J/AJ/165/207ivo://CDS.VizieR/J/AJ/165/207CDSClark J.T.Addison B.C.Okumura J.Vach S.Errico A.Heitzmann A.,Rodriguez J.E.Wright D.J.Clerte M.Brown C.J.Fetherolf T.,Wittenmyer R.A.Plavchan P.Kane S.R.Horner J.Kielkopf J.F.,Shporer A.Tinney C.G.Hui-Gen L.Ballard S.Bowler B.P.Mengel M.W.,Zhou G.Lee A.S.David A.Heim J.Lee M.E.Sevilla V.Zafar N.E.,Hinkel N.R.Allen B.E.Bayliss D.Berberyan A.Berlind P.Bieryla A.,Bouchy F.Brahm R.Bryant E.M.Christiansen J.L.Ciardi D.R.,Ciardi K.N.Collins K.A.Dallant J.Davis A.B.Diaz M.R.,Dressing C.D.Esquerdo G.A.Harre J.-V.Howell S.B.Jenkins J.M.,Jensen E.L.N.Jones M.I.Jordan A.Latham D.W.Lund M.B.McCormac J.,Nielsen L.D.Otegi J.Quinn S.N.Radford D.J.Ricker G.R.,Schwarz R.P.Seager S.Smith A.M.S.Stockdale C.Tan T.-G.Udry S.,Vanderspek R.Gunther M.N.Wang S.Wingham G.Winn J.N.2023-10-25T08:11:13Z2023-10-13T07:30:31ZCDS support team

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

cds-question@unistra.frexoplanetsf-starsvisible-astronomyspectroscopyphotometryradial-velocityNASA's Transiting Exoplanet Survey Satellite (TESS) mission has been uncovering a growing number of exoplanets orbiting nearby, bright stars. Most exoplanets that have been discovered by TESS orbit narrow-line, slow-rotating stars, facilitating the confirmation and mass determination of these worlds. We present the discovery of a hot Jupiter orbiting a rapidly rotating (vsini=35.1{+/-}1.0km/s) early F3V-dwarf, HD115447 (TOI-778). The transit signal taken from Sectors 10 and 37 of TESS's initial detection of the exoplanet is combined with follow-up ground-based photometry and velocity measurements taken from Minerva-Australis, TRES, CORALIE, and CHIRON to confirm and characterize TOI-778b. A joint analysis of the light curves and the radial velocity measurements yields a mass, a radius, and an orbital period for TOI-778b of 2.76_-0.23_^+0.24^MJup, 1.370{+/-}0.043RJup, and ~4.63days, respectively. The planet orbits a bright (V=9.1mag) F3-dwarf with M=1.40{+/-}0.05M{sun}, R=1.70{+/-}0.05R{sun}, and logg=4.05{+/-}0.17. We observed a spectroscopic transit of TOI-778b, which allowed us to derive a sky-projected spin-orbit angle of 18{+/-}11deg, consistent with an aligned planetary system. This discovery demonstrates the capability of smaller-aperture telescopes such as Minerva-Australis to detect the radial velocity signals produced by planets orbiting broad-line, rapidly rotating stars.2023AJ....165..207Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/165/207CatalogResearchIsServedByTAP VizieR generic servicerelated-toIII/135 : Henry Draper Catalogue and Extension (Cannon+ 1918-1924; ADC 1989)I/259 : The Tycho-2 Catalogue (Hog+ 2000)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)I/337 : Gaia DR1 (Gaia Collaboration, 2016)I/345 : Gaia DR2 (Gaia Collaboration, 2018)IV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)J/ApJ/720/1118 : i-band photometry of HAT-P-16 (Buchhave+, 2010)J/A+A/529/A75 : Limb-darkening coefficients (Claret+, 2011)J/AJ/142/19 : Speckle observations of KOI (Howell+, 2011)J/ApJ/757/18 : Radial velocities 16 hot Jupiter host stars (Albrecht+, 2012)J/ApJS/208/9 : Intrinsic colors and temperatures of PMS stars (Pecaut+, 2013)J/AJ/153/71 : Kepler followup observation program I. Imaging (Furlan+, 2017)J/MNRAS/480/2846 : 95 RV-discovered single-planet systems (Boisvert+, 2018)J/AJ/157/192 : Radial velocities and transit times for KOI 4 (Chontos+, 2019)J/AJ/158/227 : Asteroseismic parameters of RGB stars (Grunblatt+, 2019)J/AJ/157/31 : Differential photometry & RVel of HATS-70 (Zhou+, 2019)J/AJ/158/141 : Differential photometry & RVs of HATP69 & HATP70 (Zhou+, 2019)J/AJ/159/145 : RVs & opt. photometry of the host star TOI-677 (Jordan+, 2020)J/AJ/162/292 : RVel and transit photometry of TOI-1431 (Addison+, 2021)J/AJ/162/176 : The solar neighborhood. XLVIII. (Paredes+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/165/207https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/165/207http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/165/207https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/165/207https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/165/207http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/165/207GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/AJ/165/207/table1Radial velocities for TOI-778recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJD[2458647/2459006] Barycentric Julian Datedtime.epochdoubleRVel[-7318/688] Radial velocitym/sspect.dopplerVelocinte_RVel[56/430] Uncertainty in RVelm/sstat.error;spect.dopplerVelocintSNR[5/79] Signal-to-Noisestat.snrintInstInstrument (1)meta.id;instrcharJ/AJ/165/207/fig1Full TESS PDCSAP median corrected light curves for TOI-778 from Sector 10 and Sector 37recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSectorTESS sector number; 10 or 37obs.fieldintPartPart in Figure 1; either 1 or 2meta.bib.figintBJD[2458571/2459333] Barycentric Julian Datedtime.epochdoubleindexedFlux[0.99/1.01] Relative fluxphot.flux;em.opt;arith.ratiodoublee_Flux[0.0005/0.0007] Uncertainty in Fluxstat.error;phot.fluxdoubleJ/AJ/165/207/fig6Light curve for TOI-778b from the ground-based observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintInstFacility identifier (1)meta.id;meta.maincharBJD[2458657/2459006] Barycentric Julian Datedtime.epochdoubleFlux[0.97/1.03] Relative fluxphot.flux;em.opt;arith.ratiodoublee_Flux[0.0008/0.009] Uncertainty in Fluxstat.error;phot.fluxdouble