The H I Parkes All Sky Survey (HIPASS) is a large survey for neutral atomic hydrogen (H I).[1] Most of the data was taken between 1997 and 2002 using CSIRO's 64 m Parkes Telescope. HIPASS covered 71% of the sky and identified more than 5000 galaxies; the major galaxy catalogs are: the "HIPASS Bright Galaxy Catalog" (HIPASS BGC),[2] the southern HIPASS catalog (HICAT),[3] and the northern HIPASS catalog (NHICAT)[4] Discoveries include over 5000 galaxies (incl. several new galaxies), the Leading Arm of the Magellanic Stream and a few gas clouds devoid of stars.
HIPASS covers a velocity range of −1,280 to 12,700 km/s. It was the first blind HI survey to cover the entire southern sky and the northern sky up to +25°. Technical overview, calibration and imaging (Barnes et al. 2001).
Southern Sky observationsedit
Observations of the southern sky started in February 1997, and were completed in March 2000, consisting of 23,020 eight-degree scans of each of 9 minutes duration. HIPASS scanned the entire southern sky five times. The southern HIPASS galaxy catalog (HICAT)[3] contains 4315 HI sources.
Northern Sky observationsedit
Northern HIPASS extended the survey into the northern sky. The entire Virgo Cluster region was observed in Northern HIPASS. NHICAT,[4] the catalogue of the northern extension of HIPASS contains 1,002 H I sources.
CHIPASSedit
Archival data from HIPASS and the HI Zone of Avoidance (HIZOA) survey were reprocessed to make a new 20cm confusion-limited continuum map of the sky south of declination +25°. Its relatively high sensitivity and resolution (compared to other single-dish surveys) and low level of artefacts has made this survey invaluable, particularly for merging with interferometric data such as WALLABY to improve the coverage of extended structure.[5]
Multibeam Receiveredit
Observations for HIPASS were taken using the Parkes 21-cm Multibeam Receiver.[6] The instrument consists of a focal-plane array of 13 individual receivers arranged in a hexagonal pattern.[6] Built in a collaboration between numerous institutions, it was funded by the Australian Research Council (ARC) and the Australia Telescope National Facility (ATNF) to undertake the HIPASS and ZOA surveys.
Discoveriesedit
Leading arm of Magellanic Streamedit
HIPASS discovered the Leading Arm of the Magellanic Stream. This is an extension of the Magellanic Stream beyond the Magellanic clouds. The existence of the Leading Arm is predicted by models of a tidal interaction between the Magellanic Clouds and the Milky Way.
HIPASS J0731-69edit
HIPASS J0731-69 is a cloud of gas devoid of any stars.[7] It is associated with the asymmetric spiral galaxy NGC 2442.[7] It is likely that HIPASS J0731-69 was torn loose from NGC 2442 by a companion.[7]
HIPASS J1712-64edit
HIPASS J1712-64 is an isolated extragalactic cloud of neutral hydrogen with no associated stars.[8] The cloud is a binary system and is not dense enough to form stars.[8] HIPASS J1712-64 was probably ejected during an interaction between the Magellanic clouds and the Milky way.
New galaxies in the Centaurus A/M83 Groupedit
Ten new galaxies were identified in the Centaurus A/M83 Group, bringing the total (at the time) to 31 galaxies.[9]
^Koribalski, B. S.; et al. (2004). "HIPASS Bright Galaxy Catalog". The Astronomical Journal. 128 (1): 16. arXiv:astro-ph/0404436. Bibcode:2004AJ....128...16K. doi:10.1086/421744. S2CID 16229767.
^ abMeyer, M. J.; et al. (2004). "Southern HIPASS catalog". Monthly Notices of the Royal Astronomical Society. 350 (4): 1195. arXiv:astro-ph/0406384. Bibcode:2004MNRAS.350.1195M. doi:10.1111/j.1365-2966.2004.07710.x. S2CID 10336076.
