J/AJ/165/220ivo://CDS.VizieR/J/AJ/165/220doi:10.26093/cds/vizier/be-55-6wCDSTokovinin A.2026-07-02T11:44:26Z2023-10-16T07:34:28ZCDS support team

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

cds-question@unistra.frmultiple-starsvisible-astronomyspectroscopyradial-velocitytrigonometric-parallaxResults of a large program of spectroscopic monitoring of nearby solar-type stellar hierarchical systems using the CHIRON echelle spectrograph at the 1.5m telescope are summarized. Ten papers of this series contain 102 spectroscopic orbits and substantially contribute to the knowledge of periods and eccentricties, providing input for the study of their formation and early evolution. Radial velocities of an additional 91 targets without CHIRON orbits (members of wide physical pairs) are published here. Our results are compared to the recent Gaia nonsingle star (NSS) catalog, revealing its strengths and weaknesses. The NSS provides orbital periods for 31 objects of the CHIRON sample (about one third). Of the 22 spectroscopic NSS orbits in common, 14 are in good agreement with CHIRON, the rest have reduced velocity amplitudes or other problems. Hence ground-based monitoring gives, so far, a more accurate and complete picture of nearby hierarchies than Gaia. The distribution of inner periods in hierarchical systems is nonmonotonic, showing a shallow minimum in the 30-100 days bin and a strong excess at shorter periods, compared to the smooth distribution of simple binaries in the field. The period-eccentricity diagram of inner subsystems updated by this survey, recent literature, and Gaia, displays an interesting structure.2023AJ....165..220Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/165/220CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/sb9 : SB9; 9th Catalogue of Spectroscopic Binary Orbits (Pourbaix+ 2004-2014)V/122 : SB9; 9th Catalogue of Spectroscopic Binary Orbits (Pourbaix+ 2005)V/117 : Geneva-Copenhagen Survey of Solar neighbourhood (Holmberg+, 2007)J/A+A/374/227 : Radial velocity in multiple systems (Tokovinin+, 2001)J/A+A/382/118 : Spectro. sub-systems in multiple stars (Tokovinin+, 2002)J/A+A/450/681 : Companions close spectroscopic binaries (Tokovinin+, 2006)J/A+A/465/257 : Radial velocity in multiple systems (Tokovinin+, 2007)J/ApJS/190/1 : A survey of stellar families (Raghavan+, 2010)J/AJ/144/7 : NIR imaging Hipparcos astrometric binary (Tokovinin+, 2012)J/MNRAS/441/2316 : 10 nearby solar-type dwarfs RV curves (Gorynya+, 2014)J/AJ/147/87 : From binaries to multiples. II. Statistics (Tokovinin, 2014)J/AJ/147/86 : From binaries to multiples I. FG-67 sample (Tokovinin, 2014)J/AJ/152/11 : Orbits of four triple stars (Tokovinin, 2016)J/AJ/152/10 : Spectro. of subsystems in 4 multiple stars (Tokovinin, 2016)J/ApJS/235/6 : Updated Multiple Star Catalog; Sept 2021 (Tokovinin, 2018)J/AJ/156/48 : Orbits subsystems in 6 multiple stars III. (Tokovinin, 2018)J/AJ/156/194 : Orbits double-lined pairsmultiple stars (Tokovinin, 2018)J/AJ/157/91 : RVels of subsystems in multiple stars (Tokovinin, 2019)J/AJ/158/222 : Orbits subsystems in multiple stars. VI. (Tokovinin, 2019)J/MNRAS/506/150 : The GALAH+ Survey DR3 (Buder+, 2021)J/ApJ/921/117 : 43yr spectro. monitoring of Pleiades region (Torres+, 2021)J/AJ/163/161 : Spectro Subsystems Multiple Stars. VIII. (Tokovinin, 2022)J/AJ/165/160 : Subsystems orbits in multiple stars. IX (Tokovinin, 2023)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/165/220https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/165/220http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/165/220https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/165/220https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/165/220http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/165/220GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/165/220/table2 (Main CHIRON sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/165/220/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/165/220/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/165/220/table2?GETtext/xml+votable180.050000true3.440421118.193533890.0055555555555555566/618 16930 17355 17619 17946 18236 18613 18856 19543 19553 19993 21304 21637 21811 22779 23632 23683 25360 26980 27931 28947 29431 29454 31104 31265 31768 31848 32791 32812 32999 33734 33787 33831 33943 34040 34338 34600 34810 35128 35212 35530 35675 35749 36001 36072 36854 36971 37176 37207 37424 38215 38834 39464 39718 39730 40146 40658 41255 41425 41678 42216 42278 42607 42708 42899 43023 43072 44517 44871 45137 45272 45475 46077 46199 46255 46629 46721 46778 47368 47570 47930 48022 48176 48313 49015https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/165/220?format=asciiOpticaldefaultJ/AJ/165/220/table2Main CHIRON sampleSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHIPHipparcos numbermeta.id;meta.mainintprimaryRAJ2000[3/358] Right Ascention (J2000)degpos.eq.ra;meta.mainDEJ2000[-84/20] Declination (J2000)degpos.eq.dec;meta.mainVmag[5.23/10.3] Visual magnitudemagphot.mag;em.opt.Vfloatplx[3.25/51.1] Parallaxmaspos.parallax.trigfloatPer[0.0/7341.5] Orbital perioddtime.periodfloatFlag[0/2] SB flag (2)meta.code.errorcharRefPaper number in the series (3)meta.refcharRVelIndicate that radial velocities are available (table4)meta.ref.urlcharWDSWDS (J2000) codemeta.idcharCompComponent of the multiple systemmeta.id.assoccharr_plxReference to parallax (1)meta.refcharJ/AJ/165/220/table4Radial veocities of Stars in wide pairsHIPHipparcos numbermeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCompComponentmeta.id.assoccharJD[57255/59619] Julian date JD-2400000dtime.epochdoubleRVel[-118/106] Radial Velocitykm/sspect.dopplerVelocdoubleAmp[0.01/0.53] CCF amplitudesrc.var.amplitudefloatSigma[3.3/58.7] CCF rms widthkm/sinstr.det.noisefloat