J/A+A/671/A10ivo://CDS.VizieR/J/A+A/671/A10doi:10.26093/cds/vizier/bc-mz/lbaCDSSubjak J.Lodieu N.Kabath P.Boffin H.M.J.Nowak G.Grundahl F.,Bejar V.J.S.Zapatero Osorio M.R.Antoci V.2026-07-01T14:00:33Z2023-02-28T16:25:26ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsstellar-agesspectroscopyradial-velocityvisible-astronomyThe project aims to understand better the role of wide brown dwarf companions on planetary systems. We obtained high-resolution spectra of six bright stars with co-moving wide substellar companions with the SONG, CARMENES, and STELLA high-resolution spectrographs. We used these spectra to derive radial velocities together with a complete set of stellar physical parameters. We then investigated radial velocities signals and discussed the fraction of planets in such systems. We also re-analyzed the ages of our targets, which were used to derive the physical parameters of wide brown dwarf companions. Finally, a compilation of systems with known planets from the literature is considered along with our sample to search for possible peculiarities in their parameter distributions. Based on the derived ages of six observed systems, we re-computed the masses of the wide companions, confirming their substellar nature. We confirmed planets in the HD3651 and HIP70849 systems and found a new planetary candidate in the HD46588 system. In our survey, which is sensitive mostly to Neptune-mass planets at short periods of a few days and Saturn-mass planets at longer periods of hundreds of days, we derived a frequency of planets orbiting stars with wide brown dwarf companions below 70% with the uncertainties included. Comparing the parameter distributions of our sample with single stars, we observe the enhancement of planets with short periods below six days in systems with a wide stellar companion. Finally, planets in systems with wide BD companions follow their own eccentricity distribution with a maximum at ~0.65 and have periods larger than 40 days, masses larger than 0.1M_J_, and eccentricities larger than 0.4.2023A&A...671A..10Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/671/A10CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/671/A10https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/671/A10http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/671/A10https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/671/A10https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/671/A10http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/671/A10GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/671/A10/table1 (System parameters for stars in our sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/671/A10/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/671/A10/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/671/A10/table1?GETtext/xml+votable180.050000true199.19383339.42415830.0055555555555555566/8109 12592 13122 19912 26030 265218.650015785639275e-20 5.101838343667421e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/671/A10?format=asciiOpticaldefaultJ/A+A/671/A10/table1System parameters for stars in our samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintVCShow the Radial Velocity curvesmeta.ref.urlcharRVCShow the Relative Radial Velocity curvesmeta.ref.urlcharNameStar namemeta.id;meta.maincharRAJ2000Gaia EDR3 Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Gaia EDR3 Declination (J2000)pos.eq.dec;meta.mainTmagTESS T magnitudemagphot.mag;em.optfloate_TmagTESS T magnitude errormagstat.error;phot.magfloatGmagGaia EDR3 G magnitudemagphot.mag;em.optfloate_GmagGaia G magnitude errormagstat.error;phot.magfloatBTmagTycho BT magnitudemagphot.mag;em.opt.Bfloate_BTmagTycho BT magnitude errormagstat.error;phot.magfloatVTmagTycho VT magnitudemagphot.mag;em.opt.Vfloate_VTmagTycho VT magnitude errormagstat.error;phot.magfloatJmag2MASS J magnitudemagphot.mag;em.IR.Jfloate_Jmag2MASS J magnitude errormagstat.error;phot.magfloatHmag2MASS H magnitudemagphot.mag;em.IR.Hfloate_Hmag2MASS H magnitude magmagstat.error;phot.magfloatKsmag2MASS Ks magnitudemagphot.mag;em.IR.Kfloate_Ksmag2MASS Ks magnitude errormagstat.error;phot.magfloatW1magWISE1 magnitudemagphot.mag;em.IR.3-4umfloate_W1magWISE1 magnitude errormagstat.error;phot.magfloatW2magWISE2 magnitudemagphot.mag;em.IR.4-8umfloate_W2magWISE2 magnitude errormagstat.error;phot.magfloatW3magWISE3 magnitudemagphot.flux.density;em.IR.8-15umfloate_W3magWISE3 magnitude errormagstat.error;phot.magfloatW4magWISE4 magnitudemagphot.flux.density;em.IR.15-30umfloate_W4magWISE4 magnitude errormagstat.error;phot.magfloatpmRAGaia EDR3 Proper motion along RA, pmRAcosDEmas/yrpos.pm;pos.eq.radoublee_pmRAProper motion along RA, pmRAcosDE, errormas/yrstat.error;pos.pm;pos.eq.rafloatpmDEGaia EDR3 Proper motion along DEmas/yrpos.pm;pos.eq.decdoublee_pmDEProper motion along DEmas/yrstat.error;pos.pm;pos.eq.decfloatPlxGaia EDR3 Parallaxmaspos.parallax.trigfloate_PlxParallax errormasstat.error;pos.parallaxfloatJ/A+A/671/A10/rvsSONG, CARMENES, STELLA radial velocitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharSpecSpectrographmeta.id;instrcharBJDBarycentric Julian datedtime.epochdoubleRVRadial velocity or relative radial velocity (1)m/sphys.veloc;pos.heliocentricdoublee_RVrms uncertainty on Radial velocitym/sstat.errordouble