J/A+A/579/A4ivo://CDS.VizieR/J/A+A/579/A4doi:10.26093/cds/vizier.35790004CDSGirardi M.Mercurio A.Balestra I.Nonino M.Biviano A.Grillo C.,Rosati P.Annunziatella M.Demarco R.Fritz A.Gobat R.Lemze D.,Presotto V.Scodeggio M.Tozzi P.Bartosch Caminha G.Brescia M.,Coe D.Kelson D.Koekemoer A.Lombardi M.Medezinski E.Postman M.,Sartoris B.Umetsu K.Zitrin A.Boschin W.Czoske O.De Lucia G.,Kuchner U.Maier C.Meneghetti M.Monaco P.Monna A.Munari E.,Seitz S.Verdugo M.Ziegler B.2017-12-21T15:26:27Z2015-06-19T08:26:54ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgalaxiesphotometryredshiftedspectroscopyIn the effort to understand the link between the structure of galaxy clusters and their galaxy populations, we focus on MACS J1206.2-0847 at z~0.44 and probe its substructure in the projected phase space through the spectrophotometric properties of a large number of galaxies from the CLASH-VLT survey. Our analysis is mainly based on an extensive spectroscopic dataset of 445 member galaxies, mostly acquired with VIMOS@VLT as part of our ESO Large Programme, sampling the cluster out to a radius ~2R200 (4Mpc). We classify 412 galaxies as passive, with strong Hdelta absorption (red and blue galaxies), and with emission lines from weak to very strong. A number of tests for substructure detection are applied to analyze the galaxy distribution in the velocity space, in 2D space, and in 3D projected phase-space. The observational scenario agrees with MACS J1206.2-0847 having WNW-ESE as the direction of the main cluster accretion, traced by passive galaxies and red strong H{delta} galaxies. The red strong H{delta} galaxies, interpreted as poststarburst galaxies, date a likely important event 1-2Gyr before the epoch of observation. The emission line galaxies trace a secondary, ongoing infall where groups are accreted along several directions.2015A&A...579A...4Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/579/A4CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/749/97 : Multiple lensed images in MCS J1206.2-0847 (Zitrin+, 2012)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/579/A4https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/579/A4http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/579/A4https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/579/A4https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/579/A4http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/579/A4GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/579/A4/table2 (Spectral classification of 412 member galaxies of MACS 1206.2-0847)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/579/A4/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/579/A4/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/579/A4/table2?GETtext/xml+votable180.050000true181.7297917-8.94158330.0055555555555555566/25451 25454https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/579/A4?format=asciiOpticaldefaultJ/A+A/579/A4/table2Spectral classification of 412 member galaxies of MACS 1206.2-0847Seq[1/412] Running ID for galaxiesmeta.id;meta.mainintprimaryRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainz[0.427/0.453] Spectroscopic redshiftsrc.redshiftfloatB-Rc[0.27/2.49] Johnson-Cousins B-R color indexmagphot.color;em.opt.B;em.opt.Rfloate_B-Rc[0.01/0.3] rms uncertainty on B-Rcmagstat.error;phot.color;em.opt.BfloatEW([OII])[-99/-1.5]? Equivalent width of [OII] (1)0.1nmspect.line.eqWidthfloatnullablee_EW([OII])[0/88] rms uncertainty on EW([OII])0.1nmstat.errorfloatEW(Hd)[-31/15.2] Equivalent width of H{delta}0.1nmspect.line.eqWidth;em.line.Hdeltafloate_EW(Hd)[0.2/21] rms uncertainty on EW(Hd)0.1nmstat.errorfloatClassSpectral classification (3)spect.indexcharNote[a] Note (2)meta.notecharSimbadSimbad column added by the CDSmeta.ref.urlchar