J/A+AS/111/399ivo://CDS.VizieR/J/A+AS/111/399CDSJAIN S.K.BHATT H.C.1997-12-09T17:46:40Z1997-12-09T18:46:36ZCDS support team

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

cds-question@unistra.frearly-type-starspolarimetryWe report our measurements of linear polarization of a number of Herbig Ae/Be stars made at several epochs during the period 1989-1993. These results together with the observations compiled from the published sources have been analysed to study the variability of polarization in Herbig Ae/Be stars. It is found that polarimetric variability is a common feature of this class of objects. Most of the objects are variable on time scales >=1yr. Some objects have shown large variations on time scales as short as ~1 month indicating structural changes in the distribution of circumstellar matter close to the star within a few tens of stellar radii. Variations in the polarization position angle are not always correlated with variations in the degree of polarization.1995A&AS..111..399Jhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/111/399CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+AS/111/399https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+AS/111/399http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+AS/111/399https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+AS/111/399https://vizier.iucaa.in/viz-bin/votable?-source=J/A+AS/111/399http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+AS/111/399GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+AS/111/399/table1Polarimetric data for Herbig Ae/Be starsSNSequential numbermeta.idintNameObject namemeta.id;meta.maincharDateobservation datetime.epochcharpU[]? Degree of polarization in U filter%phys.polarizationfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordinte_pU[]? rms uncertainty on pU%stat.errorfloatpaU[]? Position angle in U filterdegpos.posAng;phys.polarizationinte_paU[]? rms uncertainty on paUdegstat.errorintpB[]? Degree of polarization in B filter%phys.polarizationfloate_pB[]? rms uncertainty on pB%stat.errorfloatpaB[]? Position angle in B filterdegpos.posAng;phys.polarizationinte_paB[]? rms uncertainty on paBdegstat.errorintpV[]? Degree of polarization in V filter%phys.polarizationfloate_pV[]? rms uncertainty on pV%stat.errorfloatpaV[]? Position angle in V filterdegpos.posAng;phys.polarizationinte_paV[]? rms uncertainty on paVdegstat.errorintpR[]? Degree of polarization in R filter%phys.polarizationfloate_pR[]? rms uncertainty on pR%stat.errorfloatpaR[]? Position angle in R filterdegpos.posAng;phys.polarizationinte_paR[]? rms uncertainty on paRdegstat.errorintpI[]? Degree of polarization in I filter%phys.polarizationfloate_pI[]? rms uncertainty on pI%stat.errorfloatpaI[]? Position angle in I filterdegpos.posAng;phys.polarizationinte_paI[]? rms uncertainty on paIdegstat.errorintrefReferences (1)meta.refint