J/ApJ/693/152ivo://CDS.VizieR/J/ApJ/693/152doi:10.26093/cds/vizier.16930152CDSOemler A.Dressler A.Kelson D.Rigby J.Poggianti B.M.Fritz J.,Morrison G.Smail I.2018-01-08T06:37:46Z2011-03-23T13:49:12ZCDS support team

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

cds-question@unistra.frgalaxy-clustersline-intensitiesredshiftedgalaxy-classification-systemsWe use extensive new observations of the very rich z~0.4 cluster of galaxies A851 (Cl 0939+47) to examine the nature and origin of starburst galaxies in intermediate-redshift clusters. New HST observations, 24um Spitzer photometry and ground-based spectroscopy cover most of a region of the cluster about 10' across, corresponding to a cluster-centric radial distance of about 1.6Mpc. This spatial coverage allows us to confirm the existence of a morphology-density relation within this cluster, and to identify several large, presumably infalling, subsystems. We confirm our previous conclusion that a very large fraction of the star-forming galaxies in A851 has recently undergone starbursts. We argue that starbursts are mostly confined to two kinds of sites: infalling groups and the cluster center.2009ApJ...693..152Ohttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/693/152CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/142/153 : Distant galaxy clusters photometry (Stanford+, 2002)J/ApJS/122/51 : Spectroscopic catalog of 10 rich galaxy clusters (Dressler+,J/ApJS/110/213 : Morphological Types in 10 Distant Rich Clusters (Smail+ 1997)J/A+A/323/337 : Abell 851 morphological segregation (Andreon+ 1997)J/A+AS/118/65 : BRI + redshifts in Cl0939+472 + Cl0016+161 (Belloni+, 1996)J/A+A/297/61 : E+A galaxies in Cl0939+472 (Belloni+, 1995)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/693/152https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/693/152http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/693/152https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/693/152https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/693/152http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/693/152GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/693/152/table1 (A851 region spectroscopic sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/693/152/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/693/152/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/693/152/table1?GETtext/xml+votable180.050000true145.760958346.94511110.005555555555555556Cone search capability for table J/ApJ/693/152/table3 (Field galaxy sample 0.30<=z<=0.55)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/693/152/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/693/152/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/693/152/table3?GETtext/xml+votable180.050000true212.812252.17220.0055555555555555566/247 5857 5860 9007 9831 10743 17741 19846 19848 33175 357596.772611666688002e-21 1.000830682546041e-20https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/693/152?format=asciiOpticaldefaultJ/ApJ/693/152/table1A851 region spectroscopic samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDGalaxy index number (<[ODK2009] NNN> in Simbad)meta.id;meta.mainintprimaryn_IDSimbad column added by the CDSmeta.ref.urlcharRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainzRedshift (spectroscopic)src.redshiftfloatq_zSpectrum/redshift quality indicator (1=excellent; 4=poor)meta.code.qual;src.redshiftint[OII]? Rest frame equivalent widths of [OII]0.1nmspect.line.eqWidthintnullableW(Hd)? Rest frame equivalent widths of H{delta}0.1nmspect.line.widthfloatnullableW(Hd)a? Rest frame width of the H{delta} absorption line, only measured for stronger linesspect.line.widthfloatnullableClassSpectral class (G1)src.spTypecharrmagGunn r magnitude (1)magphot.mag;em.opt.RfloatSpecIDSpectrum id (2)meta.id;obscharSimbadSimbad column added by the CDSmeta.refcharJ/ApJ/693/152/table2A851 cluster sampleIDGalaxy index numbermeta.id;meta.mainintzRedshiftsrc.redshiftfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintq_zSpectrum quality/redshift reliability (1=excellent; 3=fair)meta.code.qual;src.redshiftint[OII]? [OII] rest frame equivalent width0.1nmspect.line.eqWidthintnullableW(Hd)? H{delta} rest frame equivalent width0.1nmspect.line.widthfloatnullableHd? Excess H{delta} strength (1)spect.line.intensityfloatnullableW(Hd)a? Rest frame width of the H{delta} absorption line, only measured for stronger linesspect.line.widthintnullableClassSpectral class (G1)src.spTypecharl_F24Limit flag on F24 (2)meta.code.errorcharF24? Spitzer/MIPS 24um fluxJyphot.flux.density;em.IR.15-30umdoublenullableMorphMorphological type (3)src.morph.typecharIntOut best guess about the nature of distortions (4)meta.codecharalpha{Delta}{alpha} galaxy coordinate relative to the cluster centerarcsecpos.eq.ra;arith.difffloatdelta{Delta}{delta} galaxy coordinate relative to the cluster centerarcsecpos.eq.dec;arith.difffloatGroupSubgroup membership (Core, N or NW) (5)meta.idcharJ/ApJ/693/152/table3Field galaxy sample 0.30<=z<=0.55SimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClCluster field from which the galaxy was obtainedmeta.id.parentcharIDGalaxy index number (1)spect.indexintzRedshiftsrc.redshiftfloatq_zSpectrum quality/redshift reliability (1=excellent; 3=fair)meta.code.qual;src.redshiftint[OII]? [OII] rest-frame equivalent width0.1nmspect.line.eqWidthintnullableW(Hd)? H{delta} rest-frame equivalent width in {AA}0.1nmspect.line.widthfloatnullableHd? Excess H{delta} strengthspect.line.intensityfloatnullableW(Hd)a? Rest-frame width of the H{delta} absorption line, only measured for stronger linesspect.line.widthintnullableClassSpectral class (G1)src.spTypecharMorphMorphological type (2)src.morph.typecharIntOut best guess about the nature of the distortion (3)meta.codechar_RAPositions, from table1 or Dressler et al. 1999, Cat. J/ApJS/122/51 (right ascension part)degpos.eq.ra;meta.main_DEPositions, from table1 or Dressler et al. 1999, Cat. J/ApJS/122/51 (declination part)degpos.eq.dec;meta.main