J/other/RAA/10.5ivo://CDS.VizieR/J/other/RAA/10.541doi:10.26093/cds/vizier/dx/bakfebCDSLiu J.-C.Zhu Z.2026-02-10T20:06:45Z2010-07-05T09:47:19ZCDS support team

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

cds-question@unistra.frgalaxy-rotationcarbon-starsThe availability of astrometric data and radial velocities of carbon stars near the Galactic plane enables us to investigate the kinematics of the Milky Way, especially the rotation curve. The recently published Third U.S. Naval Observatory CCD Astrograph Catalog (UCAC3) provides the opportunity to test this problem using three-dimensional velocity in order to obtain more reliable rotation curves. We intend to study the Galactic rotation curve up to 15kpc using the radial velocities and proper motions of carbon stars. The motivation for using UCAC3 is to provide high precision proper motions which have hardly been used in determining the rotation velocity of tracers. Seventy-four carbon stars and carbon-rich Mira variables toward the anti-center direction (90{deg}<l<270{deg}, |b|<6{deg}) are picked up from the literature then matched with UCAC3 carbon star candidates to obtain their proper motions. A rigorous geometrical method is employed to compute the rotation velocity of each object. Taking carbon stars as tracers, we find a flat rotation curve of 210+/-12km/s assuming R0=8.0kpc for the galactocentric distance and V0=220km/s for the rotation velocity of the Sun. Due to the uncertainties of distances, the rotation velocities are more dispersed if tangential velocities enter the calculation, compared to those derived from radial velocities only. However, the whole rotation curve shows coherence with previous results. Increasing observation and study of carbon stars would be desirable in order to provide more homogeneous data for the kinematical study of the Galactic disk.2010RAA....10..541Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/RAA/10.541CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/315 : UCAC3 Catalogue (Zacharias+ 2009)III/227 : General Catalog of galactic Carbon stars, 3d Ed. (Alksnis+ 2001)J/A+A/473/143 : C stars near Galactic plane radial velocities (Demers+, 2007)J/A+A/390/511 : Carbon stars millimetre observations. II. (Groenewegen+ 2002)J/MNRAS/369/783 : Carbon stars radial velocities + distances (Menzies+, 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/RAA/10.541https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/RAA/10.541http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/RAA/10.541https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/RAA/10.541https://vizier.iucaa.in/viz-bin/votable?-source=J/other/RAA/10.541http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/RAA/10.541GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/other/RAA/10.541/table1 (Carbon star list (90{deg}<l<270{deg}, |b|<6{deg}))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/RAA/10.541/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/other/RAA/10.541/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/RAA/10.541/table1?GETtext/xml+votable180.050000true8.90658.0070.005555555555555556Cone search capability for table J/other/RAA/10.541/table2 (Carbon star list (90{deg}<l<270{deg}, 3{deg}<|b|<6{deg}))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/RAA/10.541/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/other/RAA/10.541/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/RAA/10.541/table2?GETtext/xml+votable180.050000true1.43565.5160.0055555555555555566/1109 1276 1294 1358 1390 1411 1448 1450 1506 1792 1813 1823 1844 1928 2687 2933-2934 2940 3019 3026 3032 3042 3071 3230 3249 3251-3252 3256 3589 3593-3595 3639 3688 3731-3732 3739-3740 3762 4091 7716 14026 14031 14038 14047-14049 14065 14067 14236 14240 14287 20819 20824 20826 21610 22018 22069 22096 22237-22238 22435 22441 23618-23619 23624 23628-23630 23649 23651 23653 23660 23749 23781 23801 23952 24158 24277 24341 24350 24383-24384 24426 24512 24514 24521 39370 39375 39387 39417 39805 39888 39928 39974 40480 40492-40493 406177.952274030004205e-20 1.0188844282367877e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/other/RAA/10.541?format=asciiOpticaldefaultJ/other/RAA/10.541/table1Carbon star list (90{deg}<l<270{deg}, |b|<6{deg})SimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/74] Sequential number of sourcemeta.recordintNameName of carbon starmeta.id;meta.maincharName2Second name of carbon starmeta.idcharRAJ2000Right ascension in decimal degrees, J2000degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees, J2000degpos.eq.dec;meta.maindHeliocentric distance of starskpcpos.distance;pos.heliocentricfloatpmGlonProper motion along galactic longitudemas/yrpos.pmfloatpmGlatProper motion along galactic latitudemas/yrpos.pmfloatRVRadial velocitykm/sphys.veloc;pos.heliocentricfloatJ/other/RAA/10.541/table2Carbon star list (90{deg}<l<270{deg}, 3{deg}<|b|<6{deg})recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/40] Sequential number of sourcemeta.recordintCGCSRunning number in the CGCS3, Cat. III/227meta.idintGCRV? Running number in Wilson, Cat. III/21meta.idintnullableCRVAD-2? Running number in CRVAD-2, Cat. III/254meta.idintnullableRAJ2000Right ascension in decimal degrees, J2000degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees, J2000degpos.eq.dec;meta.mainKmagK magnitudemagphot.mag;em.IR.KfloatE(B-V)Reddenning correctionmagphot.color.excessfloatAKExtinction in K-bandmagphys.absorptionfloatSimbadSimbad column added by the CDSmeta.ref.urlchar