J/A+A/573/A34ivo://CDS.VizieR/J/A+A/573/A34doi:10.26093/cds/vizier.35730034CDSSoam A.Maheswar G.Lee C.W.Dib S.Bhatt H.C.Tamura M.2015-08-03T15:33:19Z2015-03-17T14:29:21ZCDS support team

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

cds-question@unistra.frmolecular-cloudsmagnetic-fieldspolarimetryWe carried out optical polarimetry of five dense cores, (IRAM 04191, L1521F, L328, L673-7, and L1014) which are found to harbour very low luminosity objects (VeLLOs; Lint<~0.1L_{sun}_). This study was conducted mainly to understand the role played by the magnetic field in the formation of very low and substellar mass range objects. Light from the stars, while passing through the dust grains that are aligned with their short axis parallel to an external magnetic field, becomes linearly polarised. The polarisation position angles measured for the stars can provide the plane-of-the sky magnetic field orientation. Because the light in the optical wavelength range is most efficiently polarised by the dust grains typically found at the outer layers of the molecular clouds, optical polarimetry mostly traces the magnetic field orientation of the core envelope.2015A&A...573A..34Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/573/A34CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/573/A34https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/573/A34http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/573/A34https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/573/A34https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/573/A34http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/573/A34GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/573/A34/table1 (List of studied sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/573/A34/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/573/A34/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/573/A34/table1?GETtext/xml+votable180.050000true65.487515.4961110.005555555555555556Cone search capability for table J/A+A/573/A34/table4 (Optical polarisation results of the stars observed in the direction of five dense cores with Very Low Luminosity Objects)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/573/A34/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/573/A34/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/573/A34/table4?GETtext/xml+votable180.050000true65.3067711115.382838890.0055555555555555566/1075 1081 15426 23533 29112 30621 30623 30664 30666https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/573/A34?format=asciidefaultJ/A+A/573/A34/table1List of studied sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCloudCloud namemeta.id;meta.maincharprimaryPolNumber of stars with measured polarization (table4)meta.numberintnullableRAJ2000Cloud right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Cloud declination (J2000)pos.eq.dec;meta.mainDist[127/258] Heliocentric distance, from Belloche et al. (2002A&A...393..927B)pcpos.distanceinte_Dist[25/50] Mean error on Distpcstat.errorintVdisp[0.88/1.50] Velocity dispersion from Kim et al. 2014 (in preparation)km/sphys.veloc.dispersionfloate_Vdisp[0.01/0.04] Mean error on Vdispkm/sstat.errorfloatSNameName of cloud in Simbadmeta.idcharJ/A+A/573/A34/table4Optical polarisation results of the stars observed in the direction of five dense cores with Very Low Luminosity ObjectsRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCloudCloud name \linkRole{cloud properties }meta.id.parentcharSeq[1/77] Star sequential number within the clustermeta.recordintn_Seq[a-e] Star identification or peculiarities (1)meta.notecharFiltFilter used for observations: V, Rc or Rkcinstr.setup;instr.filtercharPol[0.3/7.9] Degree of polarisation%phys.polarizationfloate_Pol[0.1/2.3] rms uncertainty on Pol%stat.errorfloatPA[0/180] Polarisation position angledegpos.posAnginte_PA[1/14] rms uncertainty on PAdegstat.errorint