English
Related papers

Related papers: Two Jovian-Mass Planets in Earthlike Orbits

200 papers

We report the discovery of two planets transiting the bright stars HD 89345 (EPIC 248777106, $V=9.376$, $K=7.721$) in K2 Campaign 14 and HD 286123 (EPIC 247098361, $V=9.822$, $K=8.434$) in K2 Campaign 13. Both stars are G-type stars, one of…

For over 10 years, we have carried out a precise radial velocity (RV) survey to find substellar companions around evolved G,K-type stars to extend our knowledge of planet formation and evolution. We performed high precision RV measurements…

Solar and Stellar Astrophysics · Physics 2017-11-29 M. Yılmaz , B. Sato , I. Bikmaev , S. O. Selam , H. Izumiura , V. Keskin , E. Kambe , S. S. Melnikov , A. Galeev , İ. Özavcı , E. N. Irtuganov , R. Ya. Zhuchkov

We present here the discovery and characterisation of a very light planet around HD4308. The planet orbits its star in 15.56 days. The circular radial-velocity variation presents a tiny semi-amplitude of 4.1 m/s that corresponds to a…

Astrophysics · Physics 2009-11-11 S. Udry , M. Mayor , W. Benz , J. -L. Bertaux , F. Bouchy , C. Lovis , C. Mordasini , F. Pepe , D. Queloz , J. -P. Sivan

In this paper, we report a refined determination of the orbital parameters and the detection of the Rossiter-McLaughlin effect of the recently discovered transiting exoplanet HD147506b (HAT-P-2b). The large orbital eccentricity at the short…

We report the discovery of two hot Jupiters using photometry from Campaigns 4 and 5 of the two-wheeled Kepler (K2) mission. K2-30b has a mass of $ 0.65 \pm 0.14 M_J$, a radius of $1.070 \pm 0.018 R_J$ and transits its G dwarf ($T_{eff} =…

We present the discovery of two planets orbiting the nearby (D=11.9 pc) K7 dwarf Gl 414A. Gl 414A b is a sub-Neptune mass planet with M$_b \sin{i_b} = 9.28^{+3.19}_{-2.54}$ M$_\oplus$ and a semi-major axis of 0.24 $\pm$ 0.01 au. Gl 414A c…

We report the discovery of two super-Earth-sized planets transiting the bright (V = 8.94, K = 7.07) nearby late G-dwarf HD 3167, using data collected by the K2 mission. The inner planet, HD 3167 b, has a radius of 1.6 R_e and an ultra-short…

The mature Jovian planet $\varepsilon$ Eridani b orbits one of the closest sun-like stars at a moderate separation of 3.5 AU, presenting one of the best opportunities to image a true analog to a solar system planet. We perform a thorough…

Earth and Planetary Astrophysics · Physics 2025-10-10 William Thompson , Eric Nielsen , Jean-Baptiste Ruffio , Sarah Blunt , Christian Marois

We present observations of two new single-lined eclipsing binaries, both consisting of an Am star and an M-dwarf, discovered by the Wide Angle Search for Planets transit photometry survey. Using WASP photometry and spectroscopic…

We have detected low-amplitude radial-velocity variations in two stars, USNO-B1.0 1219-0005465 (GSC 02265-00107 = WASP-1) and USNO-B1.0 0964-0543604 (GSC 00522-01199 = WASP-2). Both stars were identified as being likely host stars of…

Two years ago a new benchmark for the planetary survey was set with the discoveries of three extrasolar planets with masses below 20$M_\oplus$. In particular, the serendipitous discovery of the 14$M_\oplus$ planet around $\mu$ Ara found…

We report the detection of two new planets orbiting the K giants HD 86950 and HD 222076, based on precise radial velocities obtained with three instruments: AAT/UCLES, FEROS, and CHIRON. HD 86950b has a period of 1270$\pm$57 days at…

Earth and Planetary Astrophysics · Physics 2017-01-18 Robert A. Wittenmyer , M. I. Jones , Jinglin Zhao , J. P. Marshall , R. P. Butler , C. G. Tinney , Liang Wang , John Asher Johnson

We report precise Doppler measurements of two evolved stars, kappa CrB (HD142091) and HD 167042, obtained at Lick Observatory as part of our search for planets orbiting intermediate-mass subgiants. Periodic variations in the radial…

We present the discovery of three new giant planets around three metal-deficient stars: HD5388b (1.96M_Jup), HD181720b (0.37M_Jup), and HD190984b (3.1M_Jup). All the planets have moderately eccentric orbits (ranging from 0.26 to 0.57) and…

