J/ApJS/119/83ivo://CDS.VizieR/J/ApJS/119/83doi:10.26093/cds/vizier.21190083CDSParsons S.B.Ake T.B.2018-01-10T11:47:12Z2001-10-30T17:13:32ZCDS support team

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

cds-question@unistra.frmultiple-starssupergiant-starsspectroscopyultraviolet-astronomymorgan-keenan-classificationWe have obtained or retrieved IUE spectra for over 100 middle- and late-type giant and supergiant stars whose spectra indicate the presence of a hot component earlier than type F2. The hot companions are classified accurately by temperature class from their far-UV spectra. The interstellar extinction of each system and the relative luminosities of the components are derived from analysis of the UV and optical fluxes, using a grid of UV intrinsic colors for hot dwarfs. We find that there is fair agreement in general between current UV spectral classification and ground-based hot component types, in spite of the difficulties of assigning the latter. There are a few cases in which the cool component optical classifications disagree considerably with the temperature classes inferred from our analysis of UV and optical photometry. The extinction parameter agrees moderately well with other determinations of B-V color excess. Many systems are worthy of further study especially to establish their spectroscopic orbits. Further work is planned to estimate luminosities of the cool components from the data herein; in many cases, these luminosities' accuracies should be comparable to or exceed those of the Hipparcos parallaxes.1998ApJS..119...83Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/119/83CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/119/83https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/119/83http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/119/83https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/119/83https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/119/83http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/119/83GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/119/83/table4 (Optical analysis of cool + hot binaries)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/119/83/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/119/83/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/119/83/table4?GETtext/xml+votable180.050000true12.81826261.8054940.0055555555555555566/31 349 469 1335 1427 1448 1618 1749 3037 3134 3176 3284 3372 3462 3962 4143 4181 4798 6126 7122 8735 9469 9751 10106 12211 12311 12927 12964 12988 13007 13224 13238 13308 13414 13777 13961 14115 14244 14280 14320 14359 14384 14396 14410 14440 14613 14616 14642 14646 14696 14797 14808 14866 15217 15364 15367 15437 15444 15491 15569 16249 16952 20797 20828 20956 21530 21564 21679 22039 22978 23448 23562 23756 24235 24314 24496 28252 28480 28898 28959 29069 29878 30234 30363 30585 30586 31382 31821 31904 31967 32208 32661 32843 33796 33987 34414 36206 37207 37627 37760 37808 37895 37912 38000 39068 39255 39344 39355 39657 39714 39830 39904 39936 39972 40121 40195 40552 40885 41757 41826 41900 42663 42707 43008 43338 44720 47811 48104 48856 49101https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/119/83?format=asciiUVOpticaldefaultJ/ApJS/119/83/table4Optical analysis of cool + hot binariesFitCool + Hot Flux Fit (3)src.spTypecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHDHD Numbermeta.id;meta.mainintprimaryn_HD[+] Note on HD (G1)meta.notecharSimbadSimbad column added by the CDSmeta.refcharNoteText of Notemeta.refcharSpTypeGround spectral typesrc.spTypecharUVTypeUV Spectral Typesrc.spTypecharPrec? Standard deviation of the best fitmagstat.stdevfloatnullablen_Prec[a] a: see note in notes.dat filemeta.notecharDeltaVMagnitude difference between the componentsmagphot.mag;arith.difffloatu_DeltaV[: ] Uncertainty flag on DeltaV (::) assumed parametermeta.code.errorcharE(B-V)Colour excessmagphot.color.excessfloatn_E(B-V)[A:] : Uncertainty flag, A: anomalous reddeningmeta.notecharCrPointWavelength of the "crossover point" at which dominance of the total flux makes its transition between the hot and cool componentsnmem.wlfloatu_CrPointUncertainty flag on CrPointmeta.code.errorcharNotes[abc] Additional Notes (4)meta.notechar_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/ApJS/119/83/table1Summary of IUE observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHDHD Numbermeta.id;meta.mainintFarUVFar-UV Image (1)obs.imagecharMidUVMid -UV Image (1)obs.imagecharIUEIUE GO Programmeta.code;obscharDateObservation datetime.epochnullableRemRemarkmeta.notecharJ/ApJS/119/83/table2Ground-based data for program starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHDHD Numbermeta.id;meta.mainintn_HD[+] Note on HD number (G1)meta.notecharNameOther namemeta.idcharVmagV magnitudemagphot.mag;em.opt.Vfloatn_Vmag[v?: ] Note on Vmag (2)meta.notecharB-VB-V colour indexmagphot.color;em.opt.B;em.opt.Vfloatn_B-V[s: v] Note on B-V (2)meta.notecharPhotOther photometry (3)meta.id;photcharSpTypeSpectral typesrc.spTypecharr_SpTypeReferences in refs.datmeta.refcharPer? Binary perioddtime.perioddoublenullableu_Per[: )] Uncertainty flag on Permeta.code.errorcharn_PerComment on binary period (4)meta.notecharSep? Cool+hot binary separationarcsecpos.angDistancefloatnullableu_Seprms uncertainty on Sepmeta.code.errorcharNote[a] Individual note in notes.dat filemeta.notecharJ/ApJS/119/83/refsReferences (table 5 of paper)AutAuthor namesmeta.bib.authorcharComCommentsmeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference codemeta.refcharBibCodeBibCodemeta.bib.bibcodecharJ/ApJS/119/83/notesIndividual notesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHDHD numbermeta.id;meta.mainintm_HDFor double stars, end of the HD number of the secondarymeta.code.multipcharTextText of the note (1)meta.note