J/ApJ/869/6ivo://CDS.VizieR/J/ApJ/869/6doi:10.26093/cds/vizier.18690006CDSDeger S.Rudnick G.Kelkar K.Aragon-Salamanca A.Desai V.Lotz J.M.,Jablonka P.Moustakas J.Zaritsky D.2020-04-08T08:49:51Z2019-12-27T13:51:32ZCDS support team

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

cds-question@unistra.frgalaxy-clustersredshiftedgalaxy-kinematicsWe study the fraction of tidal interactions and mergers (TIMs) with well-identified observability timescales (f_TIM_) in group, cluster, and accompanying field galaxies and its dependence on redshift (z), cluster velocity dispersion ({sigma}), and environment analyzing Hubble Space Telescope/ACS images and catalogs from the ESO Distant Cluster Survey. Our sample consists of 11 clusters, seven groups, and accompanying field galaxies at 0.4<=z<=0.8. We derive f_TIM_ using both a visual classification of galaxy morphologies and an automated method, the G-M_20_ method. We calibrate this method using the visual classifications that were performed on a subset of our sample. We find marginal evidence for a trend between f_TIM_ and z, in that higher z values correspond to higher f_TIM_. However, we also cannot rule out the null hypothesis of no correlation at higher than 68% confidence. No trend is present between f_TIM_ and {sigma}. We find that f_TIM_ shows suggestive peaks in groups, and tentatively in clusters at R>0.5xR_200_, implying that f_TIM_ gets boosted in these intermediate-density environments. However, our analysis of the local densities of our cluster sample does not reveal a trend between f_TIM_ and density, except for a potential enhancement at the very highest densities. We also perform an analysis of projected radius-velocity phase space for our cluster members. Our results reveal that TIM and undisturbed galaxies only have a 6% probability of having been drawn from the same parent population in their velocity distribution and 37% in radii, in agreement with the modest differences obtained in f_TIM_ at the clusters.2018ApJ...869....6Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/869/6CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/265 : COSMOS Morphological Catalog (V1.1) (Tasca+ 2009)J/ApJ/496/39 : Properties of poor groups of galaxies. I. (Zabludoff+ 1998)J/ApJ/542/673 : Morphological types of galaxies in clusters (Fasano+, 2000)J/ApJS/137/117 : Las Campanas Distant Cluster Survey (LCDCS) (Gonzales+, 2001)J/AJ/122/2205 : HDF-South K photometric redshift catalog (Rudnick+, 2001)J/ApJ/588/218 : i*g* photometry of SDSS EDR galaxies (Abraham+, 2003)J/ApJS/147/1 : Classification of nearby galaxies (Conselice+, 2003)J/A+A/427/397 : Redshifts of 5 EDisCS galaxy clusters (Halliday+, 2004)J/AJ/128/163 : Galaxy morphological classification (Lotz+, 2004)J/A+A/444/365 : ESO Distant Cluster Survey, EDisCS (White+, 2005)J/ApJ/660/1151 : Morphology of galaxies in 10 EDisCS clusters (Desai+, 2007)J/A+A/482/419 : ESO Distant Cluster Survey, EDisCS. II (Milvang-Jensen+, 2008)J/A+A/524/A6 : Evolution of spectral early-type galaxies (Saglia+, 2010)J/ApJ/850/181 : Spectroscopic analysis of EDisCS clusters (Rudnick+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/869/6https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/869/6http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/869/6https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/869/6https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/869/6http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/869/6GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/869/6/table1 (The EDisCS-HST sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/869/6/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/869/6/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/869/6/table1?GETtext/xml+votable180.050000true160.1733-11.93080.005555555555555556Cone search capability for table J/ApJ/869/6/table3 (Spectroscopic cluster & group members)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/869/6/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/869/6/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/869/6/table3?GETtext/xml+votable180.050000true160.172917-11.9488610.005555555555555556Cone search capability for table J/ApJ/869/6/table4 (Photometric cluster members)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/869/6/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/869/6/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/869/6/table4?GETtext/xml+votable180.050000true160.210833-11.9030.0055555555555555565/6354 6/25071 25327 25415 25484 25667 26654 26676 26677 26689 26691 26694 26720https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/869/6?format=asciidefaultJ/ApJ/869/6/table1The EDisCS-HST samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSetCl=Cluster; G=Groupmeta.codecharFieldStructure namemeta.id;meta.maincharprimarym_FieldComponent on structure namemeta.code.multipcharz[0.4/0.8] Redshiftsrc.redshiftfloatsigma[179/1080] Cluster velocity dispersionphys.veloc.dispersioninte_sigma[26/110] Negative uncertainty on sigmastat.errorintE_sigma[36/119] Positive uncertainty on sigmastat.error;stat.maxintNph+sp[24/102]? Number of phot+spec members (1)meta.numberintnullableNspec[2/36] Number of spectroscopically confirmed members (1)meta.numberintNspNumber of spectroscopic members (link to Table 3)meta.numberintnullableNpNumber of photometric members (link to Table 4)meta.numberintnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/ApJ/869/6/table3Spectroscopic cluster & group membersCl[TIMtim0] Visual Class (1)meta.code.classcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSet[CGF] Subset: (C)luster or (G)roup member; (F)ield Galaxymeta.codecharEDCSNGalaxy ID (JHHMMSSs+DDMMSSs; <EDCS JHHMMSSs+DDMMSSs> in Simbad)meta.id;src.class.starGalaxycharFieldCluster or Field namemeta.id.parentcharzspec[0.4/0.9] Galaxy Spectroscopic Redshiftsrc.redshiftfloatlogM[10.4/11.8] Log10 Galaxy stellar masslog(solMass)src.class.starGalaxyfloatG[0.3/0.7] Galaxy Gini coefficient (G1)stat.fit.paramfloatM20[-2.5/-0.7] Galaxy M20 value (G1)stat.variancefloatf_Cl[*] *: changed the visual classification by Kelkar+ (2017MNRAS.469.4551K)meta.codecharECatDisplay data from the EDisCS catalogs (White+, 2005, J/A+A/444/365 and Desai+, 2007, J/ApJ/660/1151)meta.ref.urlintnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight ascension (derived from EDCSN) for Eq=J2000degpos.eq.ra;meta.main_DEDeclination (derived from EDCSN) for Eq=J2000degpos.eq.dec;meta.mainJ/ApJ/869/6/table4Photometric cluster membersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSet[CF] Subset, (C)luster member or (F)ield galaxymeta.codecharEDCSNGalaxy ID (JHHMMSSs+DDMMSSs)meta.id;src.class.starGalaxycharFieldCluster or Field namemeta.id.parentcharlogM[10.4/13.3] Log10 Galaxy stellar masslog(solMass)src.class.starGalaxyfloatG[0.3/1] Galaxy Gini coefficient (G1)stat.fit.paramfloatM20[-2.6/-0.7] Galaxy M20 value (G1)stat.variancefloatECatDisplay data from the EDisCS catalogs (White+, 2005, J/A+A/444/365 and Desai+, 2007, J/ApJ/660/1151)meta.ref.urlintnullable_RARight ascension (derived from EDCSN) for Eq=J2000degpos.eq.ra;meta.main_DEDeclination (derived from EDCSN) for Eq=J2000degpos.eq.dec;meta.main