J/AJ/106/1839ivo://CDS.VizieR/J/AJ/106/1839doi:10.26093/cds/vizier.51061839CDSRodgers A.W.Roberts W.H.2023-04-06T16:50:04Z1999-01-08T13:22:13ZCDS support team

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

cds-question@unistra.frearly-type-starsradial-velocityline-intensitiesThe results of spectrophotometry of the Ca II K and Balmer lines and radial velocity measurements for stars earlier than type F0, with 10<V<15.5 in fields at (l;b)=(90deg, 270deg; -45deg) are reported. Slit spectroscopy of 320 stars shows that in this magnitude range there are ~80 stars with [Fe/H]>-0.5. The metal-rich population has a vertical scale height of ~600pc and a space density at the Sun equal to 1/225 of the young thin disk A star population. The metal-rich A stars have V_rot_=210+/-60km/s with decreasing angular momentum as a function of distance from the Galactic plane. The line-of-sight velocity dispersion is 40+/-3km/s indicating an anomalous relation between structure and kinematics. There is strong evidence that these stars are identical in properties to the metal-rich extended populations found by Perry [1969AJ.....74..139P] at the NGP and Rodgers [1971ApJ...165..581R] at the SGP.1993AJ....106.1839Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/106/1839CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/106/591 : OP Survey of Halo early-type stars (Rodgers+ 1993)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/106/1839https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/106/1839http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/106/1839https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/106/1839https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/106/1839http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/106/1839GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/106/1839/table1 (Spectrophotometry and radial velocities of stars classified as of type earlier than F0 in the fields (l;b)=(90 deg, 270 deg; -45 deg) from the catalog of Paper I)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/106/1839/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/106/1839/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/106/1839/table1?GETtext/xml+votable180.050000true47.20245-67.857290.0055555555555555565/4723 4725 4727 4735 4904 4907 4992-4993 8294-8295 8299-8300 8302 8312-8313 8315 6/18810-18811 18887 18889 18896 18898-18899 18906-18907 18916-18917 18919 18929-18932 18935 19285 19287 19594-19595 19598 19620 19622-19624 19626 19640 19642 19646 19976-19977 19979-19980 19982 19984-19986 19992 20004 33021 33165-33166 33170-33171 33185-33188 33190-33193 33195 33204-33206 33212-33214 33226-33227 33256-33257 33259 33264 33267 33270 33274-33275 33541 33543 33552-33554 33556-33557 33559 33600 33603-33605 33608-33609 33616https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/106/1839?format=asciiOpticaldefaultJ/AJ/106/1839/table1Spectrophotometry and radial velocities of stars classified as of type earlier than F0 in the fields (l;b)=(90 deg, 270 deg; -45 deg) from the catalog of Paper INameObject identifiermeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintEWKEquivalent width of Ca II K0.1nmspect.line.eqWidth;em.IR.KfloatEWHdEquivalent width of Ca II Hdelta0.1nmspect.line.eqWidth;em.line.HdeltafloatRVRadial velocity rel. to Local Std. of Restkm/sspect.dopplerVelocintGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.lat_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)degpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)degpos.eq.decnullableindexed