J/MNRAS/502/4743ivo://CDS.VizieR/J/MNRAS/502/4743doi:10.26093/cds/vizier.75024743CDSHuang Y.-H.Chen H.-W.Shectman S.A.Johnson S.D.Zahedy F.S.,Helsby J.E.Gauthier J.-R.Thompson I.B.2024-08-21T20:17:13Z2023-11-16T10:32:41ZCDS support team

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

cds-question@unistra.frgalaxiesquasarsredshiftedline-intensitiesspectroscopyultraviolet-astronomyvisible-astronomyThis paper presents a survey of MgII absorbing gas in the vicinity of 380 random galaxies, using 156 background quasi-stellar objects (QSOs) as absorption-line probes. The sample comprises 211 isolated (73 quiescent and 138 star-forming galaxies) and 43 non-isolated galaxies with sensitive constraints for both MgII absorption and H{alpha} emission. The projected distances span a range from d=9 to 497kpc, redshifts of the galaxies range from z=0.10 to 0.48, and rest-frame absolute B-band magnitudes range from M_B_=-16.7 to -22.8. Our analysis shows that the rest-frame equivalent width of MgII, W_r_(2796), depends on halo radius (R_h_), B-band luminosity(L_B_), and stellar mass (M_star_) of the host galaxies, and declines steeply with increasing d for isolated, star-forming galaxies. At the same time, W_r_(2796) exhibits no clear trend for either isolated, quiescent galaxies or non-isolated galaxies. In addition, the covering fraction of MgII absorbing gas <{kappa}> is high with <{kappa}>>=60 per cent at <40kpc for isolated galaxies and declines rapidly to <{kappa}>~0 at d>=100 kpc. Within the gaseous radius, the incidence of MgII gas depends sensitively on both M_star_ and the specific star formation rate inferred from H{alpha}. Different from what is known for massive quiescent haloes, the observed velocity dispersion of MgII absorbing gas around star-forming galaxies is consistent with expectations from virial motion, which constrains individual clump mass to m_cl_>~10^5^M_{sun}_ and cool gas accretion rate of ~0.7-2M_{sun}_/yr. Finally, we find no strong azimuthal dependence of MgII absorption for either star-forming or quiescent galaxies. Our results demonstrate that multiple parameters affect the properties of gaseous haloes around galaxies and highlight the need of a homogeneous, absorption-blind sample for establishing a holistic description of chemically enriched gas in the circumgalactic space.2021MNRAS.502.4743Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/502/4743CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/294 : The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/502/4743https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/502/4743http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/502/4743https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/502/4743https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/502/4743http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/502/4743GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/502/4743/table1 (Summary of Faint Galaxy Spectroscopy)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/502/4743/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/502/4743/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/502/4743/table1?GETtext/xml+votable180.050000true1.4512083-8.79923610.005555555555555556Cone search capability for table J/MNRAS/502/4743/table2 (Summary of the MagE spectroscopic observations of SDSS QSOs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/502/4743/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/502/4743/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/502/4743/table2?GETtext/xml+votable180.050000true1.451-8.80234440.0055555555555555566/4105 4111 4133 4157 4162 4176 4191 4200 4241 4256 4266 4368 4738 4740 4742 4751 4754 4760-4761 4774 8244 8281-8282 8344 8347 8359 8392 8737 12394 17244 17259 17324 17500 17522 17559 17575 17725 17751-17752 17755 17767 17817 17998 18005 18020 18023 18067 18078 18519 18526 18540 18542 18552 18625 18686-18687 18769 18773 18777 18780 18856 19038 19087 19096 19383 19405 19456 19458 19670 19690 21851 21854 21873 21972 21983 22006 22366 22718 23050-23051 23145 23185 23188 23210 23216 23233 25844 25919 25946 25955 26021 26025 26100 26111 26209 26227 26252 26278 26284 26328 26428 26460 26473 26483 26491 26560 26975 26997 27006 27084 27229 27251 27254 27310 27320 27332 27349 27396 27398 27467 27497 27512 27526 27542 27548 27587 27709 27722 27739 27789 27791 27818 27862 27932 30040 30042 30046 31311 31331 31393 31434 31454 31476 31622 36723 36784 36789 36792 36802 49015 49085 49122https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/502/4743?format=asciiUVOpticaldefaultJ/MNRAS/502/4743/table1Summary of Faint Galaxy SpectroscopySimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMoreLink to Tables 3a and 3bmeta.ref.urlcharNameGalaxy name (SDSSJHHMMSS.ss+DDMMSS.ss)meta.id;meta.maincharprimaryRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainzphot? Photometric redshiftsrc.redshiftfloatnullablee_zphot? Error on zphotstat.errorfloatnullablermagr-band magnitudemagphot.mag;em.opt.RfloatInstInstrument used for the observations (1)instr.setupcharExpTimeExposure timestime.duration;obs.exposurecharDateUT observation datetime.epoch;obsnullableJ/MNRAS/502/4743/table2Summary of the MagE spectroscopic observations of SDSS QSOsSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameQSO name (SDSSJHHMMSS.ss+DDMMSS.ss)meta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainzQSOSpectroscopic redshift of the QSOsrc.redshift;pos.heliocentricfloatumagu-band magnitudemagphot.mag;em.opt.UfloatExpTimeExposure timestime.duration;obs.exposurecharDateUT observation datetime.epoch;obscharJ/MNRAS/502/4743/table3aIsolated galaxies and absorption systemsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintzgalGalaxy redshiftsrc.redshiftfloatNameGalaxy name (SDSSJHHMMSS.ss+DDMMSS.ss)meta.id;meta.mainchardRAOffset in right ascension of the MgII absorberarcsecpos.eq.ra;arith.difffloatdDEOffset in declination of the MgII absorberarcsecpos.eq.dec;arith.difffloatDistDistancekpcpos.distancefloatrmagr-band magnitudemagphot.mag;em.opt.RfloatBMAGRest-frame absolute B-band magnitudemagphys.magAbsfloatlogMassLogarithm of the stellar masslog(solMass)phys.massfloatRhHalo radiuskpcphys.size.radiusfloatl_EWHaLimit flag on EWHameta.code.errorcharEWHa? H{alpha} equivalent width0.1nmspect.line.eqWidthfloatnullablee_EWHa? Error on EWHa0.1nmstat.errorfloatnullablezabs? Redshift of the MgII absorbersrc.redshiftfloatnullablel_W2796Limit flag on W2796meta.code.errorcharW2796? MgII {lambda}2796 equivalent width0.1nmspect.line.eqWidthfloatnullablee_W2796? Error on W27960.1nmstat.errorfloatnullableJ/MNRAS/502/4743/table3bNon-isolated galaxies and absorption systemsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameGalaxy name (SDSSJHHMMSS.ss+DDMMSS.ss)meta.id;meta.mainchardRAOffset in right ascension of the MgII absorberarcsecpos.eq.ra;arith.difffloatdDEOffset in declination of the MgII absorberarcsecpos.eq.dec;arith.difffloatzgalGalaxy redshiftsrc.redshiftfloatDistDistancekpcpos.distancefloatrmagr-band magnitudemagphot.mag;em.opt.RfloatBMAGRest-frame absolute B-band magnitudemagphys.magAbsfloatlogMassLogarithm of the stellar masslog(solMass)phys.massfloatRhHalo radiuskpcphys.size.radiusfloatl_EWHaLimit flag on EWHameta.code.errorcharEWHa? H{alpha} equivalent width0.1nmspect.line.eqWidthfloatnullablee_EWHa? Error on EWHa0.1nmstat.errorfloatnullablezabs? Redshift of the MgII absorbersrc.redshiftfloatnullablel_W2796Limit flag on W2796meta.code.errorcharW2796? MgII {lambda}2796 equivalent width0.1nmspect.line.eqWidthfloatnullablee_W2796? Error on W27960.1nmstat.errorfloatnullable