J/ApJ/762/L30ivo://CDS.VizieR/J/ApJ/762/L30doi:10.26093/cds/vizier.17629030CDSZitrin A.Meneghetti M.Umetsu K.Broadhurst T.Bartelmann M.,Bouwens R.Bradley L.Carrasco M.Coe D.Ford H.Kelson D.,Koekemoer A.M.Medezinski E.Moustakas J.Moustakas L.A.Nonino M.,Postman M.Rosati P.Seidel G.Seitz S.Sendra I.Shu X.Vega J.,Zheng W.2014-11-08T14:29:34Z2014-10-22T09:45:41ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgravitational-lensingredshiftedsurveysWe perform a strong lensing analysis of the merging galaxy cluster MACS J0416.1-2403 (M0416; z=0.42) in recent CLASH/HST observations. We identify 70 new multiple images and candidates of 23 background sources in the range 0.7<~z_phot_<~6.14 including two probable high-redshift dropouts, revealing a highly elongated lens with axis ratio =~5:1, and a major axis of ~100" (z_s_~2). Compared to other well-studied clusters, M0416 shows an enhanced lensing efficiency. Although the critical area is not particularly large (=~0.6{squ}'; z_s_~2), the number of multiple images, per critical area, is anomalously high. We calculate that the observed elongation boosts the number of multiple images, per critical area, by a factor of ~2.5x, due to the increased ratio of the caustic area relative to the critical area. Additionally, we find that the observed separation between the two main mass components enlarges the critical area by a factor of ~2. These geometrical effects can account for the high number (density) of multiple images observed. We find in numerical simulations that only ~4% of the clusters (with M_vir_>=6x10^14^h^-1^M_{sun}_) exhibit critical curves as elongated as in M0416.2013ApJ...762L..30Zhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/762/L30CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/hst : HST Archived Exposures Catalog (STScI, 2007)J/ApJS/211/21 : Spectroscopic redshifts of galaxies in MACS (Ebeling+, 2014)J/A+A/562/A86 : CLASH. Photometric + photo-z catalog (Jouvel+, 2014)J/ApJ/757/22 : Strong and weak lensing analysis of A2261 (Coe+, 2012)J/ApJ/749/97 : Multiple lensed images in MCS J1206.2-0847 (Zitrin+, 2012)J/ApJS/199/25 : CLASH sources for MACS1149.6+2223 (Postman+, 2012)J/ApJ/723/1678 : LensPerfect A1689 analysis (Coe+, 2010)J/AJ/132/926 : Galaxies in the Hubble Ultra Deep Field (Coe+, 2006)J/MNRAS/372/1425 : Abelle 1689 gravitational lensing analysis (Halkola+, 2006)J/ApJ/621/53 : Multiple arc systems in A1689 (Broadhurst+, 2005)J/ApJS/150/1 : VV29 and NGC 4676 HST photometry (Benitez+, 2004)http://www.stsci.edu/~postman/CLASH : CLASH home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/762/L30https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/762/L30http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/762/L30https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/762/L30https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/762/L30http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/762/L30GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/762/L30/table1 (Multiple-image systems and candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/762/L30/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/762/L30/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/762/L30/table1?GETtext/xml+votable180.050000true64.04075-24.061591670.0055555555555555566/34793https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/762/L30?format=asciiOpticaldefaultJ/ApJ/762/L30/table1Multiple-image systems and candidatesB_zph[0.7/6.7]? Upper 95% confidence limit on zphstat.fit.paramfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintArcIDArc identifier \dicS{[ZMU2013] AAAAA} in Simbad (1)meta.id;meta.maincharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainzph[0.3/6.2]? Photometric redshift (2)src.redshiftfloatnullableb_zph[0.1/3.2]? Lower 95% confidence limit on zphstat.fit.paramfloatnullablezNFW[1/6.8]? System redshift predicted by eNFW (4)stat.paramfloatnullableb_zNFW? Lower 95% confidence limit on zNFWstat.fit.paramfloatnullableB_zNFW? Upper 95% confidence limit on zNFWstat.fit.paramfloatnullableDNFW[0.3/4.2]? Reproduction distance {Delta}NFW (3)arcsecpos.angDistancefloatnullablezGau[1/6.3]? System redshift predicted by eGaussian (elliptical Gaussian) modelstat.paramfloatnullableb_zGau? Lower 95% confidence limit on zGaustat.fit.paramfloatnullableB_zGau? Upper 95% confidence limit on zGaustat.fit.paramfloatnullableDGau[0.2/3.8]? Reproduction distance {Delta}Gauss (3)arcsecpos.angDistancefloatnullableCommAdditional commentsmeta.notechar