J/MNRAS/516/824ivo://CDS.VizieR/J/MNRAS/516/824doi:10.26093/cds/vizier/bg-g4-srCDSBell C.P.M.Cioni M.-R.L.Wright A.H.Nidever D.L.Chiang I.-D.,Choudhury S.Groenewegen M.A.T.Pennock C.M.Choi Y.De Grijs R.,Ivanov V.D.Massana P.Nanni A.Noel N.E.D.Olsen K.Van Loon J.T.,Vivas A.K.Zaritsky D.2026-08-03T07:31:57Z2025-09-19T15:21:44ZCDS support team

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

cds-question@unistra.frmagellanic-cloudsgalaxiesactive-galactic-nucleiphotometryvisible-astronomyinfrared-astronomyredshiftedextinctionastrometryWe present a map of the total intrinsic reddening across ~= 90 deg^2^ of the Large Magellanic Cloud (LMC) derived using optical (ugriz) and near-infrared (IR; YJKs) spectral energy distributions (SEDs) of background galaxies. The reddening map is created from a sample of 222752 early-type galaxies based on the LEPHARE_{Chi}^2^_ minimization SED-fitting routine. We find excellent agreement between the regions of enhanced intrinsic reddening across the central (4 * 4 deg^2^) region of the LMC and the morphology of the low-level pervasive dust emission as traced by far-IR emission. In addition, we are able to distinguish smaller, isolated enhancements that are coincident with known star-forming regions and the clustering of young stars observed in morphology maps. The level of reddening associated with the molecular ridge south of 30 Doradus is, however, smaller than in the literature reddening maps. The reduced number of galaxies detected in this region, due to high extinction and crowding, may bias our results towards lower reddening values. Our map is consistent with maps derived from red clump stars and from the analysis of the star formation history across the LMC. This study represents one of the first large-scale categorizations of extragalactic sources behind the LMC and as such we provide the lephare outputs for our full sample of ~ 2.5 million sources.2022MNRAS.516..824Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/516/824CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/504/1 : VMC RR Lyrae in LMC (Cusano+, 2021)J/MNRAS/506/3540 : ASKAP-EMU ESP LMC Radio Continuum Survey (Pennock+, 2021)J/MNRAS/499/993 : Small Magellanic Cloud's background galaxies (Bell+, 2020)J/MNRAS/504/2983 : Reddening of SMC red clump stars (Tatton+, 2021)J/MNRAS/508/245 : VMC survey XLIII. LMC star formation history (Mazzi+, 2021)J/MNRAS/472/808 : YJKs light curves of SMC Classical Cepheids (Ripepi+, 2017)J/MNRAS/504/1 : VMC RR Lyrae in LMC (Cusano+, 2021)J/MNRAS/473/3131 : VMC survey. XXVI. SMC RR Lyrae stars (Muraveva+, 2018)J/A+A/628/A51 : Magellanic Clouds reddening map (Joshi+, 2019)J/A+A/616/A187 : SMC clusters age-dating & classification (Nayak+, 2018)J/A+A/625/A14 : Reclassification of Cepheids in the Gaia DR2 (Ripepi+, 2019)J/A+A/619/A8 : Cepheid period-luminosity-metallicity relationJ/A+A/620/A99 : SMC Cepheids K-band and RV curves (Gieren+, 2018)J/ApJ/699/539 : Cepheids in SN-Ia host galaxies (Riess+, 2009)J/ApJ/876/85 : HST observations for LMC Cepheids (Riess+, 2019)J/ApJ/832/176 : Classical Cepheids in MCs. I. LMC disk (Inno+, 2016)J/ApJ/775/92 : MQS III: AGNs behind LMC and SMC (Kozlowski+, 2013)J/ApJS/252/23 : E(V-I) reddening map of MCs from OGLE-IV RC starsJ/ApJS/194/22 : Magellanic Quasars Survey: QSOs behind SMC (Kozlowski+,2011)J/ApJ/892/105 : Fourth catalog of Fermi LAT-detected AGNs (4LAC)J/ApJ/746/27 : Magellanic Quasars Survey. II. AGNs behind LMCJ/AJ/154/199 : SMASH: Survey of the MAgellanic Stellar HistoryJ/AJ/123/855 : Magellanic Clouds Photometric Survey: the SMCJ/AJ/114/2353 : AGNs and QSOs behind