The Arecibo Legacy Fast ALFA Survey. VIII. H I source catalog of the anti-Virgo region at δ = +25 degrees

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The Arecibo Legacy Fast ALFA Survey. VIII. H I source catalog of the anti-Virgo region at δ = +25 degrees

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dc.contributor.author Martin, A. M.
dc.contributor.author Haynes, M. P.
dc.contributor.author Giovanelli, R.
dc.contributor.author Hoffman, G. Lyle
dc.contributor.author Saintonge, A.
dc.contributor.author Stierwalt, S.
dc.contributor.author Kent, B. R.
dc.date.accessioned 2010-02-23T16:03:13Z
dc.date.available 2010-02-23T16:03:13Z
dc.date.issued 2009-08
dc.identifier.citation Martin, A. M., et al. (2009.) "The Arecibo Legacy Fast ALFA Survey. VIII. H I source catalog of the anti-Virgo region at δ = +25 degrees." Astrophysical Journal Supplement Series 183 (2) :214–224 en_US
dc.identifier.uri http://hdl.handle.net/10385/601
dc.description.abstract We present a fourth catalog of H i sources from the Arecibo Legacy Fast ALFA (ALFALFA) Survey. We report 541 detections over 136 deg2, within the region of the sky having 22h < α < 03h and 24◦ < δ < 26◦. This complements a previous catalog in the region 26◦ < δ < 28◦. We present here the detections falling into three classes: (1) extragalactic sources with signal-to-noise ratio (S/N) > 6.5, where the reliability of the catalog is better than 95%; (2) extragalactic sources 5.0 < S/N < 6.5 and a previously measured optical redshift that corroborates our detection; or (3) High Velocity Clouds (HVCs), or subcomponents of such clouds, in the periphery of the MilkyWay. Of the 541 objects presented here, 90 are associated with HVCs, while the remaining 451 are identified as extragalactic objects. Optical counterparts have been matched with all but one of the extragalactic objects. en_US
dc.publisher Astrophysical Journal Supplement Series en_US
dc.subject galaxies: photometry en_US
dc.subject galaxies: distances and redshifts en_US
dc.subject catalogs en_US
dc.subject surveys en_US
dc.subject radio lines: galaxies en_US
dc.subject galaxies: spiral en_US
dc.title The Arecibo Legacy Fast ALFA Survey. VIII. H I source catalog of the anti-Virgo region at δ = +25 degrees en_US
dc.type Article en_US
dc.identifier.doi 10.1088/0067-0049/183/2/214

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