J/ApJS/237/11ivo://CDS.VizieR/J/ApJS/237/11doi:10.26093/cds/vizier.22370011CDSKeeney B.A.Stocke J.T.Pratt C.T.Davis J.D.Syphers D.Danforth C.W.,Shull J.M.Froning C.S.Green J.C.Penton S.V.Savage B.D.2021-01-25T11:24:41Z2018-10-16T08:03:19ZCDS support team

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

cds-question@unistra.frgalaxiesspectroscopyredshiftedvisible-astronomysloan-photometryintergalactic-mediumactive-galactic-nucleiTo establish the connection between galaxies and UV-detected absorption systems in the local universe, a deep (g<=20) and wide (~20' radius) galaxy redshift survey is presented around 47 sight lines to UV-bright AGNs observed by the Cosmic Origins Spectrograph (COS). Specific COS science team papers have used this survey to connect absorbers to galaxies, groups of galaxies, and large-scale structures, including voids. Here we present the technical details of the survey and the basic measurements required for its use, including redshifts for individual galaxies and uncertainties determined collectively by spectral class (emission-line, absorption-line, and composite spectra) and completeness for each sight line as a function of impact parameter and magnitude. For most of these sight lines, the design criteria of >90% completeness over a >1Mpc region down to <~0.1L* luminosities at z<=0.1 allows a plausible association between low-z absorbers and individual galaxies. Ly{alpha} covering fractions are computed to approximate the star-forming and passive galaxy populations using the spectral classes above. In agreement with previous results, the covering fraction of star-forming galaxies with L>=0.3L* is consistent with unity inside one virial radius and declines slowly to >50% at four virial radii. On the other hand, passive galaxies have lower covering fractions (~60%) and a shallower decline with impact parameter, suggesting that their gaseous halos are patchy but have a larger scale-length than star-forming galaxies.2018ApJS..237...11Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/237/11CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/hst : HST Archived Exposures Catalog (STScI, 2007)V/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)J/ApJ/559/654 : Ly{alpha} absorption systems. V. (Chen+, 2001)J/ApJ/701/1219 : Galaxy survey in 3 QSO fields (Chen+, 2009)J/ApJS/182/378 : HI and OVI absorbers in nearby Universe (Wakker+, 2009)J/ApJS/193/28 : Galaxy survey around 20 UV-bright quasars (Prochaska+, 2011)J/MNRAS/434/1765 : Catalog of galaxies around PKS 0405-123 (Johnson+, 2013)J/ApJ/791/128 : Basic data for spiral-rich group members (Stocke+, 2014)J/MNRAS/445/2061 : Absorption in multiphase circumgal. medium (Liang+, 2014)J/ApJ/815/91 : z<0.16 CIV absorbers from HST/COS spectra (Burchett+, 2015)J/ApJS/219/8 : SFR for WISE + SDSS spectroscopic galaxies (Chang+, 2015)J/ApJ/817/111 : HST/COS survey of z<0.9 AGNs. I. (Danforth+, 2016)J/ApJS/230/6 : HST-COS & -STIS absorption-line spec. II. (Keeney+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/237/11https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/237/11http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/237/11https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/237/11https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/237/11http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/237/11GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/237/11/slines (COS GTO and SDSS group sight lines surveyed (tables 1 and 4))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/237/11/slines?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/237/11/slines?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/237/11/slines?GETtext/xml+votable180.050000true157.827166750.89327780.005555555555555556Cone search capability for table J/ApJS/237/11/table6 (Galaxy redshift measurements)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/237/11/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/237/11/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/237/11/table6?GETtext/xml+votable180.050000true157.8387630650.888281110.0055555555555555565/1338 2259 2266 2804 7822 8487 8801 6/4821 4992 5122 5123 5128 5129 5226 5227 5244 5245 5246 5262 5263 5274 5284 5312 5313 5408 5409 5411 5423 5434 5437 5475 5480 5481 5483 5484 5731 5734 5737 5876 5877 5878 5935 5995 5998 6020 6021 6081 6084 6087 6093 6098 6104 6515 6518 6521 7505 7507 7508 7510 7885 7890 7891 7896 7897 7995 7998 8084 8913 8915 9031 9033 9035 9042 9048 9060 9262 9348 9349 10149 10151 10160 10162 10453 10538 10566 10567 10572 10573 10624 11013 11015 11024 15350 15351 15356 15357 17477 17479 17488 17490 18595 18601 18604 26270 26292 27714 27715 27720 27721 28081 28083 28084 28086 28353 28356 28358 28583 28589 28594 28600 31661 31662 31663 33947 35174 35175 35180 35181 46645 46647 46688 46690 47373 47375 47384 473862.381800341673347e-19 4.653515163505597e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/237/11?format=asciiOpticaldefaultJ/ApJS/237/11/slinesCOS GTO and SDSS group sight lines surveyed (tables 1 and 4)SimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSet"COS" GTO sight line or "SDSS" group sight linemeta.idcharNameSight line namemeta.id;spect.linecharf_Name[b] Flag on Name (1)meta.codecharNzNumber of galaxy redshift measurements for this sight line (link to table 6)meta.numberintnullableRAJ2000Hour of declination (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainzem[0.03/1.1] Emission redshift (2)src.redshiftfloatE(B-V)[0.004/0.2] Color excess (3)magphot.color.excessfloatAbbrevAbbreviated name used in galaxy identifier in Table 6meta.idcharprimaryCCompleteness results for this sight line (link to table 9)meta.ref.urlcharNEDNED column added by the CDSmeta.ref.urlcharJ/ApJS/237/11/table6Galaxy redshift measurementsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameGalaxy identifiermeta.id;meta.maincharRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainz[0/1] Galaxy spectroscopic redshiftsrc.redshiftdoublee_z[3e-05/1] Uncertainty in zstat.error;src.redshiftdoublegmag[13.4/28] SDSS g band apparent AB magnitudemagphot.mag;em.opt.Bfloatrmag[13/30.5] SDSS r band apparent AB magnitudemagphot.mag;em.opt.Rfloatimag[12.3/30.5] SDSS i band apparent AB magnitudemagphot.mag;em.opt.IfloatLum[3e-05/230]? Rest-frame g-band luminositysolLumphys.luminosity;em.optdoublenullableRvir[31.4/843.3]? Virial radiuskpcphys.size.radiusfloatnullablelogMh[9.2/13.6]? log halo masslog(solMass)phys.massfloatnullablelogM*[4.2/12.8]? log stellar masslog(solMass)phys.massfloatnullablerho[0/12923]? Impact parameter between the galaxy and AGN sight-line positionskpcpos.distance;src.impactParamfloatnullableFlag[-2/3]? Absorption flag (1)meta.code.errorintnullableAbbrevAbbreviated name of the sight line as used in Tables 1 and 4; column added by CDSmeta.idcharDR7+12Display the SDSS-DR7 (II/294) and SDSS-DR12 (V/147) photometric catalogs within 0.5"meta.ref.urlintnullableSloanDisplay the online SDSS data for the nearest objectmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/ApJS/237/11/table9Completeness tablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSight line identifiermeta.id;spect.linechargmagSDSS apparent g band magnitude binphot.magRinf5Completeness within 5 arcminutes R:{<=}5' (1)meta.notecharR5-10Completeness between 5 and 10 arcminutes (1)meta.notecharR10-15Completeness between 10 and 15 arcminutes (1)meta.notecharR15-20Completeness between 15 and 20 arcminutes (1)meta.notechar