J/ApJ/871/215ivo://CDS.VizieR/J/ApJ/871/215doi:10.26093/cds/vizier.18710215CDSBetti S.K.Hill A.S.Mao S.A.Gaensler B.M.Lockman F.J.,McClure-Griffiths N.M.Benjamin R.A.2020-10-12T12:25:08Z2020-08-10T10:08:20ZCDS support team

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

cds-question@unistra.frradio-continuum-emissionpolarimetrymagnetic-fieldsradio-sourcesThe Smith Cloud is a high-velocity cloud with an orbit suggesting it has made at least one passage through the Milky Way disk. A magnetic field found around this cloud has been thought to provide extra stability as it passes through the Galactic halo. We use the Karl G. Jansky Very Large Array to measure Faraday rotation measures (RMs) toward 1105 extragalactic background point sources behind and next to the Smith Cloud to constrain the detailed geometry and strength of its magnetic field. The RM pattern across the cloud gives the detailed morphology of the magnetic field structure, which indicates a field draped over the ionized gas and compressed at the head of the cloud. We constrain the peak line-of-sight magnetic field strength to >~+5{mu}G and create a model of the magnetic field to demonstrate that a draped configuration can qualitatively explain the morphology of the observed RMs.2019ApJ...871..215Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/871/215CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/249 : WHAM Northern Sky Survey, V-1.1 (Haffner+, 2003)VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)J/ApJ/702/1230 : Rotation measure image of the sky (Taylor+, 2009)J/ApJ/714/1170 : Faraday rotation at high Galactic latitude (Mao+, 2010)J/MNRAS/467/1776 : Faraday rotation in Magellanic Bridge (Kaczmarek+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/871/215https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/871/215http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/871/215https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/871/215https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/871/215http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/871/215GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/871/215/table1 (Rotation measures)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/871/215/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/871/215/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/871/215/table1?GETtext/xml+votable180.050000true286.7685-26.17850.0055555555555555564/768 5/3076 3080 3081 3082 3084 3088 4774 4775 4776 4779 4782 4784 4794 4795 7453 7455 7477 7478 7479 7485 7493 7495 7499 7500 7501 7503 7507 7509 7514 7517 7518 7520 7522 7524 7528 7532 7533 7541 7542 12286 6/12309 12310 12311 12312 12314 12315 12316 12318 12319 12332 12333 12335 12341 12343 12345 12346 12347 12348 12351 12356 12357 12359 12362 12363 12364 12365 12368 12370 12375 12386 12398 12410 12416 12417 12418 12420 12421 12422 12426 12427 12429 12437 12449 12450 12459 12463 12464 12465 12471 12473 12488 12492 12498 12516 12524 12526 12535 12536 12537 12538 12540 12548 12559 12562 12568 12576 12577 12582 12588 12602 12610 12616 12618 12620 12623 12634 12667 12675 12677 12678 12683 12687 12692 12693 12696 12704 12705 12707 12710 12711 12712 12720 12723 12724 12733 12769 12800 12819 12822 12823 12825 12836 12852 12869 12871 12872 12873 12883 12884 12913 13064 18976 19002 19050 19053 19074 19078 19079 19080 19082 19085 19086 19089 19090 19091 19093 19094 19095 19109 19110 19112 19115 19120 19122 19123 19124 19125 19126 19132 19135 19140 19142 19143 19144 19146 19147 19149 19150 19151 19156 19158 19159 19160 19169 19170 19171 19172 19174 19175 19184 19186 19188 19189 19192 19194 19330 19337 19352 19364 19368 19373 19374 19381 19406 19418 19426 19428 19435 19442 28949 28955 28959 28995 28996 28999 29002 29011 29014 29040 29042 29045 29046 29049 29703 29706 29709 29715 29720 29724 29727 29730 29732 29733 29736 29737 29739 29741 29753 29763 29768 29769 29770 29772 29784 29789 29796 29801 29803 29806 29810 29817 29829 29840 29889 29892 29894 29903 29906 29907 29936 29937 29939 29963 29965 29966 29967 29970 29971 29976 29978 29979 29984 29985 29989 29990 29991 29994 30008 30010 30011 30016 30017 30019 30020 30021 30023 30024 30026 30027 30032 30034 30040 30041 30043 30045 30046 30047 30048 30050 30051 30052 30053 30054 30060 30061 30063 30066 30067 30076 30078 30079 30084 30085 30087 30092 30093 30094 30100 30102 30103 30105 30106 30108 30109 30111 30116 30119 30120 30121 30124 30125 30127 30136 30137 30138 30140 30144 30145 30146 30148 30149 30150 30153 30156 30157 30158 30160 30162 30173 30174 30175 30177 30178 30180 30181 30183 30192 30193 30195 30196 30197 30199 30200 30201 30546 30548 30549 48055 48060 48074 48079 48092 48093 48104 48105 48107 48108 48110 48119 48121 48575 48630 48633 48730 48739 48741 48742 48745 48746 48753 48756 48763 48764 48768 48769 48779 48780 48798 48799 48800 48806 48808 48810 48819 48820 48822 48826 48827 48828 48842 48843 48844 48848 48857 48868 48870 48874 48876 48881 48884 48895 48926 48927 48932 48942 48943 48966 48968 48972 48974 48975 48983 48992 48996 49006 49007 49014 49015 49019 49024 49025 49039 49043 49049 49057 49063 49064 49090 49098 49106 49124 49130 49131 49132 49134 49135 49138 49139 49141 49142 49143 49148 49149 49151https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/871/215?format=asciiRadiodefaultJ/ApJ/871/215/table1Rotation measuresrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGLON[10.76/80] Galactic longitude (1)degpos.galactic.lonGLAT[-44.5/-10.1] Galactic latitudedegpos.galactic.latdoubleRAJ2000[282.6/338.4] Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[-27.4/23.7] Declination (J2000)degpos.eq.dec;meta.mainSN[3.05/25.8] Signal to Noise of the Faraday depth spectrumstat.snrfloatRM[-292.0/407.0] Raw rotation measurerad.m**-2phys.polarization.rotMeasurefloate_RM[1/10] Uncertainty in RMrad.m**-2stat.errorintRMfit[-277.23/441.41] Milky Way foreground subtracted rotation measurerad.m**-2phys.polarization.rotMeasurefloate_RMfit[7.1/12.1] Uncertainty in RMfitrad.m**-2stat.errorfloatT09[0/1] Match to Taylor+ 2009, J/ApJ/702/1230 NVSS RM catalog (1=yes)meta.codeint