J/A+A/563/A138ivo://CDS.VizieR/J/A+A/563/A138doi:10.26093/cds/vizier.35630138CDSVeramendi M.E.Gonzalez J.F.2026-01-13T19:42:14Z2014-03-25T07:06:56ZCDS support team

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

cds-question@unistra.frmultiple-starsradial-velocityspectroscopyThe present knowledge of stellar properties and dynamical structure of early-type multiple stellar systems is insufficient to offer useful statistical constraints for stellar formation models. To increase the amount of observational information about the characteristics of early-type multiples, we carried out a spectroscopic monitoring to search for new spectroscopic components and to determine their orbits. We observed 30 early-type multiple systems using the 2.15m telescope and REOSC echelle spectrograph at the Complejo Astronomico El Leoncito (CASLEO) during 10 observing runs between 2008 and 2013. We measured radial velocities by cross-correlations and applied a spectral disentangling method to double-lined systems. We calculated orbital elements for the inner subsystem of each analysed multiple. In this first paper we present calculated orbits for six previously catalogued subsystems. Three subsystems had no previously published parameters, while we obtained more accurate orbits for the other three. In one case we found absolute masses and radii for the components by using available photometric data. The long-term spectroscopic monitoring of multiple systems is a useful method of investigating the companions in intermediate hierarchical levels, particularly those that could affect the dynamical evolution of a close inner binary subsystem.2014A&A...563A.138Vhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/563/A138CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+AS/124/75 : Multiple Star Catalogue (MSC, Tokovinin 1997-1999)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/563/A138https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/563/A138http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/563/A138https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/563/A138https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/563/A138http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/563/A138GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/563/A138/table2 (Components of multiple systems observed and analysed in this paper)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/563/A138/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/563/A138/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/563/A138/table2?GETtext/xml+votable180.050000true68.8088167-9.73636940.005555555555555556Associated datahttps://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/A+A/563/A1386/22632 28808 33905 37826 39279 44389https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/563/A138?format=asciidefaultJ/A+A/563/A138/table2Components of multiple systems observed and analysed in this paperrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWDSWDS name of system (B/wds)meta.id.parentcharCompComponent designationmeta.code.multipcharHDHD number of systemmeta.id;meta.mainintNspNumber of spectrameta.numberintSpT.lLiterature MK spectral typesrc.spTypecharSpTypeThis paper MK spectral typemeta.bibcharRemResultsmeta.notecharSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/A+A/563/A138/listList of individual spectrarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlam.min[3599/4031] Lower value of wavelength interval0.1nminstr.bandwidthfloatlam.max[5900/6481] Upper value of wavelength interval0.1nminstr.bandwidthfloatdlam[0.13/0.16] Wavelength resolution0.1nmspect.resolutiondoubleNx[14952/18303] Number of pixels along X-axismeta.numberintsize[65/79] Size of FITS fileKibytephys.size;meta.fitsintHDProperties (spectral types)meta.ref.urlcharspShow the spectrum (370-640nm)meta.ref.urlcharFileNameName of FITS file in subdirectory spmeta.id;meta.fitscharObs.DateObservaiton datetime.epochnullableTitleTitle of the filemeta.notechar