J/MNRAS/485/3738ivo://CDS.VizieR/J/MNRAS/485/3738doi:10.26093/cds/vizier.74853738CDSLagattuta D.J.Richard J.Bauer F.E.Clement B.Mahler G.Soucail G.,Carton D.Kneib J.-P.Laporte N.Martinez J.Patricio V.Payne A.V.,Pello R.Schmidt K.B.de la Vieuville G.2024-08-19T20:17:35Z2022-11-22T14:23:27ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgravitational-lensingredshiftedhst-photometryastronomical-modelsWe present an updated strong-lensing analysis of the massive cluster Abell 370 (A370), continuing the work first presented in L17. In this new analysis, we take advantage of the deeper imaging data from the Hubble Space Telescope Frontier Fields programme, as well as a large spectroscopic mosaic obtained with the Multi-Unit Spectroscopic Explorer (MUSE). Thanks to the extended coverage of this mosaic, we probe the full 3D distribution of galaxies in the field, giving us a unique picture of the extended structure of the cluster and its surroundings. Our final catalogue contains 584 redshifts, representing the largest spectroscopic catalogue of A370 to date. Constructing the model, we measure a total mass distribution that is quantitatively similar to our previous work - though to ensure a low rms error in the model fit, we invoke a significantly large external shear term. Using the redshift catalogue, we search for other bound groups of galaxies, which may give rise to a more physical interpretation of this shear. We identify three structures in narrow redshift ranges along the line of sight, highlighting possible infalling substructures into the main cluster halo. We also discover additional substructure candidates in low-resolution imaging at larger projected radii. More spectroscopic coverage of these regions (pushing close to the A370 virial radius) and more extended, high-resolution imaging will be required to investigate this possibility, further advancing the analysis of these interesting developments.2019MNRAS.485.3738Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/485/3738CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/485/3738https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/485/3738http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/485/3738https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/485/3738https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/485/3738http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/485/3738GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/485/3738/table1 (Multiply imaged systems)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/485/3738/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/485/3738/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/485/3738/table1?GETtext/xml+votable180.050000true39.96704694-1.57691720.005555555555555556Cone search capability for table J/MNRAS/485/3738/tablec1 (Master MUSE Redshift Catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/485/3738/tablec1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/485/3738/tablec1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/485/3738/tablec1?GETtext/xml+votable180.050000true39.9773329-1.59958760.0055555555555555566/177412.0401237512456292e-19 3.9057996558789745e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/485/3738?format=asciidefaultJ/MNRAS/485/3738/table1Multiply imaged systemsSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintmIDMultiple Image ID ([LRC2017] A370 NN.N in Simbad)meta.id;meta.mainfloatRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainzspec? Spectroscopic redshift (1)src.redshiftfloatnullablezmod? Lens model predicted redshift (2)src.redshift;pos.heliocentricfloatnullablee_zmod? Error on zmodstat.errorfloatnullableClassMultiple Image constraint class (3)meta.code.qualcharNote? Notes on specific Multiple Images (4)meta.notecharJ/MNRAS/485/3738/tablea1aLens Models (goodness-of-fit statistics)logevidBest-fit model log(evidence) valuestat.paramfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintModelLens model namemeta.id;stat.param;meta.modelledcharnTotal number of model constraintsmeta.numberintkTotal number of model parametersmeta.numberintrmsBest-fit model rms