nearby galaxies (Crampton+, 1997)J/A+A/549/A29 : Quasars behind the Magellanic system (Cioni+, 2013)J/A+A/545/A128 : SMC XMM-Newton images (Haberl+, 2012)VII/237 : HYPERLEDA. I. Catalog of galaxies (Paturel+, 2003)VII/294 : The Million Quasars (Milliquas) catalogue, version 8VII/259 : 6dF galaxy survey final redshift release (Jones+, 2009)II/375 : VISTA Magellanic Survey (VMC) catalog (YJKs) DR6II/382 : VIKING catalogue data release 4 (Cross+, 2012)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/516/824https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/516/824http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/516/824https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/516/824https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/516/824http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/516/824GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/516/824/table1 (A LEPHARE output for the sources in the full LMC sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/516/824/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/516/824/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/516/824/table1?GETtext/xml+votable180.050000true73.77041-75.727490.005555555555555556Cone search capability for table J/MNRAS/516/824/table2 (A LEPHARE output for our AGN sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/516/824/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/516/824/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/516/824/table2?GETtext/xml+votable180.050000true74.13216-74.393120.005555555555555556Cone search capability for table J/MNRAS/516/824/table3 (Spectroscopically determined and photometric redshifts for AGN behind the LMC)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/516/824/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/516/824/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/516/824/table3?GETtext/xml+votable180.050000true90.434125-72.63666670.0055555555555555564/2065 2067-2068 5/8257-8259 8264-8265 8276-8278 8280-8281 9352 9354 9376 9378 9384 9386 9728 6/32863 32885 33027 33069 33071 33116 33118 33128-33130 33132-33133 33136-33138 37384 37386 37510 37516 37518 37540 37542https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/516/824?format=asciiOpticalInfrareddefaultJ/MNRAS/516/824/table1A LEPHARE output for the sources in the full LMC samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDRaw identifier number (ID)meta.id;meta.mainintRAJ2000Right ascension (J2000) (RA)degpos.eq.ra;meta.mainindexedDEJ2000Declination (J2000) (Dec)degpos.eq.dec;meta.mainindexedzBESTBest-fitting photometric redshift (z_BEST_)src.redshift.photdoubleb_zBEST[] Lower bound zBEST - 1{sigma} standard deviation corresponding to 16th percentile of the posterior (z_BEST,low_)src.redshift.phot;stat.mindoubleB_zBEST[] Upper bound zBEST + 1{sigma} standard deviation corresponding to 84th percentile of the posterior (z_BEST,high_)src.redshift.phot;stat.maxdoublezML? The maximum likelihood photometric redshift (z_ML_)src.redshift.photdoublenullableb_zML[]? Lower bound zML - 1{sigma} standard deviation corresponding to 16th percentile of the posterior (z_ML,low_)src.redshift.phot;stat.mindoublenullableB_zML[]? High bound zML + 1{sigma} standard deviation corresponding to 84thth percentile of the posterior (z_ML,high)src.redshift.phot;stat.maxdoublenullableTempGThe best-fitting galaxy SEDs template correponds to AVEROI_NEW templates in Paper I Bell et al. 2019MNRAS.489.3200B (Template_G/Q) (1)meta.id;stat.fitintChi2GAssociated {Chi}^2^ value for the best-fitting galaxy template (Chi2_G/Q)stat.fit.chi2doubleE(B-V)Best-fitting reddening E(B-V) value (E_B-V_)magphot.color.excessdoubleDMBest-fitting distance modulus (Dist_mod)magphot.mag.distModdoubleNbandsNumber of photometric bands in the SED (No._bands)meta.numberintContextCombination of photometric bands in the SED (Context) (2)meta.code;arithintTempSBest-fitting stellar template (Template_S)meta.id;stat.fitintChi2SAssociated {Chi}^2^ value for the best-fitting stellar template (Chi2_S)stat.fit.chi2doubleJ/MNRAS/516/824/table2A LEPHARE output for our AGN sampleb_zML[]? Lower bound zML - 1{sigma} standard deviation corresponding to 16th percentile of the posterior (z_ML,low_)src.redshift.phot;stat.mindoublenullableB_zML[]? High bound zML + 1{sigma} standard deviation corresponding to 84thth percentile of the posterior (z_ML,high)src.redshift.phot;stat.maxdoublenullableTempQThe best-fitting quasars SEDs template correponds to AVEROI_NEW templates in Paper I Bell et al. 2019MNRAS.489.3200B (Template_Q_) (1)meta.id;stat.fitintChi2QAssociated {Chi}^2^ value for the best-fitting quasars template (Chi2_Q_)stat.fit.chi2doubleE(B-V)Best-fitting reddening E(B-V) value (E_B-V_)magphot.color.excessdoubleDMBest-fitting distance modulus (Dist_mod)magphot.mag.distModdoubleNbandsNumber of photometric bands in the SED (No._bands)meta.numberintContextCombination of photometric bands in the SED (Context) (Context) (2)meta.code;arithintTempSBest-fitting stellar template (Template_S)meta.id;stat.fitintChi2SAssociated {Chi}^2^ value for the best-fitting stellar template (Chi2_S_)stat.fit.chi2doubleASKAP-EMUDisplay the ASKAP-EMU ESP LMC Radio Continuum Survey data Cat. J/MNRAS/506/3540meta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDRaw identifier number (ID)meta.id;meta.mainintRAJ2000Right ascension (J2000) (RA)degpos.eq.ra;meta.mainindexedDEJ2000Declination (J2000) (Dec)degpos.eq.dec;meta.mainindexedzBESTBest-fitting photometric redshift (z_BEST_)src.redshift.photdoubleb_zBEST[] Lower bound zBEST - 1{sigma} standard deviation corresponding to 16th percentile of the posterior (z_BEST,low_)src.redshift.phot;stat.mindoubleB_zBEST[] Upper bound zBEST + 1{sigma} standard deviation corresponding to 84th percentile of the posterior (z_BEST,high_)src.redshift.phot;stat.maxdoublezML? The maximum likelihood photometric redshift (z_ML_)src.redshift.photdoublenullableJ/MNRAS/516/824/table3Spectroscopically determined and photometric redshifts for AGN behind the LMCrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameAGN name designation (Name)meta.id;meta.maincharf_NameFlag on AGN zBEST and Chi2S values (f_Name) (1)meta.codecharzspSpectroscopic redshift (z_spec_)src.redshift;spectfloatzphPhotometric redshift (z_phot_)src.redshift.photfloate_zph[] Lower uncertainty of zph (e_zph)stat.errorfloatE_zph[] Upper uncertainty of zph (E_zph)stat.error;stat.maxfloatSimbadNameSimbad column added by the CDSmeta.idcharnullable_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainr_zspLiterature reference for zsp values (Ref) (2)meta.ref;pos.frameintJ/MNRAS/516/824/table4Reddening values derived from ETGs within 3348 bins across the LMCrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDeltaRAdegRight ascension bin offset (J2000) ({Delta}RA) (1)pos.eq.ra;arith.diffdoubleDeltaDEdegDeclination bin offset (J2000) ({Delta}Dec) (1)pos.eq.dec;arith.diffdoubleE(B-V)Median interstellar dust extinction (E_B-V,med_)phot.color.excess;stat.medianfloate_E(B-V)Median uncertainty standard deviation of E (B-V) ({sigma}_EB-V,med_)stat.errorfloatETGsNumber of early-type galaxies ETGs in the bin across LMC footprint (NoETGs)meta.numberint