^ abWong, O. I.; et al. (2006). "Northern HIPASS Catalog". Monthly Notices of the Royal Astronomical Society. 371 (4): 1855–1864. arXiv:astro-ph/0607491. Bibcode:2006MNRAS.371.1855W. doi:10.1111/j.1365-2966.2006.10846.x. S2CID 22014830.
^Calabretta, Mark R.; Staveley-Smith, Lister; Barnes, David G. (2014). "A New 1.4 GHz Radio Continuum Map of the Sky South of Declination +25°". Publications of the Astronomical Society of Australia. 31: e007. arXiv:1310.2414. Bibcode:2014PASA...31....7C. doi:10.1017/pasa.2013.36. ISSN 1323-3580.
^ abcRyder, S.D.; et al. (July 2001). "HIPASS Detection of an Intergalactic Gas Cloud in the NGC 2442 Group". The Astrophysical Journal. 555 (1): 232–239. arXiv:astro-ph/0103099. Bibcode:2001ApJ...555..232R. doi:10.1086/321453. S2CID 14455875.
^ abKilborn V.A.; et al. (September 2002). "An Extragalactic H I Cloud with No Optical Counterpart?". The Astronomical Journal. 120 (3): 1342. arXiv:astro-ph/0005267. Bibcode:2000AJ....120.1342K. doi:10.1086/301542. S2CID 11668655.
^Banks D.G.; et al. (October 1999). "New Galaxies Discovered in the First Blind H I Survey of the Centaurus A Group". The Astrophysical Journal. 524 (2): 612–622. arXiv:astro-ph/9906146. Bibcode:1999ApJ...524..612B. doi:10.1086/307854. S2CID 118921426.
hipass, parkes, survey, large, survey, neutral, atomic, hydrogen, most, data, taken, between, 1997, 2002, using, csiro, parkes, telescope, covered, identified, more, than, 5000, galaxies, major, galaxy, catalogs, bright, galaxy, catalog, southern, catalog, hic. The H I Parkes All Sky Survey HIPASS is a large survey for neutral atomic hydrogen H I 1 Most of the data was taken between 1997 and 2002 using CSIRO s 64 m Parkes Telescope HIPASS covered 71 of the sky and identified more than 5000 galaxies the major galaxy catalogs are the HIPASS Bright Galaxy Catalog HIPASS BGC 2 the southern HIPASS catalog HICAT 3 and the northern HIPASS catalog NHICAT 4 Discoveries include over 5000 galaxies incl several new galaxies the Leading Arm of the Magellanic Stream and a few gas clouds devoid of stars HIPASSWebsitewww wbr atnf wbr csiro wbr au wbr research wbr multibeam wbr edit on Wikidata Contents 1 Survey 1 1 Southern Sky observations 1 2 Northern Sky observations 1 3 CHIPASS 2 Multibeam Receiver 3 Discoveries 3 1 Leading arm of Magellanic Stream 3 2 HIPASS J0731 69 3 3 HIPASS J1712 64 3 4 New galaxies in the Centaurus A M83 Group 4 See also 5 ReferencesSurvey editHIPASS covers a velocity range of 1 280 to 12 700 km s It was the first blind HI survey to cover the entire southern sky and the northern sky up to 25 Technical overview calibration and imaging Barnes et al 2001 Southern Sky observations edit Observations of the southern sky started in February 1997 and were completed in March 2000 consisting of 23 020 eight degree scans of each of 9 minutes duration HIPASS scanned the entire southern sky five times The southern HIPASS galaxy catalog HICAT 3 contains 4315 HI sources Northern Sky observations edit Northern HIPASS extended the survey into the northern sky The entire Virgo Cluster region was observed in Northern HIPASS NHICAT 4 the catalogue of the northern extension of HIPASS contains 1 002 H I sources CHIPASS edit Archival data from HIPASS and the HI Zone of Avoidance HIZOA survey were reprocessed to make a new 20cm confusion limited continuum map of the sky south of declination 25 Its relatively high sensitivity and resolution compared to other single dish surveys and