J/ApJ/839/L11ivo://CDS.VizieR/J/ApJ/839/L11doi:10.26093/cds/vizier.18399011CDSZitrin A.Seitz S.Monna A.Koekemoer A.M.Nonino M.Gruen D.,Balestra I.Girardi M.Koppenhoefer J.Mercurio A.2022-05-05T13:22:22Z2021-06-16T12:25:55ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgravitational-lensingredshiftedhst-photometryspectroscopySince galaxy clusters sit at the high end of the mass function, the number of galaxy clusters both massive and concentrated enough to yield particularly large Einstein radii poses useful constraints on cosmological and structure formation models. To date, less than a handful of clusters are known to have Einstein radii exceeding ~40" (for a source at z_s_~2, nominally). Here, we report an addition to that list of the Sunyaev-Zel'dovich (SZ) selected cluster, PLCKG287.0+32.9 (z=0.38), the second-highest SZ-mass (M500) cluster from the Planck catalog. We present the first strong-lensing analysis of the cluster, identifying 20 sets of multiply imaged galaxies and candidates in new Hubble Space Telescope (HST) data, including a long, l~22" giant arc, as well as a quadruply imaged, apparently bright (magnified to J_F110W_=25.3 AB), likely high-redshift dropout galaxy at z_phot_=6.90 [6.13-8.43] (95% C.I.). Our analysis reveals a very large critical area (1.55arcmin^2^, z_s_~2), corresponding to an effective Einstein radius of {theta}_E_~42". The model suggests the critical area will expand to 2.58arcmin^2^ ({theta}_E_~54") for sources at z_s_~10. Our work adds to recent efforts to model very massive clusters toward the launch of the James Webb Space Telescope, in order to identify the most useful cosmic lenses for studying the early universe. Spectroscopic redshifts for the multiply imaged galaxies and additional HST data will be necessary for refining the lens model and verifying the nature of the z~7 dropout.2017ApJ...839L..11Zhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/839/L11CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/hst : HST Archived Exposures Catalog (STScI, 2007)J/ApJ/621/53 : Multiple arc systems in A1689 (Broadhurst+, 2005)J/A+A/536/A8 : Planck early results. VIII. ESZ sample. (Planck+, 2011)J/ApJS/199/25 : CLASH sources for MACS1149.6+2223 (Postman+, 2012)J/ApJ/792/76 : Lensed z~6-8 galaxies behind CLASH clusters (Bradley+, 2014)J/A+A/581/A14 : Updated Planck catalogue PSZ1 (Planck+, 2015)J/ApJ/801/44 : HST lensing analysis of the CLASH sample (Zitrin+, 2015)J/ApJ/819/114 : Strong lensing mass modeling of 4 HFF cl. (Kawamata+, 2016)J/ApJ/882/69 : Radio relic merging galaxy cl. substructures (Golovich+, 2019)J/ApJS/240/39 : Merging galaxy cluster deep observations (Golovich+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/839/L11https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/839/L11http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/839/L11https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/839/L11https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/839/L11http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/839/L11GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/839/L11/table1 (Multiple images and candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/839/L11/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/839/L11/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/839/L11/table1?GETtext/xml+votable180.050000true177.70603333-28.083905560.0055555555555555566/24735https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/839/L11?format=asciidefaultJ/ApJ/839/L11/table1Multiple images and candidatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDArc identifier (1)meta.id;meta.maincharRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainzphot[0.09/6.94]? Photometric redshiftsrc.redshiftfloatnullableb_zphot[0/6.2]? Lower 95% C.L. from BPZ on zphotmeta.notefloatnullableB_zphot[0.6/9]? Upper 95% C.L. from BPZ on zphotmeta.notefloatnullablezml[0.89/6.9]? Predicted redshift by our lens modelsrc.redshift;meta.modelledfloatnullableb_zml[0.7/2.2]? Lower 95% C.L. on zmlmeta.notefloatnullableB_zml[0.9/3]? Upper 95% C.L. on zmlmeta.notefloatnullableCommCommentsmeta.noteSimbadNameSimbad column added by the CDSmeta.idcharnullable