J/ApJ/841/7ivo://CDS.VizieR/J/ApJ/841/7doi:10.26093/cds/vizier.18410007CDSBenson B.Wittman D.M.Golovich N.Jee M.J.van Weeren R.J.Dawson W.A.2019-10-10T12:55:18Z2018-02-06T11:05:56ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgalaxiesvisible-astronomyspectroscopyredshiftedZwCl 2341.1+0000, a merging galaxy cluster with disturbed X-ray morphology and widely separated (~3Mpc) double radio relics, was thought to be an extremely massive (10-30x10^14^M_{sun}_) and complex system, with little known about its merger history. We present JVLA 2-4GHz observations of the cluster, along with new spectroscopy from our Keck/DEIMOS survey, and apply Gaussian Mixture Modeling to the three-dimensional distribution of 227 confirmed cluster galaxies. After adopting the Bayesian Information Criterion to avoid overfitting, which we discover can bias high the total dynamical mass estimates, we find that a three-substructure model with a total dynamical mass estimate of 9.39+/-0.81x10^14^M_{sun}_ is favored. We also present deep Subaru imaging and perform the first weak lensing analysis on this system, obtaining a weak lensing mass estimate of 5.57+/-2.47x10^14^M_{sun}_. This is a more robust estimate because it does not depend on the dynamical state of the system, which is disturbed due to the merger. Our results indicate that ZwCl2341.1+0000 is a multiple merger system comprised of at least three substructures, with the main merger that produced the radio relics occurring near the plane of the sky, and a younger merger in the north occurring closer to the line of sight. Dynamical modeling of the main merger reproduces observed quantities (relic positions and polarizations, subcluster separation and radial velocity difference), if the merger axis angle of ~10_-6_^+34^ degrees and the collision speed at pericenter is ~1900_-200_^+300^km/s.2017ApJ...841....7Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/841/7CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/139 : The SDSS Photometric Catalog, Release 9 (Adelman-McCarthy+, 2012)J/ApJ/702/1230 : Rotation measure image of the sky (Taylor+, 2009)J/MNRAS/434/772 : Velocities in ZwCl2341.1+0000 field (Boschin+, 2013)J/ApJ/772/131 : Musket Ball Cluster redshift catalog (Dawson, 2013)J/ApJ/805/143 : MC2: redshift analysis of CIZA J2242.8+5301 (Dawson+, 2015)J/ApJ/813/77 : Galaxy clusters: radio halos, relics & param. (Yuan+, 2015)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/841/7https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/841/7http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/841/7https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/841/7https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/841/7http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/841/7GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/841/7/table2 (Spectroscopic cluster member catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/841/7/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/841/7/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/841/7/table2?GETtext/xml+votable180.050000true355.94704170.18143890.0055555555555555566/18779https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/841/7?format=asciiOpticaldefaultJ/ApJ/841/7/table2Spectroscopic cluster member catalogSimbadNameSimbad column added by the CDSmeta.idcharz[0.2587/0.2836] Redshiftsrc.redshiftdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000[23] Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[0] Declination (J2000)pos.eq.dec;meta.maine_z[/0.0002] Uncertainty on Redshiftstat.error;src.redshiftdoubleDR9+DR12Display data within 0.5" from SDSS -DR9 (V/139) and -DR12 (V/147)meta.ref.urlcharSloanDisplay the online SDSS data for the nearest objectmeta.ref.urlchar