J/A+A/660/A86ivo://CDS.VizieR/J/A+A/660/A86doi:10.26093/cds/vizier.36600086CDSMartioli E.Hebrard G.Fouque P.Artigau E.Donati J.-F.Cadieux C.,Bellotti S.Lecavelier des Etangs A.Doyon R.do Nascimento Jr J.-D.,Arnold L.Carmona A.Cook N.J.Cortes-Zuleta P.de Almeida L.,Delfosse X.Folsom C.P.Konig P.-C.Moutou C.Ould-Elhkim M.,Petit P.Stassun K.G.Vidotto A.A.Vandal T.Benneke B.Boisse I.,Bonfils X.Boyd P.Brasseur C.Charbonneau D.Cloutier R.Collins K.,Cristofari P.Crossfield I.Diaz R.F.Fausnaugh M.Figueira P.,Forveille T.Furlan E.Girardin E.Gnilka C.L.Gomes da Silva J.,Gu P.-G.Guerra P.Howell S.B.Hussain G.A.J.Jenkins J.M.Kiefer F.,Latham D.W.Matson R.A.Matthews E.C.Morin J.Naves R.Ricker G.,Seager S.Takami M.Twicken J.D.Vanderburg A.Vanderspek R.Winn J.2025-10-13T20:01:04Z2022-04-20T12:56:20ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsmagnetic-fieldsphotometryvisible-astronomyradial-velocityWe report the detection and characterization of the transiting sub-Neptune TOI-1759 b, using photometric time-series from TESS and near infrared spectropolarimetric data from SPIRou on the CFHT. TOI-1759 b orbits a moderately active M0V star with an orbital period of 18.849975+/-0.000006d, and we measured a planetary radius and mass of 3.06+/-0.22R_{Earth}_ and 6.8+/-2.0M_{Earth}_. At 0.1176+/-0.0013au from the star, the planet receives 6.4 times the bolometric flux incident on Earth, and its equilibrium temperature is estimated at 433+/-14K. TOI-1759 b is a likely gas-dominated sub-Neptune with an expected high rate of photoevaporation. Therefore, it is an interesting target to search for neutral hydrogen escape, which may provide important constraints on the planetary formation mechanisms responsible for the observed sub-Neptune radius desert.2022A&A...660A..86Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/660/A86CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/660/A86https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/660/A86http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/660/A86https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/660/A86https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/660/A86http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/660/A86GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/660/A86/logLog of SPIRou observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintEpEpoch numbermeta.idintDateUT date in ISO 8601 compliant formatstime.epochnullableBJDBarycentric Julian datedtime.epochdoubleBERVBarycentric Earth radial velocitykm/sspect.dopplerVeloc;pos.earth;pos.eopdoubleExpTimeExposure timestime.duration;obs.exposureintAirmassAirmassobs.airMassfloatS/NSignal-to-noise ratio at 1670nmstat.snrintH2OabsH2O relative absorptionphys.absorptionfloatNexp? Exposure number in the polarimetric sequencemeta.id;meta.mainintnullableJ/A+A/660/A86/rvSPIRou radial velocitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian date; units: [d]dtime.epochdoubleRVCCFCCF radial velocity minus the median velocity of -61072.6m/sm/sphys.veloc;pos.heliocentricfloate_RVCCF1-sigma uncertainty in the CCF radial velocitym/sstat.errorfloatRVLBL? LBL radial velocity minus the median velocity of -60992.9m/sm/sphys.veloc;pos.heliocentricfloatnullablee_RVLBL? 1-sigma uncertainty in the LBL radial velocitym/sstat.errorfloatnullableJ/A+A/660/A86/blongLongitudinal magnetic fieldrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintEpEpoch numbermeta.idintBJDBarycentric Julian datedtime.epochdoubleBlA? Longitudinal magnetic field from APERO reductionGphys.magField;obs.paramfloatnullablee_BlA[] 1-sigma uncertainty in the longitudinal magnetic field from APERO reductionGstat.errorfloatBlL? Longitudinal magnetic field from Libre-Esprit reductionGphys.magField;obs.paramfloatnullablee_BlL? 1-sigma uncertainty in the longitudinal magnetic field from Libre-Esprit reductionGstat.errorfloatnullable