Earth and Planetary Astrophysics · Physics 2015-05-14 N. C. Santos , M. Mayor , W. Benz , F. Bouchy , P. Figueira , G. Lo Curto , C. Lovis , C. Melo , C. Moutou , D. Naef , F. Pepe , D. Queloz , S. G. Sousa , S. Udry

The HR8799 planetary system with four ~10 mJup planets in wide orbits up to 70 au, and periods up to 500 yr has been detected with the direct imaging. Its intriguing orbital architecture is not fully resolved due to time-limited astrometry…

Earth and Planetary Astrophysics · Physics 2018-10-10 Krzysztof Gozdziewski , Cezary Migaszewski

Planets with radii between that of the Earth and Neptune (hereafter referred to as sub-Neptunes) are found in close-in orbits around more than half of all Sun-like stars. Yet, their composition, formation, and evolution remain poorly…

Earth and Planetary Astrophysics · Physics 2023-11-30 R. Luque , H. P. Osborn , A. Leleu , E. Pallé , A. Bonfanti , O. Barragán , T. G. Wilson , C. Broeg , A. Collier Cameron , M. Lendl , P. F. L. Maxted , Y. Alibert , D. Gandolfi , J. -B. Delisle , M. J. Hooton , J. A. Egger , G. Nowak , M. Lafarga , D. Rapetti , J. D. Twicken , J. C. Morales , I. Carleo , J. Orell-Miquel , V. Adibekyan , R. Alonso , A. Alqasim , P. J. Amado , D. R. Anderson , G. Anglada-Escudé , T. Bandy , T. Bárczy , D. Barrado Navascues , S. C. C. Barros , W. Baumjohann , D. Bayliss , J. L. Bean , M. Beck , T. Beck , W. Benz , N. Billot , X. Bonfils , L. Borsato , A. W. Boyle , A. Brandeker , E. M. Bryant , J. Cabrera , S. Carrazco Gaxiola , D. Charbonneau , S. Charnoz , D. R. Ciardi , W. D. Cochran , K. A. Collins , I. J. M. Crossfield , Sz. Csizmadia , P. E. Cubillos , F. Dai , M. B. Davies , H. J. Deeg , M. Deleuil , A. Deline , L. Delrez , O. D. S. Demangeon , B. -O. Demory , D. Ehrenreich , A. Erikson , E. Esparza-Borges , B. Falk , A. Fortier , L. Fossati , M. Fridlund , A. Fukui , J. Garcia-Mejia , S. Gill , M. Gillon , E. Goffo , Y. Gomez Maqueo Chew , M. Güdel , E. W. Guenther , M. N. Günther , A. P. Hatzes , Ch. Helling , K. M. Hesse , S. B. Howell , S. Hoyer , K. Ikuta , K. G. Isaak , J. M. Jenkins , T. Kagetani , L. L. Kiss , T. Kodama , J. Korth , K. W. F. Lam , J. Laskar , D. W. Latham , A. Lecavelier des Etangs , J. P. D. Leon , J. H. Livingston , D. Magrin , R. A. Matson , E. C. Matthews , C. Mordasini , M. Mori , M. Moyano , M. Munari , F. Murgas , N. Narita , V. Nascimbeni , G. Olofsson , H. L. M. Osborne , R. Ottensamer , I. Pagano , H. Parviainen , G. Peter , G. Piotto , D. Pollacco , D. Queloz , S. N. Quinn , A. Quirrenbach , R. Ragazzoni , N. Rando , F. Ratti , H. Rauer , S. Redfield , I. Ribas , G. R. Ricker , A. Rudat , L. Sabin , S. Salmon , N. C. Santos , G. Scandariato , N. Schanche , J. E. Schlieder , S. Seager , D. Ségransan , A. Shporer , A. E. Simon , A. M. S. Smith , S. G. Sousa , M. Stalport , Gy. M. Szabó , N. Thomas , A. Tuson , S. Udry , A. M. Vanderburg , V. Van Eylen , V. Van Grootel , J. Venturini , I. Walter , N. A. Walton , N. Watanabe , J. N. Winn , T. Zingales

We report on the detection of three Saturn-mass planets discovered with the HARPS instrument. HD 93083 shows radial-velocity (RV) variations best explained by the presence of a companion of 0.37 M_Jup orbiting in 143.6 days. HD 101930 b has…