J/PAZh/33/643ivo://CDS.VizieR/J/PAZh/33/643CDSBobylev V.V.Bajkova A.T.2018-01-12T14:52:58Z2008-03-05T21:40:39ZCDS support team

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

cds-question@unistra.frstellar-associationsproper-motionsradial-velocityapparent-magnitudeA fine structure related to the kinematic peculiarities of three components of the Scorpius-Centaurus association (LCC = Lower Centaurus-Crux, UCL = Upper Centaurus-Lupus, and US = Upper Scorpius) has been revealed in the UV-velocity distribution of Gould Belt stars. We have been able to identify the most likely members of these groups by applying the method of analyzing the two-dimensional probability density function of stellar UV velocities that we developed. A kinematic analysis of the identified structural components has shown that, in general, the center-of-mass motion of the LCC, UCL, and US groups follows the motion characteristic of the Gould Belt, notably its expansion. The entire Scorpius-Centaurus complex is shown to possess a proper expansion with an angular velocity parameter of 46+/-8km/s/kpc for the kinematic center with l_0_=-40{deg} and R_0_=110pc found. Based on this velocity, we have estimated the characteristic expansion time of the complex to be 21+/-4Myr. The proper rotation velocity of the Scorpius-Centaurus complex is lower in magnitude, is determined less reliably, and depends markedly on the data quality.2007PAZh...33..643Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/PAZh/33/643CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/239 : The Hipparcos and Tycho Catalogues (ESA 1997)I/259 : The Tycho-2 Catalogue (Hog+ 2000)III/213 : General Cat. of mean radial velocities (Barbier-Brossat+, 2000)III/252 : Pulkovo radial velocities for 35493 HIP stars (Gontcharov, 2006)J/AZh/83/821 : Compiled stellar radial velocities cat. (OSACA) (Bobylev+, 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/PAZh/33/643https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/PAZh/33/643http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/PAZh/33/643https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/PAZh/33/643https://vizier.iucaa.in/viz-bin/votable?-source=J/PAZh/33/643http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/PAZh/33/643GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/PAZh/33/643/table1 (Gould Belt stars with parallax errors < 20%)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/PAZh/33/643/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/PAZh/33/643/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/PAZh/33/643/table1?GETtext/xml+votable180.050000true154.77133095-64.676287860.0055555555555555566/129 765 940 1055 1762 3986 5108 11856 13677 13724 13802 13944 14115 15478 15481 16220 20491 20756 21386 21401 21402 22146 22773 22889 22964 24085 24091 24160 24608 25113 28784 30722 32147 33707 33850 34054 34244 34781 34829 34886 36487 36940 36960 37006 37012 37058 37120 37129 37230 37231 37268 37314 37330 37414 37419 37592 37593 37662 37785 37787 37789 37790 37814 37826 37827 37832 37881 37888 37900 37928 37990 38151 38168 38382 39033 39044 39183 39194 39201 39216 39217 39220 39352 39354 39355 39375 39685 39702 39928 41105 41122 41147 41295 41516 41606 41607 41625 41633 41634 41641 41646 41652 41705 41710 41711 41726 41798 41869 41917 41963 41971 41983 42173 42237 42406 42407 42414 42428 42465 42617 42618 42620 42623 42633 42640 42656 42658 42672 42687 42694 42728 42738 42742 42751 42789 42808 42924 42948 42960 42977 42984 42987 42994 43011 43012 43017 43018 43019 43021 43035 43038 43062 43067 43086 43093 43099 43115 43117 43127 43137 43140 43150 43153 43157 43165 43183 43205 43210 43211 43225 43229 43238 43259 43272 43333 43345 43360 43375 43377 43378 43383 43397 43407 43414 43416 43429 43460 43521 43530 43531 43538 43677 44036 44043 44054 44081 44086 44101 44136 44293 44306 44307 44310 44312 44316 44319 44321 44352 44354 44359 44360 44363 44366 44368 44371 44378 44385 44389 44393 44502 45382 45746 45927 45944 46922 47205 47287 47299 47626 47777 48163 48263 48274 489053.322582951404819e-19 5.101838343667421e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/PAZh/33/643?format=asciiOpticaldefaultJ/PAZh/33/643/table1Gould Belt stars with parallax errors < 20%recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHIPHIP number (1)meta.id;meta.mainintNameName of cluster or association, in some cases, common name of the star (2)meta.id.parentcharRVMean radial velocitykm/sphys.veloc;pos.heliocentricfloate_RVStandard error in RV if availablekm/sstat.errorfloatn_RVNumber of catalogues for calculation of RVmeta.noteintr_RV? Source of RV (3)meta.ref;pos.framecharP(LCC)Membership probability of LCC (Lower Cen-Cru)stat.fit.goodnessfloatP(UCL)Membership probability of UCL (Upper Cen-Lup)stat.fit.goodnessfloatP(US)Membership probability of US (Upper Sco)stat.fit.goodnessfloatP(Gould)Membership probability of Gould's Beltstat.fit.goodnessfloatplxHipparcos parallaxmaspos.parallax.trigfloate_plx? Error of parallaxmasstat.error;pos.parallaxfloatnullablepmRAProper motion in RA, mu(alpha)*cos(delta)mas/yrpos.pm;pos.eq.radoublepmDEProper motion in DEmas/yrpos.pm;pos.eq.decdoubleVmagJohnson V magnitudemagphot.mag;em.opt.VfloatUVelSpace velocity component on galactic X axiskm/sphys.veloc;pos.cartesian.xfloatVVelSpace velocity component on galactic Y axiskm/sphys.veloc;pos.cartesian.yfloatWVelSpace velocity component on galactic Z axiskm/sphys.veloc;pos.cartesian.zfloate_UVel? Standard error of UVel if e_RV available (4)km/sstat.errorfloatnullablee_VVel? Standard error of VVel if e_RV available (4)km/sstat.errorfloatnullablee_WVel? Standard error of WVel if e_RV available (4)km/sstat.errorfloatnullablee_pmRAError of proper motion in pmRAmas/yrstat.error;pos.pm;pos.eq.rafloate_pmDEError of proper motion in pmDEmas/yrstat.error;pos.pm;pos.eq.decfloatBTmag? Tycho BT magnitudemagphot.mag;em.opt.BfloatnullableVTmag? Tycho VT magnitudemagphot.mag;em.opt.Vfloatnullablee_BTmag? Error of Tycho BT magnitudemagstat.error;phot.mag;em.opt.Bfloatnullablee_VTmag? Error of Tycho VT magnitudemagstat.error;phot.mag;em.opt.VfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlcharRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.main