J/A+A/700/A242ivo://CDS.VizieR/J/A+A/700/A242doi:10.26093/cds/vizier/bc-nw/lcecCDSMorales J.C.Ribas I.Reffert S.Perger M.Dreizler S.,Anglada-Escude G.Bejar V.J.S.Herrero E.Kemmer J.Kuzuhara M.,Lafarga M.Livingston J.H.Murgas F.Ogunwale B.Tal-Or L.Trifonov T.,Vanaverbeke S.Amado P.J.Quirrenbach A.Reiners A.Caballero J.A.,Aguei Fernandez J.F.Banegas J.Chaturvedi P.Dufoer S.Hatzes A.P.,Henning T.Rodriguez-Lopez C.Schweitzer A.Solano E.Zechmeister M.,Harakawa H.Kotani T.Omiya M.Sato B.Tamura M.2026-08-03T06:56:39Z2025-08-25T08:42:36ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsm-starsspectroscopyradial-velocityphotometryvisible-astronomySurveys for exoplanets indicate that the occurrence rate of gas giant planets orbiting late-type stars in orbits with periods shorter than 1000 days is lower than in the case of Sun-like stars, in agreement with planet formation models based on the core/pebble accretion paradigm. The CARMENES exoplanet survey has been conducting radial-velocity observations of several targets showing long-period trends or modulations that are consistent with the presence of giant planets at large orbital separations. We present here the analysis of five such systems that have been monitored with the CARMENES spectrograph, as well as with the IRD spectrograph. We additionally use of archival data to improve the orbital parameters of the planetary systems. We improve parameters of three previously-known planets orbiting the M dwarfs GJ 317, GJ 463, and GJ 3512. We also determine the orbital parameters and minimum mass of the planet GJ 3512 c, for which only lower limits had been given earlier. Furthermore, we present the discovery of two new giant planets orbiting the stars GJ 9733 and GJ 508.2, although for the second one only lower limits to the orbital properties can be determined. The new planet discoveries add to the short list of known giant planets orbiting M-dwarf stars with subsolar metallicity at long orbital periods above 2000 days. The results reveal that giant planets appear to form more frequently in wide orbits than in close-in orbits around low-mass and lower metallicity stars.2025A&A...700A.242Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/700/A242CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/700/A242https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/700/A242http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/700/A242https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/700/A242https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/700/A242http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/700/A242GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/700/A242/stars (List of studied stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/700/A242/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/700/A242/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/700/A242/stars?GETtext/xml+votable180.050000true130.333833359.49733330.0055555555555555566/7395 10465 11255 19352 40513https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/700/A242?format=asciiOpticaldefaultJ/A+A/700/A242/starsList of studied starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharRAJ2000Simbad right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Simbad declination (J2000)pos.eq.dec;meta.mainKarmnCARMENES ID (JHHMMm+DDd)meta.idcharrvplotShow the Radial Velocity curvesmeta.ref.urlcharrvName of the table with RV datameta.id;meta.filecharIdxdisplay the Spectroscopic indices data of table A6meta.ref.urlcharlcplotShow the light curvesmeta.ref.urlcharlcName of the table with LC datameta.id;meta.filecharJ/A+A/700/A242/tablea1GJ 3512 CARMENES and IRD radial velocity measurementsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian datedtime.epochdoubleRVRadial velocitym/sphys.veloc;pos.heliocentricfloate_RVRadial velocity uncertaintym/sstat.errorfloatInstInstrument flag (1)meta.code.error;instrcharJ/A+A/700/A242/tablea2GJ 317 CARMENES radial velocity measurementsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian datedtime.epochdoubleRVRadial velocitym/sphys.veloc;pos.heliocentricfloate_RVRadial velocity uncertaintym/sstat.errorfloatInstInstrument flag (1)meta.code.error;instrcharJ/A+A/700/A242/tablea3GJ 463 CARMENES radial velocity measurementsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian datedtime.epochdoubleRVRadial velocitym/sphys.veloc;pos.heliocentricfloate_RVRadial velocity uncertaintym/sstat.errorfloatInstInstrument flag (1)meta.code.error;instrcharJ/A+A/700/A242/tablea4GJ 9773 CARMENES radial velocity measurementsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian datedtime.epochdoubleRVRadial velocitym/sphys.veloc;pos.heliocentricfloate_RVRadial velocity uncertaintym/sstat.errorfloatInstInstrument flag (1)meta.code.error;instrcharJ/A+A/700/A242/tablea5GJ 508.2 CARMENES radial velocity measurementsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian datedtime.epochdoubleRVRadial velocitym/sphys.veloc;pos.heliocentricfloate_RVRadial velocity uncertaintym/sstat.errorfloatInstInstrument flag (1)meta.code.error;instrcharJ/A+A/700/A242/tablea6Spectroscopic indices time seriesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian datedtime.epochdoubleindexedIndValue of the spectroscopic indicatorspect.indexdoublee_IndUncertainty of the spectroscopic indicatorstat.errordoubleFlagSpectroscopic index flag (2)meta.code.errorcharKarmnCARMENES ID of the target (JHHMMm+DDd)meta.id;meta.maincharJ/A+A/700/A242/tableb1GJ 9773 photometric time seriesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian datedtime.epochdoubleFluxNormalised fluxphot.flux;arith.ratiofloate_FluxNormalised uncertaintystat.error;phot.fluxfloatObsObservatory and filter flag (2)meta.id;instr.obstycharJ/A+A/700/A242/tableb2GJ 508.2 photometric time seriese_FluxNormalised uncertaintystat.error;phot.fluxfloatObsObservatory and filter flag (2)meta.id;instr.obstycharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian datedtime.epochdoubleFluxNormalised fluxphot.flux;arith.ratiofloat