J/AJ/168/135ivo://CDS.VizieR/J/AJ/168/135doi:10.26093/cds/vizier.51680135CDSPidhorodetska D.Gilbert E.A.Kane S.R.Barclay T.Polanski A.S.,Hill M.L.Stassun K.G.Giacalone S.Ciardi D.R.Boyle A.W.,Howell S.B.Lillo-Box J.MacDougall M.G.Fetherolf T.Batalha N.M.,Crossfield I.J.M.Dressing C.Fulton B.Howard A.W.Huber D.,Isaacson H.Petigura E.A.Robertson P.Weiss L.M.Angelo I.Beard C.,Behmard A.Blunt S.Brinkman C.L.Chontos A.Dai F.Dalba P.A.,Holcomb R.Lubin J.Mayo A.W.Murphy J.M.A.Rice M.Rubenzahl R.,Scarsdale N.Turtelboom E.V.Tyler D.van Zandt J.Schwieterman E.W.2025-06-02T20:09:18Z2025-05-05T13:06:19ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsradial-velocityvisible-astronomyspectroscopyinfrared-sourcessurveysExoplanet discoveries have revealed a dramatic diversity of planet sizes across a vast array of orbital architectures. Sub-Neptunes are of particular interest; due to their absence in our own solar system, we rely on demographics of exoplanets to better understand their bulk composition and formation scenarios. Here, we present the discovery and characterization of TOI-1437 b, a sub-Neptune with a 18.84 day orbit around a near-solar analog (M*=1.10+/-0.10M_{sun}_, R*=1.17+/-0.12R_{sun}_). The planet was detected using photometric data from the Transiting Exoplanet Survey Satellite (TESS) mission and radial velocity (RV) follow-up observations were carried out as a part of the TESS-Keck Survey using both the HIRES instrument at Keck Observatory and the Levy Spectrograph on the Automated Planet Finder telescope. A combined analysis of these data reveal a planet radius of Rp=2.24+/-0.23R_{Earth}_ and a mass measurement of Mp=9.6+/-3.9M_{Earth}_). TOI-1437 b is one of few (~50) known transiting sub-Neptunes orbiting a solar-mass star that has a RV mass measurement. As the formation pathway of these worlds remains an unanswered question, the precise mass characterization of TOI-1437 b may provide further insight into this class of planet.2024AJ....168..135Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/168/135CatalogResearchIsServedByTAP VizieR generic servicerelated-toIV/34 : K2 Ecliptic Plane Input Catalog (EPIC) (Huber+, 2017)I/356 : Gaia DR3 Part 2. Extra-galactic (Gaia Collaboration, 2022)I/357 : Gaia DR3 Part 3. Non-single stars (Gaia Collaboration, 2022)I/358 : Gaia DR3 Part 4. Variability (Gaia Collaboration, 2022)I/359 : Gaia DR3 Part 5. Solar System (Gaia Collaboration, 2022)I/360 : Gaia DR3 Part 6. Performance verification (Gaia Collaboration, 2022)J/other/A+ARV/18.67 : Accurate masses and radii of normal stars (Torres+, 2010)J/ApJ/725/875 : Chromospheric activity for CPS stars (Isaacson+, 2010)J/AJ/142/19 : Speckle observations of KOI (Howell+, 2011)J/A+A/546/A10 : Mult. in transiting planet-host stars (Lillo-Box+, 2012)J/ApJ/767/95 : Stellar parameters of smallest KIC stars (Dressing+, 2013)J/A+A/566/A103 : Kepler planet host candidates imaging (Lillo-Box+, 2014)J/ApJ/809/8 : Terrestrial planet occurrence rates for KOIs (Burke+, 2015)J/ApJ/825/19 : Mass-radius relationship for planets, Rp<4 (Wolfgang+, 2016)J/AJ/152/180 : Bolometric fluxes of EBs in Tycho-2 (Stassun+, 2016)J/AJ/153/71 : Kepler follow-up observation program. I. (Furlan+, 2017)J/AJ/153/136 : Planets & host stars with Gaia parallaxes (Stassun+, 2017)J/AJ/154/109 : California-Kepler Survey (CKS). III. Radii (Fulton+, 2017)J/AJ/158/109 : Occurrence rates of planets orbiting FGK stars (Hsu+, 2019)J/AJ/159/19 : SOAR TESS survey. I. (Ziegler+, 2020)J/ApJS/250/20 : Rot. periods in TESS objects of interest (TOIs) (Canto+, 2020)J/ApJ/898/47 : Fe & radii from blended sp. of simulated bin. (Furlan+, 2020)J/AN/341/996 : Stellar companions of (C)TOIs (Mugrauer+, 2020)J/A+A/639/A35 : RV jitter & photometric var. correlation (Hojjatpanah+, 2020)J/ApJS/254/39 : Exoplanet candidates from TESS first 2yr obs (Guerrero+, 2021)J/AJ/162/75 : Speckle obs. TESS exoplanet host stars. II. (Lester+, 2021)J/AJ/166/33 : The TESS-Keck Survey. XV. 108 TESS Planets (MacDougall+, 2023)J/AJ/166/271 : FEROS spectra for 3 giants exoplanets (Eberhardt+, 2023)J/AJ/167/282 : TESS/HIRES RVel follow up of TOI-1824 (Lange+, 2024)J/A+A/686/A232 : AstraLux-TESS planet candidates (Lillo-Box+, 2024)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/168/135https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/168/135http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/168/135https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/168/135https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/168/135http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/168/135GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/AJ/168/135/table1Radial velocity measurementsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date; TDBdtime.epochdoubleRVel[-48/31] Relative radial velocitym/sphys.velocfloate_RVel[1.2/19] Uncertainty in RVelm/sstat.error;phys.velocfloatSHK[0.038/0.31] The S_HK_ Valuespect.indexfloate_SHK[0.001/0.002] Uncertainty in SHKstat.error;spect.indexfloatInstInstrument ("APF" or "HIRES")meta.id;instrchar