J/A+A/680/A84ivo://CDS.VizieR/J/A+A/680/A84doi:10.26093/cds/vizier/bc-n8/lieCDSMartioli E.Hebrard G.de Almeida L.Heidari N.Lorenzo-Oliveira D.,Kiefer F.Almenara J.M.Bieryla A.Boisse I.Bonfils X.Briceno C.,Collins K.A.Cortes-Zuleta P.Dalal S.Deleuil M.Delfosse X.,Demangeon O.Eastman J.D.Forveille T.Furlan E.Howell S.B.,Hoyer S.Jenkins J.M.Latham D.W.Law N.Mann A.W.Moutou C.,Santos N.C.Sousa S.G.Stassun K.G.Stockdale C.Torres G.,Twicken J.D.Winn J.N.Ziegler C.2026-07-03T06:35:44Z2023-12-15T09:52:42ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsg-starsphotometryvisible-astronomyradial-velocityPlanetary systems around solar analogs inform us about how planets form and evolve in solar system-like environments. We report the detection and characterization of two planetary systems around the solar analogs TOI-1736 and TOI-2141 using TESS photometry data and spectroscopic data obtained with the SOPHIE instrument on the 1.93 m telescope at the Observatoire de Haute-Provence (OHP). We performed a detailed spectroscopic analysis of these systems to obtain the precise radial velocities and physical properties of their host stars. TOI-1736 and TOI-2141 each host a transiting sub-Neptune with radii of 2.44+/-0.18 and 3.05+/-0.23R_{Earth}_, orbital periods of 7.073088(7)d and 18.26157(6)d, and masses of 12.8+/-1.8M_{Earth}_ and 24+/-4M_{Earth}_, respectively. TOI-1736 shows long-term radial velocity variations that are consistent with a two-planet solution plus a linear trend of -0.177m/s/d. We measured an RV semi-amplitude of 201.1+/-0.7m/s for the outer companion, TOI-1736 c, implying a projected mass of msin(i)=8.09+/-0.20M_Jup_. From the GAIA DR3 astrometric excess noise, we constrained the mass of TOI-1736 c at 8.7+/-1.5M_{Jup}_. This planet is in an orbit of 570.2+/-0.6d with an eccentricity of 0.362+/-0.003 and a semi-major axis of 1.381+/-0.017au, where it receives a flux of 0.71+/-0.08 times the bolometric flux incident on Earth, making it an interesting case of a supergiant planet that has settled into an eccentric orbit in the habitable zone of a solar analog. Our analysis of the mass-radius relation for the transiting sub-Neptunes shows that both TOI-1736 b and TOI-2141 b likely have an Earth-like dense rocky core and a water-rich envelope.2023A&A...680A..84Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/680/A84CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/680/A84https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/680/A84http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/680/A84https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/680/A84https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/680/A84http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/680/A84GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/680/A84/toi1736SOPHIE data for TOI-1736 (table A1)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObsIDObservation indexmeta.code;spect.index;obsintBJDBarycentric Julian datedtime.epochdoubleRVRadial velocitykm/sphys.veloc;pos.heliocentricdoublee_RV1-sigma uncertainty in the radial velocitykm/sstat.errorfloatBERVBarycentric Earth radial velocitykm/sphys.veloc;pos.barycenterdoubleExpTimeExposure timestime.duration;obs.exposureintS/NSignal-to-noise ratio measured at 649nmstat.snrintFWHMFull width at half maximum of CCFkm/sspect.line.widthfloate_FWHM1-sigma uncertainty in the FWHM of CCFkm/sstat.error;phys.angSizefloatBisBisector spankm/sphys.velocfloate_Bis1-sigma uncertainty in the bisector spankm/sstat.errorfloatSMWS-index calibrated to the Mount Wilson Observatory systemphot.flux;arith.ratiofloate_SMW1-sigma uncertainty in the SMWstat.errorfloatHalphaH-alpha indexspect.indexfloate_Halpha1-sigma uncertainty in the H-alpha indexstat.error;spect.linefloatJ/A+A/680/A84/toi2141SOPHIE data for TOI-2141 (table A2)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObsIDObservation indexmeta.code;spect.index;obsintBJDBarycentric Julian datedtime.epochdoubleRVRadial velocitykm/sphys.veloc;pos.heliocentricdoublee_RV1-sigma uncertainty in the radial velocitykm/sstat.errorfloatBERVBarycentric Earth radial velocitykm/sphys.veloc;pos.barycenterdoubleExpTimeExposure timestime.duration;obs.exposureintS/NSignal-to-noise ratio measured at 649nmstat.snrintFWHMFull width at half maximum of CCFkm/sspect.line.widthfloate_FWHM1-sigma uncertainty in the FWHM of CCFkm/sstat.error;phys.angSizefloatBisBisector spankm/sphys.velocfloate_Bis1-sigma uncertainty in the bisector spankm/sstat.errorfloatSMWS-index calibrated to the Mount Wilson Observatory systemphot.flux;arith.ratiofloate_SMW1-sigma uncertainty in the SMWstat.errorfloatHalphaH-alpha indexspect.indexfloate_Halpha1-sigma uncertainty in the H-alpha indexstat.error;spect.linefloat