-1).