errorarcsecstat.errorfloatchi2Best-fit model chi-squared per degree of freedomstat.fit.chi2floatloglikeBest-fit model log(likelihood) valuestat.likelihoodfloatBICBest-fit model Bayesian Information Criteriastat.paramfloatJ/MNRAS/485/3738/tablea1bLens Models (best-fit model parameters)E_PA? Upper error on PAdegstat.error;stat.maxfloatnullablef_PAFlag on PA (2)meta.codecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintModelLens model namemeta.id;stat.param;meta.modelledcharCompModel component namemeta.code.multipchardRA? Relative right ascension (1)arcsecpos.eq.ra;arith.difffloatnullablef_dRAFlag on dRA (2)meta.codecharE_dRA? Upper error on dRAarcsecstat.error;stat.maxfloatnullablee_dRA? Lower error on dRAarcsecstat.errorfloatnullabledDE? Relative declination (1)arcsecpos.eq.dec;arith.difffloatnullablef_dDEFlag on dDE (2)meta.codecharE_dDE? Upper error on dDEarcsecstat.error;stat.maxfloatnullablee_dDE? Lower error on dDEarcsecstat.errorfloatnullableell? Ellipticity (or shear magnitude) (3)src.ellipticityfloatnullablef_ellFlag on ell (2)meta.codecharE_ell? Upper error on ellstat.error;stat.maxfloatnullablee_ell? Lower error on ellstat.errorfloatnullablePA[]? Position angle (East of North)degpos.posAngfloatnullablee_PA? Lower error on PAdegstat.errorfloatnullablerCore? Core radius of dPIE potentialkpcphys.size.radiusfloatnullablef_rCoreFlag on rCore (2)meta.codecharE_rCore? Upper error on rCorekpcstat.error;stat.maxfloatnullablee_rCore? Lower error on rCorekpcstat.errorfloatnullablerCut? Cut radius of dPIE potentialkpcphys.size.radiusfloatnullablef_rCutFlag on rCut (2)meta.codecharE_rCut? Upper error on rCutkpcstat.error;stat.maxfloatnullablee_rCut? Lower error on rCutkpcstat.errorfloatnullablesig0? Central velocity dispersion of potentialkm/sphys.veloc.dispersionintnullableE_sig0? Upper error on sig0km/sstat.error;stat.maxintnullablee_sig0? Lower error on sig0km/sstat.errorintnullableJ/MNRAS/485/3738/tablec1Master MUSE Redshift CatalogSimbadNameSimbad column added by the CDSmeta.idcharnullablee_F125Wmag? Mean error on F125Wmagmagstat.errorfloatnullableF140Wmag? AB Magnitude (apparent) in F140W filter (4)magphot.mag;em.IR.Jfloatnullablee_F140Wmag? Mean error on F140Wmagmagstat.errorfloatnullableF160Wmag? AB Magnitude (apparent) in F160W filter (4)magphot.mag;em.IR.Hfloatnullablee_F160Wmag? Mean error on F160Wmagmagstat.errorfloatnullablemuLensing magnification (5)stat.paramdoublee_muMean error on mustat.errordoublemID? Multiply-Imaged object ID (6)meta.idcharlinesSummary of features seen in MUSE spectrummeta.id;spect.linecharIDObject ID (1)meta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainzMUSE redshiftsrc.redshiftfloatTypeSpectroscopic type flag (2)meta.codeintConfSpectroscopic confidence flag (3)meta.codeintF435Wmag? AB Magnitude (apparent) in F435W filter (4)magphot.mag;em.opt.Bfloatnullablee_F435Wmag? Mean error on F435Wmagmagstat.errorfloatnullableF606Wmag? AB Magnitude (apparent) in F606W filter (4)magphot.mag;em.opt.Rfloatnullablee_F606Wmag? Mean error on F606Wmagmagstat.errorfloatnullableF814Wmag? AB Magnitude (apparent) in F814W filter (4)magphot.mag;em.opt.Ifloatnullablee_F814Wmag? Mean error on F814Wmagmagstat.errorfloatnullableF105Wmag? AB Magnitude (apparent) in F105W filter (4)magphot.mag;em.IR.Jfloatnullablee_F105Wmag? Mean error on F105Wmagmagstat.errorfloatnullableF125Wmag? AB Magnitude (apparent) in F125W filter (4)magphot.mag;em.IR.JfloatnullableJ/MNRAS/485/3738/tabled1MUSE-GLASS Redshift ComparisonsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDMUSEObject ID in MUSE catalogmeta.id;meta.mainintzMUSEMUSE redshiftsrc.redshift;pos.heliocentricfloatcMUSEMUSE spectroscopic confidence flagmeta.code.qualintcMUSEnew? Updated MUSE spectroscopic confidence flagmeta.code.qualintnullableIDGLASSObject ID in GLASS catalogmeta.idintzGLASS? GLASS redshift (1)src.redshift;pos.heliocentricfloatnullablezGLASSnew? Updated GLASS redshiftsrc.redshift;pos.heliocentricfloatnullablecGLASSGLASS spectroscopic confidence flagmeta.code.qualfloatcGLASSnew? Updated GLASS spectroscopic confidence flagmeta.code.qualintnullableCommentsSummary of the comparison between MUSE and GLASS datameta.notechar