J/AJ/136/713ivo://CDS.VizieR/J/AJ/136/713doi:10.26093/cds/vizier.51360713CDSKent B.R.Giovanelli R.Haynes M.P.Martin A.M.Saintonge A.,Stierwalt S.Balonek T.J.Brosch N.Koopmann R.A.2010-01-28T08:04:46Z2010-01-28T08:56:33ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frsurveysh-i-line-emissionradio-galaxiesredshiftedWe present the third installment of HI sources extracted from the Arecibo Legacy Fast ALFA extragalactic survey. This data set continues the work of the Virgo ALFALFA catalog. The catalogs and spectra published here consist of data obtained during the 2005 and 2006 observing sessions of the survey. The catalog consists of 578 HI detections within the range 11h36m<RA(J2000)<13h52m and +08{deg}<DE(J2000)<+12{deg}, and cz_{sun}_<18000km/s. The catalog entries are matched with optical counterparts where possible through the examination of digitized optical images. The catalog detections can be classified into three categories: (a) detections of high reliability with a signal-to-noise ratio (S/N)>6.5; (b) high-velocity clouds in the Milky Way or its periphery; and (c) signals of lower S/N which coincide spatially with an optical object and known redshift. 75% of the sources are newly published HI detections. Of particular note is a complex of HI clouds projected between M87 and M49 that do not coincide with any optical counterparts. Candidate objects without optical counterparts are few. Position corrections for telescope pointing errors are applied to the data set by comparing the ALFALFA continuum centroid with those cataloged in the NRAO VLA Sky Survey (NVSS, Cat. VIII/65). The uncorrected positional accuracy averages 27"(21" median) for all sources with S/N>6.5 and is of order ~21"(16" median) for signals with S/N>12. Uncertainties in distances toward the Virgo cluster can affect the calculated HI mass distribution.2008AJ....136..713Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/136/713CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/77 : HI spectral properties of galaxies (Springob+, 2005)VIII/73 : HI Parkes All Sky Survey Catalogue (HIPASS) (Meyer+, 2004)J/AJ/113/905 : HI observations of galaxies (Pantoja+ 1997)J/MNRAS/357/819 : Colours and HI line observations in Virgo (Sabatini+, 2005)J/AJ/130/2613 : The Arecibo Legacy Fast ALFA survey. II (Giovanelli+, 2005)J/AJ/133/2569 : Arecibo legacy fast ALFA survey III. (Giovanelli+, 2007)J/AJ/135/588 : Arecibo legacy fast ALFA survey V. (Saintonge+, 2008)http://arecibo.tc.cornell.edu/hiarchive : ALFALFA data accesshttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/136/713https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/136/713http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/136/713https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/136/713https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/136/713http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/136/713GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/136/713/table1 (HI Candidate Detections)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/136/713/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/136/713/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/136/713/table1?GETtext/xml+votable180.050000true174.04458310.0511110.0055555555555555564/1733 5/6591 6616 6618 6628 6629 6633 6634 6635 6636 6640 6927 6931 6937 6938 6939 6940 6950 6951 6960 6976 6/26359 26363 26423 26429 26431 26443 26446 26468 26471 26478 26479 26480 26482 26483 26488 26490 26503 26507 26509 26510 26511 26520 26523 26524 26526 26528 26529 26531 26548 26549 26550 26552 26554 26564 26566 26568 26569 26570 27719 27723 27745 27747 27764 27765 27768 27769 27770 27783 27789 27791 27792 27793 27794 27796 27797 27799 27824 27825 27827 27828 27829 27830 27833 27844 27845 27846 27848 27849 27850 27908 27910 27912 27913 27914 27920https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/136/713?format=asciiOpticalRadiodefaultJ/AJ/136/713/notesComments from section 3.1recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintALFALFA3Catalog entry number (3-NNN)meta.id;meta.mainintNoteSection 3.1 commentmeta.notecharJ/AJ/136/713/table1HI Candidate DetectionsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintALFALFA3Catalog entry number (3-NNN)meta.id;meta.mainintprimaryn_ALFALFA3[*] Indicates additional comments in notes.dat filemeta.notecharAGCArecibo General Catalog number (Cat. VIII/77)meta.idintSpGet Image and spectrum from Arecibo (Cornell Univ.)meta.ref.urlcharRAJ2000Hour of Right Ascension (J2000) (1)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000) (1)pos.eq.dec;meta.mainRAO? Counterpart Right Ascension (J2000) (2)meta.id.assoc;pos.eq.ranullableDEO? Counterpart Declination (J2000) (2)meta.id.assoc;pos.eq.decnullableczHeliocentric velocity (3)km/sspect.dopplerVeloc;pos.heliocentricintW50Velocity width (4)km/sspect.line.widthinte_W50Error in W50 (5)km/sstat.errorintFcIntegrated flux density (6)Jy.km/sphot.flux.densityfloate_FcEstimated uncertainty in Fc (7)Jy.km/sstat.errorfloatS/NSignal-to-noise of detection (8)stat.snrfloatrmsNoise figure of spatially integrated spectral profile (9)mJymeta.bib.figfloatDist? Adopted distance (10)Mpcpos.distancefloatnullablelogM? Log of HI mass (11)log(solMass)phys.massfloatnullableQualSource quality code (12)meta.codeint