J/A+A/669/A109ivo://CDS.VizieR/J/A+A/669/A109doi:10.26093/cds/vizier.36690109CDSLillo-Box J.Gandolfi G.Armstrong D.J.Collins K.A.Nielsen L.D.,Luque R.Korth J.Sousa S.G.Quinn S.N.Acuna L.Howell S.B.,Morello G.Hellier C.Giacalone S.Hoyer S.Stassun K.Palle E.,Aguichine A.Mousis O.Adibekyan V.Azevedo Silva T.Barrado D.,Deleuil M.Eastman J.D.Fukui A.Hawthorn F.Irwin J.M.Jenkins J.M.,Latham D.W.Muresan A.Narita N.Persson C.M.Santerne A.Santos N.C.,Savel A.B.Osborn H.P.Teske J.Wheatley P.J.Winn J.N.Barros S.C.C.,Butler R.P.Caldwell D.A.Charbonneau D.Cloutier R.Crane J.D.,Demangeon O.D.S.Diaz R.F.Dumusque X.Esposito M.Falk B.Gill H.,Hojjatpanah S.Kreidberg L.Mireles I.Osborn A.Ricker G.R.,Rodriguez J.E.Schwarz R.P.Seager S.Serrano Bell J.Shectman S.A.,Shporer A.Vezie M.Wang S.X.Zhou G.2024-11-06T20:02:02Z2023-01-24T08:24:12ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsradial-velocityphotometryvisible-astronomyThe current architecture of a given multi-planetary system is a key fingerprint of its past formation and dynamical evolution history. Long-term follow-up observations are key to complete their picture. In this paper we focus on the confirmation and characterization of the components of the TOI-969 planetary system, where TESS detected a Neptune-size planet candidate in a very close-in orbit around a late K-dwarf star. We use a set of precise radial velocity observations from HARPS, PFS and CORALIE instruments covering more than two years in combination with the TESS photometric light curve and other ground-based follow-up observations to confirm and characterize the components of this planetary system. We find that TOI-969 b is a transiting close-in (Pb~1.82days) mini-Neptune planet (m_b_=9.1^+1.1^_1.0_M_{Earth}_, R_b_=2.765^+0.088^_0.097_R_{Earth}_), thus placing it on the {lower boundary} of the hot-Neptune desert (T_eq,b_=941+/-31K). The analysis of its internal structure shows that TOI-969 b is a volatile-rich planet, suggesting it underwent an inward migration. The radial velocity model also favors the presence of a second massive body in the system, TOI-969 c, with a long period of P_c_=1700^+290^_280_days and a minimum mass of m_c_sini_c_=11.3^+1.1^_0.9_M_Jup_, and with a highly-eccentric orbit of e_c_=0.628^+0.043^_0.036_. The TOI-969 planetary system is one of the few around K-dwarfs known to have this extended configuration going from a very close-in planet to a wide-separation gaseous giant. TOI-969 b has a transmission spectroscopy metric of 93, and it orbits a moderately bright (G=11.3mag) star, thus becoming an excellent target for atmospheric studies. The architecture of this planetary system can also provide valuable information about migration and formation of planetary systems.2023A&A...669A.109Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/669/A109CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/669/A109https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/669/A109http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/669/A109https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/669/A109https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/669/A109http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/669/A109GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/669/A109/tessTESS light curve time series (table A1)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPDCSAPTESS PDCSAP relative fluxphot.flux;arith.ratiodoublee_PDCSAPTESS PDCSAP relative flux uncertaintystat.errordoubleFluxdetDetrended TESS relative flux from joint MCMC fitphot.flux;arith.ratiodoublee_FluxdetDetrended TESS relative flux uncertainty from joint MCMC fitstat.errordoubleInstInstrument (TESS07 or TESS34)meta.id;instrcharBJDBarycentric Julian datedtime.epochdoubleJ/A+A/669/A109/gbGround-based light curves of TOI-969 from the LCOGT and MEarth facilities (table A2)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian datedtime.epochdoubleFluxRaw relative fluxphot.flux;arith.ratiodoublee_FluxRaw relative flux uncertaintystat.error;phot.fluxdoubleFluxdetDetrended relative flux from joint MCMC fitphot.flux;arith.ratiodoublee_FluxdetDetrended relative flux unc from joint MCMC fitstat.errordoubleAirmassAirmassobs.airMassdoubleInstInstrument (1)meta.id;instrcharJ/A+A/669/A109/waspPhotometric time series from WASP (table A3)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFluxRaw relative fluxphot.flux;arith.ratiodoublee_FluxRaw relative flux uncertaintystat.error;phot.fluxdoubleBJDBarycentric Julian datedtime.epochdoubleindexedJ/A+A/669/A109/rvRV data set for TOI-969 (table A4)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian datedtime.epochdoubleRVRadial velocitykm/sphys.veloc;pos.heliocentricdoublee_RVRadial velocity uncertaintykm/sstat.errordoubleFWHM? FWHM of the CCFkm/sspect.line.widthdoublenullablee_FWHM? FWHM uncertainty of the CCFkm/sstat.error;phys.angSizedoublenullableBIS? BIS-SPAN of the CCFphys.velocdoublenullablee_BIS? BIS-SPAN uncertainty of the CCFstat.errordoublenullableCont? CONTRAST of the CCFstat.fit.paramdoublenullablee_Cont? CONTRAST uncertainty of the CCFstat.errordoublenullableSindex? S-index with Mount-Wilson calibrationphot.flux;arith.ratiodoublenullablee_Sindex? S-index uncertaintystat.errordoublenullablelogRHK? logRHK indexphot.flux;arith.ratiodoublenullablee_logRHK? logRHK index uncertaintystat.errordoublenullableInstInstrument (CORALIE, HARPS or PFS)meta.id;instrchar