low level of artefacts has made this survey invaluable particularly for merging with interferometric data such as WALLABY to improve the coverage of extended structure 5 Multibeam Receiver editObservations for HIPASS were taken using the Parkes 21 cm Multibeam Receiver 6 The instrument consists of a focal plane array of 13 individual receivers arranged in a hexagonal pattern 6 Built in a collaboration between numerous institutions it was funded by the Australian Research Council ARC and the Australia Telescope National Facility ATNF to undertake the HIPASS and ZOA surveys Discoveries editLeading arm of Magellanic Stream edit HIPASS discovered the Leading Arm of the Magellanic Stream This is an extension of the Magellanic Stream beyond the Magellanic clouds The existence of the Leading Arm is predicted by models of a tidal interaction between the Magellanic Clouds and the Milky Way HIPASS J0731 69 edit HIPASS J0731 69 is a cloud of gas devoid of any stars 7 It is associated with the asymmetric spiral galaxy NGC 2442 7 It is likely that HIPASS J0731 69 was torn loose from NGC 2442 by a companion 7 HIPASS J1712 64 edit HIPASS J1712 64 is an isolated extragalactic cloud of neutral hydrogen with no associated stars 8 The cloud is a binary system and is not dense enough to form stars 8 HIPASS J1712 64 was probably ejected during an interaction between the Magellanic clouds and the Milky way New galaxies in the Centaurus A M83 Group edit Ten new galaxies were identified in the Centaurus A M83 Group bringing the total at the time to 31 galaxies 9 See also editHIJASS the H I Jodrell All Sky SurveyReferences edit HI Parkes All Sky Survey homepage Koribalski B S et al 2004 HIPASS Bright Galaxy Catalog The Astronomical Journal 128 1 16 arXiv astro ph 0404436 Bibcode 2004AJ 128 16K doi 10 1086 421744 S2CID 16229767 a b Meyer M J et al 2004 Southern HIPASS catalog Monthly Notices of the Royal Astronomical Society 350 4 1195 arXiv astro ph 0406384 Bibcode 2004MNRAS 350 1195M doi 10 1111 j 1365 2966 2004 07710 x S2CID 10336076 a b Wong O I et al 2006 Northern HIPASS Catalog Monthly Notices of the Royal Astronomical Society 371 4 1855 1864 arXiv astro ph 0607491 Bibcode 2006MNRAS 371 1855W doi 10 1111 j 1365 2966 2006 10846 x S2CID 22014830 Calabretta Mark R Staveley Smith Lister Barnes David G 2014 A New 1 4 GHz Radio Continuum Map of the Sky South of Declination 25 Publications of the Astronomical Society of Australia 31 e007 arXiv 1310 2414 Bibcode 2014PASA 31 7C doi 10 1017 pasa 2013 36 ISSN 1323 3580 a b Multibeam Receiver Archived from the original on 2000 08 19 a b c Ryder S D et al July 2001 HIPASS Detection of an Intergalactic Gas Cloud in the NGC 2442 Group The Astrophysical Journal 555 1 232 239 arXiv astro ph 0103099 Bibcode 2001ApJ 555 232R doi 10 1086 321453 S2CID 14455875 a b Kilborn V A et al September 2002 An Extragalactic H I Cloud with No Optical Counterpart The Astronomical Journal 120 3 1342 arXiv astro ph 0005267 Bibcode 2000AJ 120 1342K doi 10 1086 301542 S2CID 11668655 Banks D G et al October 1999 New Galaxies Discovered in the First Blind H I Survey of the Centaurus A Group The Astrophysical Journal 524 2 612 622 arXiv astro ph 9906146 Bibcode 1999ApJ 524 612B doi 10 1086 307854 S2CID 118921426 Portals nbsp Astronomy nbsp Stars nbsp Spaceflight nbsp Outer space nbsp Solar System Retrieved from https en wikipedia org w index php title HIPASS amp oldid 1095695116, wikipedia, wiki, book, books, library,
