J/ApJS/141/469ivo://CDS.VizieR/J/ApJS/141/469doi:10.26093/cds/vizier.21410469CDSPereyra A.Magalhaes A.M.2002-09-30T21:24:04Z2002-09-30T21:23:42ZCDS support team

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

cds-question@unistra.frpolarimetrymagnetic-fieldsinterstellar-mediumWe have obtained linear polarization measurements of stars along the western side of the IRAS Vela Shell toward HD 62542. From 16 CCD fields distributed along the ionization front (I-front) we have built a catalog of 856 objects with polarization signal-to-noise ratio larger than 10. We detect very significant levels of polarization and hence an appreciable magnetic field throughout the region. Composite polarization maps around the I-front are shown. In some regions the polarization vectors are parallel to the I-front, but a perpendicular trend is also evident along parts of the front. In addition, the polarization pattern seems to be affected by gas streaming inside the cloud. The observations were made using a CCD imaging polarimeter attached to the 1.5m Telescope of Cerro Tololo Inter-American Observatory (CTIO), Chile. The data were collected in 1991 December and 1992 December. Table 1: CCD Field Positions -------------------------------------------------- Field RA (J2000) DE Obs. Date -------------------------------------------------- 01 7 42 37.08 -42 13 44.66 Dec. 1991 02 7 42 01.22 -42 07 02.30 Dec. 1991 03 7 41 25.31 -42 02 02.93 Dec. 1991 04 7 43 12.93 -42 20 25.03 Dec. 1991 05 7 38 59.84 -41 36 55.29 Dec. 1992 06 7 39 32.15 -41 28 59.42 Dec. 1992 07 7 40 03.96 -41 36 59.53 Dec. 1992 08 7 40 03.70 -41 44 59.52 Dec. 1992 09 7 40 35.51 -41 53 01.63 Dec. 1992 10 7 42 11.43 -42 01 06.96 Dec. 1992 11 7 42 10.92 -42 17 07.95 Dec. 1992 12 7 42 42.72 -42 25 11.05 Dec. 1992 13 7 42 10.66 -42 25 07.94 Dec. 1992 14 7 41 06.41 -42 29 03.71 Dec. 1992 15 7 40 09.39 -42 56 59.98 Dec. 1992 16 7 39 36.94 -43 08 58.84 Dec. 1992 --------------------------------------------------2002ApJS..141..469Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/141/469CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/141/469https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/141/469http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/141/469https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/141/469https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/141/469http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/141/469GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/141/469/table2 (Field data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/141/469/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/141/469/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/141/469/table2?GETtext/xml+votable180.050000true115.5675417-42.19536110.0055555555555555566/39329 39331 39334 39337https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/141/469?format=asciidefaultJ/ApJS/141/469/table2Field datarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[PM2002]Name (FF NNN) (1)meta.id;meta.mainchar[PM2002]2Second designation in an other fieldmeta.idcharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainPolVPercent linear polarization in the V band%phys.polarizationfloate_PolVMeasured error in PolV (2)%stat.errorfloatPAPolarization angle (3)degpos.posAng;phys.polarizationfloatVmagThe V band magnitudemagphot.mag;em.opt.Vfloat