J/A+A/694/A268ivo://CDS.VizieR/J/A+A/694/A268doi:10.26093/cds/vizier.36940268CDSTala Pinto M.Jordan A.Acuna L.Jones M.Brahm R.Reinarz Y.,Eberhardt J.Espinoza N.Henning T.Hobson M.Rojas F.Schlecker M.,Trifonov T.Bakos G.Boyle G.Csubry Z.Hartmann J.Knepper B.,Kreidberg L.Suc V.Teske J.Butler R.P.Crane J.Schectman S.,Thompson I.Osip D.Ricker G.Collins K.A.Watkins C.N.Bieryla A.,Stockdale C.Wang G.Zambelli R.Seager S.Winn J.Rose M.E.Rice M.,Essack Z.2025-05-21T20:01:56Z2025-02-19T08:09:53ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsspectroscopyradial-velocityvisible-astronomyWe report the discovery and characterization of three new transiting giant planets orbiting TOI-6628, TOI-3837 and TOI-5027, and one new warm sub-Saturn orbiting TOI-2328, whose transits events were detected in the lightcurves of the Transiting Exoplanet Survey Satellite (TESS) space mission. By combining TESS lightcurves with ground-based photometric and spectroscopic follow-up observations, we confirm the planetary nature of the observed transits and radial velocity variations. TOI-6628 b has a mass of 0.74+/-0.06M_J_, a radius of 0.98^+0.06^_-0.05_R_J_ and orbits a metal rich star with a period of 18.18424+/-0.00001 days and an eccentricity of 0.670^+0.015^_-0.016_, making it one of the most eccentric orbits of all known warm giants. TOI-3837 b has a mass of 0.59+/-0.05 M_J_, a radius of 0.97^+0.05^_-0.06_R_J_ and orbits its host star every 11.88865+/-0.00003 days, with a moderate eccentricity of 0.221^+0.042^_-0.046_. With a mass of 2.02+/-0.13M_J_ and a radius of 0.96^+0.05^_-0.06_R_J_, TOI-5027 b orbits its host star in an eccentric orbit with e=0.385^+0.025^_-0.026_ every 10.24368+/-0.00001 days. TOI-2328 b is a Saturn-like planet with a mass of 0.16+/-0.02M_J_ and a radius of 0.89^+0.04^_-0.05_R_J_, orbiting its host star in a nearly circular orbit with e=0.057^+0.046^_-0.029_ at an orbital period of 17.10197+/-0.00001 days. All four planets have orbital periods above 10 days, and our planet interior structure models are consistent with a rocky-icy core with a H/He envelope, providing evidence supporting the core-accretion model of planet formation for this kind of planets.2025A&A...694A.268Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/694/A268CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIV/39 : TESS Input Catalog version 8.2 (TIC v8.2) (Paegert+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/694/A268https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/694/A268http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/694/A268https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/694/A268https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/694/A268http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/694/A268GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/694/A268/stars (List of studied stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/694/A268/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/694/A268/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/694/A268/stars?GETtext/xml+votable180.050000true225.8370417-35.23057780.0055555555555555566/5162 32826 41360 44058https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/694/A268?format=asciiOpticaldefaultJ/A+A/694/A268/starsList of studied stars_RA.icrsRight ascension (ICRS) at Epoch=J2000, proper motions taken into accountpos.eq.raindexed_DE.icrsDeclination (ICRS) at Epoch=J2000, proper motions taken into accountpos.eq.decindexedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintVCShow the Radial Velocity curvesmeta.ref.urlcharNameName (TOI-NNNN)meta.id;meta.maincharRA_ICRSRight ascension (ICRS) at Ep=2015.5pos.eq.ra;meta.mainDE_ICRSDeclination (ICRS) at Ep=2015.5pos.eq.dec;meta.mainpmRAProper motion along RAmas/yrpos.pm;pos.eq.rafloate_pmRAProper motion along RA errormas/yrstat.error;pos.pm;pos.eq.rafloatpmDEProper motion along DEmas/yrpos.pm;pos.eq.decfloate_pmDEProper motion along DE errormas/yrstat.error;pos.pm;pos.eq.decfloatplxParallaxmaspos.parallax.trigfloate_plxParallax errormasstat.error;pos.parallaxfloatTICTIC identification numbermeta.idlongJ/A+A/694/A268/toi6628Radial velocities and activity indices of TOI-6628 (table A1)InstInstrument namemeta.id;instrcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Datedtime.epochdoubleRVRadial velocitym/sphys.veloc;pos.heliocentricfloate_RVRadial velocity errorm/sstat.errorfloatBIS? Bisector spankm/sphys.velocfloatnullablee_BIS? Bisector span errorkm/sstat.errorfloatnullableHalpha? Halpha indexspect.indexfloatnullablee_Halpha? Halpha index errorstat.error;spect.linefloatnullableCaII? CaII indexspect.indexdoublenullablee_CaII? CaII index errorstat.errorfloatnullableHeI? HeI indexspect.indexfloatnullablee_HeI? HeI index errorstat.errorfloatnullableNaII? NaII indexspect.indexfloatnullablee_NaII? NaII index errorstat.errorfloatnullableJ/A+A/694/A268/toi3837Radial velocities and activity indices of TOI-3837 (table A2)e_HeI? HeI index errorstat.errorfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Datedtime.epochdoubleRVRadial velocitym/sphys.veloc;pos.heliocentricfloate_RVRadial velocity errorm/sstat.errorfloatBIS? Bisector spankm/sphys.velocfloatnullablee_BIS? Bisector span errorkm/sstat.errorfloatnullableHalpha? Halpha indexspect.indexfloatnullablee_Halpha? Halpha index errorstat.error;spect.linefloatnullableCaII? CaII indexspect.indexdoublenullablee_CaII? CaII index errorstat.errorfloatnullableHeI? HeI indexspect.indexfloatnullableNaII? NaII indexspect.indexfloatnullablee_NaII? NaII index errorstat.errorfloatnullableInstInstrument namemeta.id;instrcharJ/A+A/694/A268/toi5027Radial velocities and activity indices of TOI-5027 (table A3)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Datedtime.epochdoubleRVRadial velocitym/sphys.veloc;pos.heliocentricfloate_RVRadial velocity errorm/sstat.errorfloatBIS? Bisector spankm/sphys.velocfloatnullablee_BIS? Bisector span errorkm/sstat.errorfloatnullableHalpha? Halpha indexspect.indexfloatnullablee_Halpha? Halpha index errorstat.error;spect.linefloatnullableCaII? CaII indexspect.indexdoublenullablee_CaII? CaII index errorstat.errorfloatnullableHeI? HeI indexspect.indexfloatnullablee_HeI? HeI index errorstat.errorfloatnullableNaII? NaII indexspect.indexfloatnullablee_NaII? NaII index errorstat.errorfloatnullableInstInstrument namemeta.id;instrcharJ/A+A/694/A268/toi2328Radial velocities and activity indices of TOI-2328 (table A4)InstInstrument namemeta.id;instrcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Datedtime.epochdoubleRVRadial velocitym/sphys.veloc;pos.heliocentricfloate_RVRadial velocity errorm/sstat.errorfloatBIS? Bisector spankm/sphys.velocfloatnullablee_BIS? Bisector span errorkm/sstat.errorfloatnullableHalpha? Halpha indexspect.indexfloatnullablee_Halpha? Halpha index errorstat.error;spect.linefloatnullableCaII? CaII indexspect.indexdoublenullablee_CaII? CaII index errorstat.errorfloatnullableHeI? HeI indexspect.indexfloatnullablee_HeI? HeI index errorstat.errorfloatnullableNaII? NaII indexspect.indexfloatnullablee_NaII? NaII index errorstat.errorfloatnullable