J/AJ/166/32ivo://CDS.VizieR/J/AJ/166/32doi:10.26093/cds/vizier.51660032CDSHua X.Wang S.X.Teske J.K.Gan T.Shporer A.Zhou G.Stassun K.G.,Rabus M.Howell S.B.Ziegler C.Lissauer J.J.Winn J.N.Jenkins J.M.,Ting E.B.Collins K.A.Mann A.W.Zhu W.Wang SuButler R.P.,Crane J.D.Shectman S.A.Bouma L.G.Briceno C.Dragomir D.Fong W.,Law N.Medina J.V.Quinn S.N.Ricker G.R.Schwarz R.P.Seager S.,Sefako R.Stockdale C.Vanderspek R.Villasenor J.2024-11-06T20:18:39Z2024-02-23T07:53:59ZCDS support team

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

cds-question@unistra.frexoplanetsg-starsvisible-astronomyspectroscopyradial-velocityWe report the confirmation of a TESS-discovered transiting super-Earth planet orbiting a mid-G star, HD307842 (TOI-784). The planet has a period of 2.8days, and the radial velocity (RV) measurements constrain the mass to be 9.67_-0.82_^+0.83^M{Earth}. We also report the discovery of an additional planet candidate on an outer orbit that is most likely nontransiting. The possible periods of the planet candidate are approximately 20^-63^days, with the corresponding RV semiamplitudes expected to range from 3.2 to 5.4m/s and minimum masses from 12.6 to 31.1 M{Earth}. The radius of the transiting planet (planet b) is 1.93_-0.09_^+0.11^R{Earth}, which results in a mean density of 7.4_-1.2_^+1.4^g/cm^3^ suggesting that TOI-784b is likely to be a rocky planet though it has a comparable radius to a sub-Neptune. We found TOI-784 b is located at the lower edge of the so-called "radius valley" in the radius versus insolation plane, which is consistent with the photoevaporation or core-powered mass-loss prediction. The TESS data did not reveal any significant transit signal of the planet candidate, and our analysis shows that the orbital inclinations of planet b and the planet candidate are 88.60deg_-0.86_^+0.84^ and <~88deg^3^-89deg^2^, respectively. More RV observations are needed to determine the period and mass of the second object, and search for additional planets in this system.2023AJ....166...32Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/166/32CatalogResearchIsServedByTAP VizieR generic servicerelated-toVI/39 : Model Atmospheres (Kurucz, 1979)J/ApJ/687/1264 : Age estimation for solar-type dwarfs (Mamajek+, 2008)J/other/A+ARV/18.67 : Accurate masses and radii of normal stars (Torres+, 2010)J/AJ/142/19 : Speckle observations of KOI (Howell+, 2011)J/ApJS/197/8 : Kepler candidate multiple transiting planets (Lissauer+, 2011)J/other/Nat/486.375 : Stellar parameters of KOI stars (Buchhave+, 2012)J/ApJS/204/24 : Kepler planetary candidates. III. (Batalha+, 2013)J/A+A/564/A125 : AGN Torus model comparison of AGN in the CDFS (Buchner+, 2014)J/A+A/588/A38 : Light curves of spotted solar-type stars (Lehtinen+, 2016)J/AJ/152/180 : Bolometric flux eclipsing binaries in Tycho-2 (Stassun+, 2016)J/ApJ/825/19 : Mass-rad relationship for planets with Rp<4 (Wolfgang+, 2016)J/AJ/154/109 : California-Kepler Survey. III. Planet radii (Fulton+, 2017)J/AJ/153/136 : Planets & host stars with Gaia parallaxes (Stassun+, 2017)J/A+A/612/A95 : K2-141 b radial velocity and light curve (Barragan+, 2018)J/AJ/156/264 : California-Kepler Survey VII Planet radius gap (Fulton+, 2018)J/AJ/156/254 : California-Kepler Survey. VI (Weiss+, 2018)J/ApJ/875/29 : Spectroscopic analysis of the CKS sample. I. (Martinez+, 2019)J/AJ/159/211 : Exoplanets parameters from Kepler and K2 (Cloutier+, 2020)J/AJ/160/22 : TOI-1235 Radial velocities & opt spectros (Cloutier+, 2020)J/AJ/159/19 : SOAR TESS survey. I. (Ziegler+, 2020)J/ApJS/254/42 : Hipparcos-Gaia (EDR3) Catalog of Accelerations (Brandt, 2021)J/ApJS/254/39 : Exoplanet candidates from TESS first 2yr obs (Guerrero+, 2021)J/AJ/162/176 : The solar neighborhood. XLVIII. (Paredes+, 2021)J/ApJS/256/33 : Magellan-TESS Survey. I. Midsurvey results (Teske+, 2021)J/AJ/163/160 : Properties of 170 TOI hosts and companions (Behmard+, 2022)J/AJ/163/101 : TESS-Keck survey. IX. RVel of HD1919139 (Lubin+, 2022)J/other/Sci/377.1211 : RV and LC of 8 M dwarf stars with planets (Luque+, 2022)J/AJ/163/179 : The California-Kepler Survey. X. (Petigura+, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/166/32https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/166/32http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/166/32https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/166/32https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/166/32http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/166/32GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/AJ/166/32/table1Radial velocity measurementsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJD[2458909/2459664] Barycentric Julian Datedtime.epochdoubleRVel[-8.32/15786] Radial velocitym/sspect.dopplerVelocdoublee_RVel[0.6/27] Uncertainty in RVelm/sstat.error;spect.dopplerVelocfloatInstInstrument (1)meta.id;instrchar