J/AJ/163/121ivo://CDS.VizieR/J/AJ/163/121doi:10.26093/cds/vizier.51630121CDSBouma L.G.Curtis J.L.Masuda K.Hillenbrand L.A.Stefansson G.,Isaacson H.Narita N.Fukui A.Ikoma M.Tamura M.Kraus A.L.,Furlan E.Gnilka C.L.Lester K.V.Howell S.B.2022-09-30T22:23:30Z2022-05-24T07:12:10ZCDS support team

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

cds-question@unistra.frexoplanetsg-starsinfrared-photometryvisible-astronomybroad-band-photometryspectroscopyradial-velocityKepler1627A is a G8V star previously known to host a 3.8R{Earth} planet on a 7.2day orbit. The star was observed by the Kepler space telescope because it is nearby (d=329pc) and it resembles the Sun. Here, we show using Gaia kinematics, TESS stellar rotation periods, and spectroscopic lithium abundances that Kepler1627 is a member of the 38_-5_^+6^Myr old {delta}Lyr cluster. To our knowledge, this makes Kepler1627Ab the youngest planet with a precise age yet found by the prime Kepler mission. The Kepler photometry shows two peculiarities: the average transit profile is asymmetric, and the individual transit times might be correlated with the local light- curve slope. We discuss possible explanations for each anomaly. More importantly, the {delta}Lyr cluster is one of ~103 coeval groups whose properties have been clarified by Gaia. Many other exoplanet hosts are candidate members of these clusters; their ages can be verified with the trifecta of Gaia, TESS, and ground-based spectroscopy.2022AJ....163..121Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/163/121CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/simbad : Simbad objects catalogue (M.Wenger 2000)I/345 : Gaia DR2 (Gaia Collaboration, 2018)IV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)J/other/A+ARV/17.251 : Stars observed with Doppler imaging (Strassmeier, 2009)J/ApJ/725/331 : Astrometry in the Galactic Center (Yelda+, 2010)J/A+A/529/A75 : Limb-darkening coefficients (Claret+, 2011)J/AJ/142/19 : Speckle observations of KOI (Howell+, 2011)J/ApJ/733/L9 : Stellar rotation for 71 NGC 6811 members (Meibom+, 2011)J/A+A/545/A55 : Extrasolar planets. Radial velocities 5 stars (Boisse+, 2012)J/ApJS/199/24 : The first three quarters of Kepler mission (Tenenbaum+, 2012)J/A+A/558/A53 : Milky Way global survey star clusters. II. (Kharchenko+, 2013)J/ApJS/208/9 : Intrinsic colors and temperatures of PMS stars (Pecaut+, 2013)J/MNRAS/436/1883 : Properties of KOI host stars (Walkowicz+, 2013)J/A+A/564/A79 : Proper motions of open clusters from UCAC4 (Dias+, 2014)J/AJ/147/146 : Spectroscopy of Tuc-Hor candidate members (Kraus+, 2014)J/ApJS/211/24 : Rotation periods of Kepler MS stars (McQuillan+, 2014)J/ApJ/804/146 : Atmospheric parameters for nearby B-F stars (David+, 2015)J/ApJ/807/170 : Prograde vs retrogade motions. II. KOIs (Holczer+, 2015)J/ApJS/225/15 : IR excess stars from Tycho-2 and AllWISE (Cotten+, 2016)J/ApJ/829/23 : Stellar flares from Q0-Q17 Kepler LCs (Davenport, 2016)J/ApJS/225/9 : Kepler TTVs. IX. Full long-cadence data set (Holczer+, 2016)J/AJ/152/8 : Impact stellar multip. on planetary systems I. (Kraus+, 2016)J/ApJ/822/86 : False positive proba. for Q1-Q17 DR24 KOIs (Morton+, 2016)J/MNRAS/461/794 : Scorpius-Centaurus K-Type Stars (Pecaut+, 2016)J/AJ/152/113 : Pleiades members K2 light curves. I. Periods (Rebull+, 2016)J/AJ/152/115 : Pleiades members K2 light curves. III. (Stauffer+, 2016)J/ApJ/842/83 : Praesepe members rotational periods K2 LCs (Douglas+, 2017)J/AJ/154/109 : California-Kepler Survey. III. Planet radii (Fulton+, 2017)J/ApJ/851/116 : Long-term variability of Kepler sun-like stars (Montet+, 2017)J/AJ/153/257 : Comoving stars in Gaia DR1 (Oh+, 2017)J/AJ/154/224 : Transiting planets in young clusters from K2 (Rizzuto+, 2017)J/ApJ/836/77 : Library of high-S/N optical spectra of FGKM stars (Yee+, 2017)J/AJ/154/107 : California-Kepler Survey. I. 1305 stars (Petigura+, 2017)J/ApJ/855/115 : Lithium abundances of KOIs from CKS spectra (Berger+, 2018)J/ApJ/866/99 : Revised radii KIC stars & planet using GaiaDR2 (Berger+, 2018)J/A+A/618/A93 : Gaia DR2 open clusters in the Milky Way (Cantat-Gaudin+, 2018)J/AJ/155/177 : Obliquities planetary & eclipsing