J/AJ/168/235ivo://CDS.VizieR/J/AJ/168/235doi:10.26093/cds/vizier.51680235CDSKanodia S.Gupta A.F.Canas C.I.Bernabo L.M.Reji V.Han Te,Brady M.Seifahrt A.Cochran W.D.Morrell N.Basant R.Bean J.,Bender C.F.de Beurs Z.L.Bieryla A.Birkholz A.Brown N.Chapman F.,Ciardi D.R.Clark C.A.Cotter E.G.Diddams S.A.Halverson S.,Hawley S.Hebb L.Holcomb R.Howell S.B.Kobulnicky H.A.,Kowalski A.F.Larsen A.Libby-Roberts J.Lin A.S.J.Lund M.B.,Luque R.Monson A.Ninan J.P.Parker B.A.Patel N.Rodruck M.,Ross G.Roy A.Schwab C.Stefansson G.Thoms A.Vanderburg A.2026-04-20T12:09:14Z2025-07-17T13:16:33ZCDS support team

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

cds-question@unistra.frexoplanetsradial-velocitydwarf-starsm-starsinfrared-astronomyspectroscopyvisible-astronomyphotometryTransiting giant exoplanets around M-dwarf stars (GEMS) are rare, owing to the low-mass host stars. However, the all-sky coverage of TESS has enabled the detection of an increasingly large number of them to enable statistical surveys like the Searching for GEMS survey. As part of this endeavor, we describe the observations of six transiting giant planets, which include precise mass measurements for two GEMS (K2-419Ab, TOI-6034b) and statistical validation for four systems, which includes validation and mass upper limits for three of them (TOI-5218b, TOI-5616b, TOI-5634Ab), while the fourth one--TOI-5414b is classified as a "likely planet." Our observations include radial velocities from the Habitable-zone Planet Finder on the Hobby-Eberly Telescope, and MAROON-X on Gemini-North, along with photometry and high-contrast imaging from multiple ground-based facilities. In addition to TESS photometry, K2-419Ab was also observed and statistically validated as part of the K2 mission in Campaigns 5 and 18, which provide precise orbital and planetary constraints despite the faint host star and long orbital period of ~20.4d. With an equilibrium temperature of only 380K, K2-419Ab is one of the coolest known well-characterized transiting planets. TOI-6034 has a late F-type companion about 40" away, making it the first GEMS host star to have an earlier main-sequence binary companion. These confirmations add to the existing small sample of confirmed transiting GEMS.2024AJ....168..235Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/168/235CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/352 : Dist. to 1.47 billion stars in Gaia EDR3 (Bailer-Jones+, 2021)I/357 : Gaia DR3 Part 3. Non-single stars (Gaia Collaboration, 2022)IV/39 : TESS Input Catalog version 8.2 (TIC v8.2) (Paegert+, 2021)IV/34 : K2 Ecliptic Plane Input Catalog (EPIC) (Huber+, 2017)J/AJ/142/19 : Speckle observations of KOI (Howell+, 2011)J/ApJS/200/15 : HARPS-TERRA project. I. (Anglada-Escude+, 2012)J/AJ/152/108 : i filter phot. for HATS-25 through HATS-30 (Espinoza+, 2016)J/ApJS/222/14 : Planetary candidates from 1st yr K2 mission (Vanderburg+, 2016)J/AJ/154/207 : K2 planetary systems orbiting low-mass stars (Dressing+, 2017)J/AJ/153/71 : Kepler follow-up obs program. I. Imaging (Furlan+, 2017)J/ApJ/836/77 : A library of high-S/N optical spect. of FGKM stars (Yee+, 2017)J/ApJ/856/23 : BANYAN. XI. The BANYAN {Sigma} algorithm (Gagne+, 2018)J/AJ/156/277 : 60 validated planets from K2 campaigns 5-8 (Livingston+, 2018)J/AJ/155/21 : Planet candidates from K2 campaigns 5-8 (Petigura+, 2018)J/AJ/156/102 : TESS Input Catalog and Candidate Target List (Stassun+, 2018)J/AJ/159/100 : Flux & RVs of the dwarf G9-40 with K2 & HPF (Stefansson+, 2020)J/AJ/161/24 : TRICERATOPS predictions for 384 TOIs (Giacalone+, 2021)J/AJ/163/125 : Light curve & RV of 4 giants planets (Jordan+, 2022)J/ApJS/259/33 : Faint-star TOIs from the TESS Primary Mission (Kunimoto+, 2022)J/AJ/164/70 : TESS Grand Unified Hot Jupiter Survey I.10 planets (Yee+, 2022)J/AJ/165/120 : SDSS g and i'-band light curve of TOI-5205 (Kanodia+, 2023)J/AJ/166/90 : Light curves and radial velocities for TOI-1899 (Lin+, 2023)J/other/Sci/382.1031 : LHS 3154 RV and activity indicators (Stefansson+, 