J/ApJ/665/369ivo://CDS.VizieR/J/ApJ/665/369doi:10.26093/cds/vizier.16650369CDSAndersson B.-G.Potter S.B.2017-10-03T05:13:09Z2009-11-16T13:36:41ZCDS support team

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

cds-question@unistra.frinterstellar-mediummolecular-cloudsphotometrypolarimetryWe present new multicolor photopolarimetry of stars behind the Southern Coalsack. Analyzed together with multiband polarization data from the literature, probing the Chamaeleon I, Musca, rho Opiuchus, R CrA, and Taurus clouds, we show that the wavelength of maximum polarization ({lambda}_max_) is linearly correlated with the radiation environment of the grains. Using far-infrared emission data, we show that the large scatter seen in previous studies of {lambda}_max_ as a function of Av is primarily due to line-of-sight effects causing some Av measurements to not be a good tracer of the extinction (radiation field strength) seen by the grains being probed.2007ApJ...665..369Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/665/369CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/665/369https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/665/369http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/665/369https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/665/369https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/665/369http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/665/369GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/665/369/table2 (Coalsack Polarimetry Results)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/665/369/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/665/369/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/665/369/table2?GETtext/xml+votable180.050000true186.9407714-63.88467110.005555555555555556Cone search capability for table J/ApJ/665/369/table4 (Stars with data from archives and the literature)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/665/369/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/665/369/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/665/369/table4?GETtext/xml+votable180.050000true162.255-76.90805560.0055555555555555565/9239 10742 6/1046 1047 1048 1051 1053 1055 1061 1074 1075 1078 1081 1084 1097 1098 1102 1122 1129 1165 1262 1263 36951 36955 37123 37128 37129 41510 41514 41515 41516 41518 41519 41601 41602 41603 41604 41615 41631 41644 41654 41660 41662 41664 42959 42966 42967 42972 42981 42982 42983 42989 42992 42993 42994 43012 43021 43023 43024 43025 43028 43045 47739 47741 47742 47825 47828https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/665/369?format=asciiOpticaldefaultJ/ApJ/665/369/table2Coalsack Polarimetry ResultsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar namemeta.id;meta.maincharp(U)Polarisation in U band%phys.polarization.linearfloate_p(U)Mean error on p(U)%stat.errorfloatpa(U)Position angle of U-band polarisationdegpos.posAngfloate_pa(U)Mean error on pa(U)degstat.errorfloatp(B)Polarisation in B band%phys.polarization.linearfloate_p(B)Mean error on p(B)%stat.errorfloatpa(B)Position angle of B-band polarisationdegpos.posAngfloate_pa(B)Mean error on pa(B)degstat.errorfloatp(V)Polarisation in V band%phys.polarization.linearfloate_p(V)Mean error on p(V)%stat.errorfloatpa(V)Position angle of V-band polarisationdegpos.posAngfloate_pa(V)Mean error on pa(V)degstat.errorfloatp(R)Polarisation in R band%phys.polarization.linearfloate_p(R)Mean error on p(R)%stat.errorfloatpa(R)Position angle of R-band polarisationdegpos.posAngfloate_pa(R)Mean error on pa(R)degstat.errorfloatp(I)Polarisation in U band%phys.polarization.linearfloate_p(I)Mean error on p(I)%stat.errorfloatpa(I)Position angle of I-band polarisationdegpos.posAngfloate_pa(I)Mean error on pa(I)degstat.errorfloatSimbadSimbad column added by the CDSchar_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.mainJ/ApJ/665/369/table4Stars with data from archives and the literatureCloudCloud name (1)meta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPSimbad column added by the CDSmeta.ref.urlcharStarStar namemeta.idcharprimarySpTypeMK Spectral Classification (2)src.spTypecharr_SpTypeReference for SpType (4)meta.ref;pos.framecharVmag? The V band magnitudemagphot.mag;em.opt.Vfloatnullablee_Vmag? Uncertainty in Vmagmagstat.error;phot.mag;em.opt.VfloatnullableB-VObserved (B-V) color indexmagphot.color;em.opt.B;em.opt.Vfloate_B-VUncertainty in B-Vmagstat.error;phot.color;em.opt.Bfloat(B-V)0? Intrinsic (B-V) color indexmagphot.color;em.opt.B;em.opt.Vfloatnullablee_(B-V)0? Uncertainty in (B-V)0magstat.errorfloatnullableV-K? Observed (V-K) color indexmagphot.color;em.opt.V;em.IR.Kfloatnullablee_V-K? Uncertainty in V-Kmagstat.error;phot.color;em.opt.Vfloatnullable(V-K)0? Intrinsic (V-K) color indexmagphot.color;em.opt.V;em.IR.Kfloatnullablee_(V-K)0? Uncertainty in (V-K)0magstat.errorfloatnullableRv? Ratio of total-to-selective extinctionphys.absorptionfloatnullablee_Rv? Uncertainty in Rvstat.errorfloatnullablef_Rv[d] Rv ignored in the analysis (3)meta.codecharAv? The V band extinctionmagphys.absorption;em.opt.Vfloatnullablee_Av? Uncertainty in Avmagstat.errorfloatnullableS?Screened out? (5)meta.notecharSimbadNameSimbad column added by the CDSmeta.idchar_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.mainJ/ApJ/665/369/table5Polarization curve fits for stars from literaturerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCloudCloud namemeta.id;meta.maincharStarStar name (1)meta.idcharPmaxMaximum polarization%phys.polarization;stat.maxfloate_PmaxUncertainty in Pmax%stat.errorfloatWmaxWavelength of maximum polarizationumphys.polarization;stat.maxfloate_WmaxUncertainty in Wmaxumstat.errorfloatK? Interstellar polarization K parameter (2)phot.mag;em.IR.Kfloatnullablee_K? Uncertainty in Kstat.errorfloatnullable