J/A+AS/123/135ivo://CDS.VizieR/J/A+AS/123/135CDSGinestet N.Carquillat J.M.Jaschek C.Jaschek M.2022-09-30T13:18:34Z1998-09-05T09:30:00ZCDS support team

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

cds-question@unistra.frinfrared-astronomyspectroscopymorgan-keenan-classificationA sample of 180 supposedly composite-spectrum stars has been studied on the basis of spectra obtained in the near infrared (8370-8780{AA}) at a dispersion of 33{AA}/mm. The objective was to study the cooler components of the systems. Of our sample, 120 are true composite spectra, 35 are hot spectra of types B, F and 25 are Am stars. We find a strong concentration of the cooler components of the composite spectra around G8III. In view of the difficulty of classifying composite spectra, because of the superposition of an early type dwarf and a late type giant or supergiant spectrum, we have made several tests to control the classification based upon the infrared region. Since all tests gave positive results, we conclude that our classifications can be considered as being both reliable and homogeneous.1997A&AS..123..135Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/123/135CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+AS/123/135https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+AS/123/135http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+AS/123/135https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+AS/123/135https://vizier.iucaa.in/viz-bin/votable?-source=J/A+AS/123/135http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+AS/123/135GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+AS/123/135/table1 (Classifications of the cool components, SP(IR), of stars with composite spectra)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+AS/123/135/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+AS/123/135/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+AS/123/135/table1?GETtext/xml+votable180.050000true12.1712552.1011110.005555555555555556Cone search capability for table J/A+AS/123/135/table2 (Stars of the which exhibit a hot spectrum)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+AS/123/135/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+AS/123/135/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+AS/123/135/table2?GETtext/xml+votable180.050000true10.400157524.62901360.0055555555555555566/31 469 963 1171 1400 1427 1444 1448 1505 1618 1717 1734 1749 2399 2685 2951 3110-3111 3134 3176 3207 3462 3616 3696 3723 3962 4143 4279 4465 4798 6722 7122 7722 8735 9751 10106 10904 12311 12517 12529 12815 13017 13224 13238 13777 14016 14066 14086 14093 14115 14183 14440 14797 15326 15367 15437 15491 15749 15765 15810 16212 16249 16952 16983 20956 21017 21153 21244 21530 21598 21679 21719 21967 22098 22112 22228 22260 22267 22333 22434 22979 23562 23756 23848 23850 23912 23973 23999 24004 24144 24235 24314 24359 24411 24454 24496 24734 27268 28252 28480 29116 30294 30363 30585-30586 31382 31967 38775 40147 40160 40195 40552 40565 40855 40885 40892 44720 48505 48856https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+AS/123/135?format=asciiOpticalInfrareddefaultJ/A+AS/123/135/table1Classifications of the cool components, SP(IR), of stars with composite spectraSp2Spectral typesrc.spTypecharSimbadNameSimbad column added by the CDSmeta.idcharnullableSp1Spectral typesrc.spTypecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHD/BDHD of BD number of the starmeta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainVmagV magnitudemagphot.mag;em.opt.Vfloatu_VmagUncertainty flag on Vmagmeta.code.errorcharB-V? B-V color indexmagphot.color;em.opt.B;em.opt.VfloatnullableSpIRThis work spectral type (1)src.spTypecharn_SpIR[*] Note on the object (2)meta.notecharr_Sp1References for spectral type (see refs.dat file)meta.ref;pos.framecharn_Sp2[*] Note on the object (2)meta.notecharr_Sp2References for spectral type (see refs.dat file)meta.ref;pos.framecharSp3Spectral typesrc.spTypecharr_Sp3References for spectral type (see refs.dat file)meta.ref;pos.framecharSp4Spectral typesrc.spTypecharr_Sp4References for spectral type (see refs.dat file)meta.ref;pos.framecharSp5Spectral typesrc.spTypecharr_Sp5References for spectral type (see refs.dat file)meta.ref;pos.framecharSp6Spectral typesrc.spTypecharr_Sp6References for spectral type (see refs.dat file)meta.ref;pos.framecharJ/A+AS/123/135/table2Stars of the which exhibit a hot spectrumu_VmagUncertainty flag on Vmagmeta.code.errorcharSpSpectral typesrc.spTypecharn_Sp[*] * when individual note (1)meta.notecharSpIRThis work spectral typesrc.spTypecharn_SpIR[*] * when individual note (1)meta.notecharSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintVmagV magnitudemagphot.mag;em.opt.VfloatB-V? B-V color indexmagphot.color;em.opt.B;em.opt.Vfloatnullable_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.mainHD/BDHD or BD namemeta.id;meta.maincharJ/A+AS/123/135/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefCode of the referencemeta.ref;pos.framecharBibCodeBibcode of the referencemeta.bib.bibcodecharCommCommentmeta.notechar