J/AN/341/989ivo://CDS.VizieR/J/AN/341/989doi:10.26093/cds/vizier.113410989CDSBischoff R.Mugrauer M.Lux O.Zehe T.Heyne T.Wagner D.Geymeier M.2025-09-29T20:18:19Z2021-01-26T09:20:01ZCDS support team

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

cds-question@unistra.frspectroscopic-binary-starsradial-velocityIn 2015 a radial velocity monitoring campaign was started in order to redetermine and/or constrain the orbital solutions of spectroscopic binary systems. The observations were carried out at the University Observatory Jena with the echelle spectrograph FLECHAS. The results from the main part of our target sample are already published. For the final target of this campaign, theta Cep, we can now present an orbital solution based on a homogeneously covered radial velocity curve. The period of this single-lined spectroscopic binary turns out to be significantly larger and the orbit is much more eccentric compared to the given values in the 9th Catalogue of Spectroscopic Binary Orbits (Pourbaix et al., Cat. B/sb9).2020AN....341..989Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AN/341/989CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AN/341/989https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AN/341/989http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AN/341/989https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AN/341/989https://vizier.iucaa.in/viz-bin/votable?-source=J/AN/341/989http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AN/341/989GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/AN/341/989/table3Orbital elements of theta CeprecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPPerioddtime.periodfloate_PError of perioddstat.errorfloatT0Periastron time (BJD)dsrc.orbital.periastrondoublee_T0Error of periastron time (BJD)dstat.errorfloatKRV semi-amplitudekm/ssrc.var.amplitudefloate_KError of RV semi-amplitudekm/sstat.errorfloatgammaSystemic velocitykm/sphys.velocfloate_gammaError of systemic velocitykm/sstat.errorfloateEccentricitysrc.orbital.eccentricityfloate_eError of eccentricitystat.errorfloatomegaArgument of periastrondegsrc.orbital.periastronfloate_omegaError of argument of periastrondegstat.errorfloatJ/AN/341/989/tablea1theta Cep RV measurementsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date of observationdtime.epochdoubleRVRadial velocity (1)km/sphys.veloc;pos.heliocentricfloat