2023)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/168/235https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/168/235http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/168/235https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/168/235https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/168/235http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/168/235GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/168/235/stars (List of targets (Table added by CDS))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/168/235/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/168/235/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/168/235/stars?GETtext/xml+votable180.050000true135.019808913.27382250.0055555555555555566/4303 6302 10981 16083 16132 28276https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/168/235?format=asciiOpticalInfrareddefaultJ/AJ/168/235/starsList of targets (Table added by CDS)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTOIIdentifier used in Table 1meta.id;meta.mainintIDIdentifier used in Table 2meta.idcharPerOrbital perioddtime.periodfloatNobsNumber of observations for target's photometry (link to Table photobs)meta.numberintnullableNfNumber of flux measurements for this target (link to Table 1)meta.numberintnullableNrvNumber of radial velocity measurements for this target (link to Table 2)meta.numberintnullableSpInteractive spectrum plotmeta.ref.urlcharRVInteractive velocity plotmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/AJ/168/235/photobsSummary of photometric observations per system and instrument (Table added by CDS)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTOITESS Object of Interest identifiermeta.id;meta.mainintPerOrbital Perioddtime.periodfloatInstInstrument used (1)meta.id;instrcharBJDfDate of first observation; Barycentric Julian Datedtime.epochdoubleBJDlDate of last observation; Barycentric Julian Datedtime.epochdoubleGP-PSimultaneous Gaussian Process detrending performed with the RotationTerm (Prot) kernel?meta.codecharGP-SSimultaneous Gaussian Process detrending performed with the Simple Harmonic Oscillator (SHO) kernel?meta.codecharGP-MasGaussian Process fit to the transit masked light curve and subsequently subtracted?meta.codecharGP-SubGaussian Process fit on the transit-masked light curve subtracted from the Flux to detrend it?meta.codecharDilDilution allowed to float and transit depth constrained?meta.codecharNfNumber of flux measurements for this target and instrument (link to Table 1)meta.numberintnullableSpInteractive spectrum plotmeta.ref.urlcharJ/AJ/168/235/table1Ground- and space-based photometric follow-up dataGP-SSimultaneous Gaussian Process detrending performed with the Simple Harmonic Oscillator (SHO) kernel?meta.codecharGP-MasGaussian Process fit to the transit masked light curve and subsequently subtracted?meta.codecharGP-SubGaussian Process fit on the transit-masked light curve subtracted from the Flux to detrend it?meta.codecharDilDilution allowed to float and transit depth constrained?meta.codecharMaskMask +/- 0.25 days around each transitmeta.codecharBJDTime axis, BJDTDBdtime.epochdoubleindexedFlux[-1/0.3] Flux, not median normalizedphot.fluxdoublee_Flux[2e-4/0.3] Flux errorstat.error;phot.fluxdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTOITESS Object of Interest identifiermeta.id;meta.mainintindexedInstInstrument (1)meta.id;instrcharindexedGP-PSimultaneous Gaussian Process detrending performed with the RotationTerm (Prot) kernel?meta.codecharJ/AJ/168/235/table2Radial velocities for the TOIs included in this paperrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTOITESS Object of Interest identifier; used in Table 1 (column added by CDS)meta.id;meta.mainintIDSystem identifiermeta.idcharBJDBarycentric Julian date, mid-observation at TDBdtime.epochdoubleRVel[-997/426] Radial Velocity for System at BJDm/sspect.dopplerVelocfloate_RVel[5.5/357] Uncertainty in RVelm/sstat.error;spect.dopplerVelocfloatInstInstrument used (1)meta.id;instrchar