binary systems (Dai+, 2018)J/ApJ/862/138 : BANYAN. XIII. Nearby young assoc. with Gaia DR2 (Gagne+, 2018)J/ApJ/860/43 : BANYAN. XII. New members from Gaia-Tycho data (Gagne+, 2018)J/ApJ/856/23 : BANYAN. XI. The BANYAN {Sigma} algorithm (Gagne+, 2018)J/A+A/616/A10 : 46 openclusters GaiaDR2 HR diagrams (Gaia Collaboration, 2018)J/ApJ/868/32 : Large moving group within the LCC association (Goldman+, 2018)J/AJ/156/84 : APOGEE-2 survey of Orion Complex. II. (Kounkel+, 2018)J/A+A/612/A99 : Gaia-ESO Survey in 7 open star cluster fields (Randich+, 2018)J/ApJS/235/38 : Kepler planetary cand VIII. DR25 reliability (Thompson+, 2018)J/A+A/620/A172 : Solar neighbourhood young stars 3D mapping (Zari+, 2018)J/A+A/623/A108 : Age of 269 GDR2 open clusters (Bossini+, 2019)J/ApJS/245/13 : CDIPS. I. LCs from TESS sectors 6 and 7 (Bouma+, 2019)J/A+A/626/A17 : Young population in Vela-Puppis region (Cantat-Gaudin+, 2019)J/A+A/623/A112 : The Sco OB2 population from Gaia DR2 data (Damiani+, 2019)J/AJ/158/54 : Taurus members from stellar to planetary mass (Esplin+, 2019)J/A+A/624/L11 : Coma Berenices neighbor moving group (Fuernkranz+, 2019)J/AJ/158/122 : Local structure & star formation history of MW (Kounkel+,2019)J/A+A/624/L11 : Coma Berenices neighbor moving group (Fuernkranz+, 2019)J/AJ/160/239 : Cluster difference imaging photo. survey. II. (Bouma+, 2020)J/A+A/633/A99 : Gaia DR2 open clusters in Milky Way. II (Cantat-Gaudin+, 2020)J/A+A/640/A1 : Portrait Galactic disc (Cantat-Gaudin+, 2020)J/A+A/635/A45 : 570 new open clusters in Galactic disc (Castro-Ginard+, 2020)J/ApJ/903/96 : MUTA; the {mu}Tau Association (Gagne+, 2020)J/ApJ/903/96 : MUTA; the {mu}Tau Association (Gagne+, 2020)J/AJ/159/60 : 8695 flares 1228 stars in TESS sectors 1 & 2 (Gunther+, 2020)J/AJ/160/279 : Untangling Galaxy. II. Structure within 3kpc (Kounkel+, 2020)J/ApJ/893/67 : Smoothed amplitudes from Kepler, K2 & TESS phot (Morris, 2020)J/A+A/639/A64 : Extended Meingast 1 source catalogue (Ratzenboeck+, 2020)J/A+A/635/A43 : Stellar rotation periods K2 Campaigns 0-18 (Reinhold+, 2020)J/A+A/638/A85 : 3D view of Taurus with Gaia & Herschel (Roccatagliata+, 2020)J/A+A/638/A9 : A census of the near-by Psc-Eri stellar stream (Roeser+, 2020)J/AJ/160/192 : Photometry and RVs of K2-25b with HPF (Stefansson+, 2020)J/ApJ/904/196 : Stellar parameters of a Young Stellar Snake (Tian, 2020)J/AJ/159/166 : Membership & properties of moving groups Gaia (Ujjwal+, 2020)J/AJ/159/278 : He-filter obs. of WASP-69b & WASP-52b (Vissapragada+, 2020)J/AJ/162/197 : Photometry, rotation & Li open cluster NCG2516 (Bouma+, 2021)J/AJ/161/265 : Compared rotation periods 1189 CKS host stars (David+, 2021)J/A+A/649/A6 : Gaia Catalogue of Nearby Stars (Gaia collaboration, 2021)J/ApJS/254/39 : Exoplanet candidates from TESS first 2yr obs (Guerrero+, 2021)J/A+A/645/A42 : Flares in 5 open clusters (Ilin+, 2021)J/A+A/645/A84 : Coronae of nearby star clusters (Meingast+, 2021)J/AJ/161/171 : THYME. V. Discovering stellar association (Tofflemire+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/163/121https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/163/121http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/163/121https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/163/121https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/163/121http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/163/121GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/AJ/163/121/table5MuSCAT3 photometry of Kepler 1627recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJD[2459433/2459435] Barycentric Julian Date; TDBdtime.epochdoubleFlux[0.99/1.01] Relative flux in Filterphot.flux;arith.ratiodoublee_Flux[0.0009/0.002] Uncertainty in fluxstat.error;phot.fluxdoubleFiltFilter used; g, r, i, or zinstr.setup;instr.filtercharJ/AJ/163/121/table6Kepler 1627 radial velocitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJD[2459433/2459435] Barycentric Julian Date; TDBdtime.epochdoubleRVel[-149/153] Radial velocitym/sphys.veloc;pos.heliocentricfloate_RVel[11/15] Uncertainty in RVelm/sstat.error;spect.dopplerVelocfloatS-Value[0.64/0.75] Ca H & K line S-Value indexmeta.code;spect.indexfloat