J/A+A/713/A201ivo://CDS.VizieR/J/A+A/713/A201CDSNetzel H.Pietrzynski G.Gorski M.Kervella P.Hajdu G.,Kudritzki R.Chini R.Kiviaho W.Zgirski B.Wielgorski P.,Graczyk D.Gieren W.2026-09-17T08:13:18Z2026-09-17T09:12:54ZCDS support team

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

cds-question@unistra.frmagellanic-cloudsinterstellar-reddeninggiant-starsastrometryextinctionRobust reddening maps of the Large and Small Magellanic Clouds (LMC and SMC) are crucial for a wide range of astrophysical studies, including the calibration of the cosmic distance ladder, investigations of stellar populations in low-metallicity environments, and the characterization of interstellar dust properties. We aim to construct reddening maps of the Magellanic Clouds using spectral energy distribution (SED) fitting and to investigate the impact of different stellar atmosphere models on the resulting maps. We combined optical (ugriz) photometry from the SMASH survey with near-infrared (YJKs) photometry from the VMC survey for red giant branch (RGB) stars. We matched the observed SEDs to synthetic photometry derived from three atmosphere model grids. Our maps cover 34.5deg^2^ of the LMC and 24.5deg^2^ of the SMC at 4-arcmin resolution. We find mean reddening values of E(B-V)=0.076 +/-0.022mag for the LMC and 0.058+/-0.024mag for the SMC. We find that employing different atmospheric models results in differences of up to 0.03 mag in the mean reddening. Canonical RV values for the Magellanic Clouds (3.41 for LMC and 2.74 for SMC; Gordon et al., 2003ApJ...594..279G) provide results consistent with previous studies. We confirm a higher and more structured reddening in the LMC compared to the SMC, with 30 Doradus standing out as the dominant high-reddening region. Our results show that the absolute reddening scale depends on the choice of stellar atmosphere models, while the relative spatial structure of the reddening maps remains stable.2026A&A...713A.201Nhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/713/A201CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/695/A114 : LMC and SMC Cepheid candidates periods (Rathour+, 2025)J/A+A/666/A80 : Star clusters and fields in the LMC (Narloch+, 2022)J/A+A/649/A7 : MC structure and properties (Gaia Collaboration+, 2021)J/A+A/628/A51 : Magellanic Clouds reddening map (Joshi+, 2019)J/MNRAS/419/1637 : Nearby red clump stars JHK observations (Laney+, 2012)J/MNRAS/472/808 : YJKs light curves of SMC Classical Cepheids (Ripepi+, 2017)J/ApJ/780/59 : The Araucaria project: eclipsing binaries in SMCJ/ApJ/904/13 : Radial velocity for 10 giant eclipsing binariesJ/ApJ/832/176 : Classical Cepheids in MCs. I. LMC disk (Inno+, 2016)J/ApJ/982/33 : Scylla+METAL combined photometry master catalogJ/ApJ/876/85 : HST observations for LMC Cepheids (Riess+, 2019)J/AJ/149/117 : LMC infrared survey. I. Photometry of Cepheids (Macri+,2015)J/AJ/146/62 : HERschel HERITAGE in Magellanic Clouds (Meixner+, 2013)J/AJ/154/199 : SMASH: Survey of the MAgellanic Stellar HistoryII/351 : VISTA Magellanic Survey (VMC) catalog (Cioni+, 2011)I/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/713/A201https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/713/A201http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/713/A201https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/713/A201https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/713/A201http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/713/A201GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/713/A201/smc (Reddening map of the SMC)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/713/A201/smc?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/713/A201/smc?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/713/A201/smc?GETtext/xml+votable180.050000true23.92725194-72.122583060.0055555555555555564/2082 5/8321 8323-8324 8326 8332 6/32943 32954-32955 33283 33289-33291 33302 33308 33310 33332 33336-33338https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/713/A201?format=asciidefaultJ/A+A/713/A201/smcReddening map of the SMCrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension of bin center (J2000) (RA)degpos.eq.ra;meta.mainDEJ2000Declination of bin center (J2000) (Dec)degpos.eq.dec;meta.mainE(B-V)Median E(B-V) reddening in the bin (Median)magphot.color.excessfloatNstarNumber of RGB stars in the bin (N)meta.numberintb_E(B-V)The 16th percentile of stellar E(B-V) values (P16)magstat.valuefloatB_E(B-V)The 84th percentile of stellar E(B-V) values (P84)magstat.valuefloat