J/ApJ/688/1029ivo://CDS.VizieR/J/ApJ/688/1029doi:10.26093/cds/vizier.16881029CDSMao S.A.Gaensler B.M.Stanimirovic S.Haverkorn M.,McClure-Griffiths N.M.Staveley-Smith L.Dickey J.M.2025-04-11T20:11:03Z2011-01-31T15:48:51ZCDS support team

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

cds-question@unistra.frmagellanic-cloudsmagnetic-fieldspolarimetryradio-continuum-emissionWe present a study of the magnetic field of the Small Magellanic Cloud (SMC), carried out using radio Faraday rotation and optical starlight polarization data. Consistent negative rotation measures (RMs) across the SMC indicate that the line-of-sight magnetic field is directed uniformly away from us with a strength 0.19+/-0.06{mu}G. Applying the Chandrasekhar-Fermi method to starlight polarization data yields an ordered magnetic field in the plane of the sky of strength 1.6+/-0.4uG oriented at a position angle 4+/-12{deg}, measured counterclockwise from the great circle on the sky joining the SMC to the Large Magellanic Cloud (LMC). We construct a three-dimensional magnetic field model of the SMC, under the assumption that the RMs and starlight polarization probe the same underlying large-scale field. further test the pan-Magellanic field hypothesis.2008ApJ...688.1029Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/688/1029CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/6 : Polarization of Extragalactic Radio Sources (Eichendorf+ 1980)J/MNRAS/335/1085 : ATCA SMC Radio Continuum Source. I. (Filipovic+, 2002)J/MNRAS/355/44 : ATCA SMC Radio Continuum Source. II. (Payne+, 2004)J/ApJ/663/258 : Rotation measures of extragalactic sources in SGPS (Brown+,https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/688/1029https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/688/1029http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/688/1029https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/688/1029https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/688/1029http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/688/1029GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/688/1029/table3 (Rotation measures of extragalactic sources in the observed field)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/688/1029/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/688/1029/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/688/1029/table3?GETtext/xml+votable180.050000true25.4827083-69.69442780.0055555555555555566/32954 33283-33286 33291 33295 33297 33300 33302 33304 33306 33310-33311 33313-33317 33324 33327 33329 33331-33334 33336 33411-33412 33414 33417https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/688/1029?format=asciiRadiodefaultJ/ApJ/688/1029/table3Rotation measures of extragalactic sources in the observed fieldDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainRMRotation measurerad.m**-2phys.polarization.rotMeasureinte_RMRM uncertaintyrad.m**-2stat.errorintRM2? Rotation measure after foreground RM substraction (for sources behind the SMC (table 4 of the paper))rad.m**-2phys.polarization.rotMeasureintnullablee_RM2? RM2 uncertaintyrad.m**-2stat.errorintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDSource sequence number identification (<[MGS2008] NNN> in Simbad) (1)meta.id;meta.mainintf_ID[*] * means source behind the SMCmeta.codecharRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainSimbadSimbad column added by the CDSmeta.ref.urlcharNEDNED column added by the CDSmeta.ref.urlchar