J/A+A/489/911ivo://CDS.VizieR/J/A+A/489/911doi:10.26093/cds/vizier.34890911CDSElias N.M.IIKoch R.H.Pfeiffer R.J.2017-10-16T14:58:24Z2008-12-20T22:19:27ZCDS support team

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

cds-question@unistra.frvariable-starspolarimetryThe purpose of this paper is to summarize and interpret unpublished optical polarimetry for numerous program stars that were observed over the past decades at the Flower and Cook Observatory (FCO), University of Pennsylvania. We also make the individual calibrated measures available for long-term comparisons with new data. We employ three techniques to search for intrinsic variability within each dataset. First, when the observations for a given star and filter are numerous enough and when a period has been determined previously via photometry or spectroscopy, the polarimetric measures are plotted versus phase. If a statistically significant pattern appears, we attribute it to intrinsic variability. Second, we compare means of the FCO data to means from other workers. If they are statistically different, we conclude that the object exhibits long-term intrinsic variability. Third, we calculate the standard deviation for each program star and filter and compare it to the standard deviation estimated from comparable polarimetric standards. If the standard deviation of the program star is at least three times the value estimated from the polarimetric standards, the former is considered intrinsically variable. All of these statements are strengthened when variability appears in multiple filters.2008A&A...489..911Ehttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/489/911CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/489/911https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/489/911http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/489/911https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/489/911https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/489/911http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/489/911GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/489/911/stars (Stars positions (from Simbad))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/489/911/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/489/911/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/489/911/stars?GETtext/xml+votable180.050000true1.33375-5.70750.0055555555555555566/418 1293 1302 1453 1460 1504 1704 3384 5895 8687 13115 13687 13722 13729 13748 14201 14290 14368 14734 14797 14808 15195 15478 15686 15713 17368 17397 19507 19676 19930 21620 22837 22884 24420 25659 27402 31705 44993 48589https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/489/911?format=asciiOpticaldefaultJ/A+A/489/911/starsStars positions (from Simbad)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarSimbad star namemeta.id;meta.maincharprimaryRAJ2000Simbad Hour of Right Ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Simbad Degree of Declination (J2000.0)pos.eq.dec;meta.mainBmag? Simbad B band magnitudemagphot.mag;em.opt.BfloatnullableVmagSimbad V band magnitudemagphot.mag;em.opt.VfloatSpTypeSimbad MK spectral typesrc.spTypecharPlotPlot the polarization variationsmeta.ref.urlcharSimbadSimbad column added by the CDScharJ/A+A/489/911/table12*The weighted means of the normalized linear and circular polarisations, together with the reduced standard deviations and numbers of observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharStarOther name (HD name if exist)meta.idcharFilt[UBVRB1B2 -] Filter (G1)meta.id;instr.filtercharqWeighted mean q Stokes parameter%phys.polarization.stokes;stat.meanfloate_q? rms uncertainty on q%stat.errorfloatnullableuWeighted mean u Stokes parameter%phys.polarization.stokes;stat.meanfloate_u? rms uncertainty on u%stat.errorfloatnullableNlNumber of observations for linear polarisationmeta.numberintv? Weighted mean v Stokes parameter%phys.polarization.stokes;stat.meanfloatnullablee_v? rms uncertainty on v%stat.errorfloatnullableNcNumber of observations for circular polarisationmeta.numberintNoteNote on observationmeta.notecharJ/A+A/489/911/tablePolarization observations of close binary and {beta} Cep stars from the polarization program at the Flower and Cook Observatory, University of Pennsylvania.recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarName (HD name if exist)meta.id;meta.maincharn_Star[-6 ] Multiplicity index for the binary HD 036485-6meta.notecharHJDHeliocentric Julian datedtime.epochdoubleFilt[UBVR-] Filter (G1)meta.id;instr.filtercharqNormalized linear q Stokes parameter (NLSP)%pos.distance;phys.polarization.stokes;arith.ratiofloatuNormalized linear u Stokes parameter (NLSP)%pos.distance;phys.polarization.stokes;arith.ratiofloate_q? Normalized rms uncertainty on q and u (NLSP error)%stat.errorfloatnullablev? Normalized circular v Stokes parameter (NCSP)%phys.polarization.stokes;arith.ratiofloatnullablee_v? Normalized rms uncertainty on v (NCSP error) (2)%stat.errorfloatnullablePlotPlot the polarization variationsmeta.ref.urlchar