Southern stars of high radial velocity

Southern stars of high radial velocityJ/AJ/89/1897ivo://CDS.VizieR/J/AJ/89/1897doi:10.26093/cds/vizier.50891897CDSStock J.MacConnell D.J.Osborn W.Alvarez H.2012-09-24T07:28:43Z2002-08-04T15:20:17ZCDS support team

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

cds-question@unistra.frhigh-velocity-starsradial-velocitySlit spectra have been obtained for 82 stars for which the objective-prism radial-velocity catalogue of Stock lists velocities over 130km/s in magnitude. The slit spectra reveal that many of these objects are F-K stars of low metal abundance, including some stars apparently as metal weak as any presently known. Radial velocities were derived from the slit spectra to examine the reliability of the large objective-prism velocities. The slit results confirm that the majority of the stars are indeed of high velocity, but show that the objective-prism technique tends to produce velocities systematically too large in magnitude by about 40km/s. It was also found that a large objective-prism velocity that is of low weight or from spectra near a plate edge is likely spurious. A search of the 10000 entries in Stock's catalogue yields 205 objects with radial-velocity magnitudes over 130km/s. Sixty-three of these velocities are not suspect because of low weight or edge proximity. An additional 14 stars of lower quality prism velocities were confirmed to have high velocities from the slit spectra. The high-velocity stars appear to form two distinct groups: metal-weak F-K stars and spectroscopically normal main-sequence A stars. Slit spectra were obtained on six nights in April 1978 utilizing the Boller and Chivens spectrograph and the Carnegie image tube at the Cassegrain focus of the 1-m Yale telescope at CTIO.1984AJ.....89.1897Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/89/1897CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/55 : A catalogue of high-velocity stars (Roman, 1955)J/PASP/110/1434 : High-velocity stars radial velocities (Stock+, 1998)J/AJ/103/514 : High-velocity stars toward South Galactic Cap (Reid+ 1992)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/89/1897https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/89/1897http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/89/1897https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/89/1897https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/89/1897http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/89/1897GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/89/1897/table1 (Data for stars observed)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/89/1897/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/89/1897/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/89/1897/table1?GETtext/xml+votable180.050000true187.5592872-34.84157350.005555555555555556Cone search capability for table J/AJ/89/1897/table2 (Probable high-velocity stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/89/1897/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/89/1897/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/89/1897/table2?GETtext/xml+votable180.050000true178.72434-26.286660.005555555555555556Cone search capability for table J/AJ/89/1897/table3 (Other stars of large velocity in the Stock Velocity Survey (SVS, 1984RMxAA...9...77S))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/89/1897/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/89/1897/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/89/1897/table3?GETtext/xml+votable180.050000true188.45437-33.81510.0055555555555555565/6193 10964 11023 11040 6/24639 24645 24656 24657 24660 24681 24683 24687 24689 24693 24702 24726 24769 24779 24782 24785 24833 24835 24841 24867 43482 43483 43484 43485 43487 43495 43499 43500 43501 43503 43504 43509 43510 43511 43513 43517 43735 43737 43739 43740 43741 43743 43751 43755 43756 43757 43759 43765 43767 43768 43773 43774 43775 43805 43806 43819 43821 43823 43824 43826 43829 43830 43831 43834 43835 43836 43839 43841 43843 43845 43846 43848 43850 43851 43853 43854 43855 43860 43864 43872 43875 43877 43906 43907 43908 43909 43911 43912 43914 43916 43917 43918 43920 43922 43928 43929 43940 43945 44055 44059 44060 44075 44077 44078 44079 44080 44082 44083 44085 44086 44087 44088 44090 44091 44104 44106 44107 44108 44110 44111 44120 44128 44130 44131 44136 44164 44165 44169 44171 44177 44180 44181 44194 44195 44196 44198 44200https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/89/1897?format=asciiOpticaldefaultJ/AJ/89/1897/table1Data for stars observedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRA1950Right ascension (1950)pos.eq.ra;meta.mainDE1950Declination (1950)pos.eq.dec;meta.mainSpTypeStock's spectral typesrc.spTypecharpgmagPhotographic magnitudemagphot.mag;em.opt.BfloatOPRVObjective-prism radial velocitykm/sspect.dopplerVeloc;pos.heliocentricinto_OPRVNumber of objective-prism plate pair usedmeta.numberintw_OPRVTotal weight of the velocity determinationstat.weightintSlitRVSlit radial velocitykm/sspect.dopplerVeloc;pos.heliocentricinte_SlitRVrms uncertainty on SlitRVkm/sstat.errorinto_SlitRVNumber of measured lines which went into the determinationmeta.numberintSlitSpTypeSlit (MK) spectral typesrc.spTypecharComIdentification from HD or CoD, and comments (1)meta.notechar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexed

J/AJ/89/1897/table2Probable high-velocity starsNotesNotes (1)meta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRA1950Right ascension (1950)pos.eq.ra;meta.mainDE1950Declination (1950)pos.eq.dec;meta.mainmagPhotographic Magnitudemagphot.mag;em.opt.BfloatSpTypeSpectral typesrc.spTypecharOPRVObjective-prism radial velocitykm/sspect.dopplerVeloc;pos.heliocentricinto_OPRVNumber of objective-prism plate pair usedmeta.numberintw_OPRVTotal weight of the velocity determinationstat.weightintSlitRV? Slit radial velocitieskm/sspect.dopplerVeloc;pos.heliocentricintnullablen_SlitRV[v] Note on radial velocitymeta.notecharNote[CO] Note for stars in table 3 only: C: Confirmed large velocities O: Other listed large velocitiesmeta.notechar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexed

J/AJ/89/1897/table3Other stars of large velocity in the Stock Velocity Survey (SVS, 1984RMxAA...9...77S)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRA1950Right ascension (1950)pos.eq.ra;meta.mainDE1950Declination (1950)pos.eq.dec;meta.mainmagPhotographic Magnitudemagphot.mag;em.opt.BfloatSpTypeSpectral typesrc.spTypecharOPRVObjective-prism radial velocitykm/sspect.dopplerVeloc;pos.heliocentricinto_OPRVNumber of objective-prism plate pair usedmeta.numberintw_OPRVTotal weight of the velocity determinationstat.weightintSlitRV? Slit radial velocitieskm/sspect.dopplerVeloc;pos.heliocentricintnullablen_SlitRV[v] Note on radial velocitymeta.notecharNotesNotes (1)meta.notecharNote[CO] Note for stars in table 3 only: C: Confirmed large velocities O: Other listed large velocitiesmeta.notechar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexed