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Using the EVEREST photometry pipeline, we have identified 74 candidate ultra-short-period planets (orbital period P<1 d) in the first half of the K2 data (Campaigns 0-8 and 10). Of these, 33 candidates have not previously been reported. A…

Recently K2 and TESS have discovered transiting planets with radii between $\sim$ 5-10 R$_\oplus$ around stars with ages $<100$ Myr. These young planets are likely to be the progenitors of the ubiquitous super-earths/sub-neptunes, that are…

Earth and Planetary Astrophysics · Physics 2020-10-07 James E. Owen

We report the discovery of three moderately high-mass transiting hot Jupiters from the HATSouth survey: HATS-22b, HATS-23b and HATS-24b. These planets add to the numbers of known planets in the ~2MJ regime. HATS-22b is a 2.74+/-0.11 MJ mass…

We report the detection of a transiting Jupiter-sized planet orbiting a relatively bright (V=11.79) K0V star. We detected the transit light-curve signature in the course of the TrES multi-site transiting planet survey, and confirmed the…

We announce the discovery of the transiting planet CoRoT-13b. Ground based follow-up in CFHT and IAC80 confirmed CoRoT's observations. The mass of the planet was measured with the HARPS spectrograph and the properties of the host star were…

We announce the discovery of a planetary system with 7 transiting planets around a Kepler target, a current record for transiting systems. Planets b, c, e and f are reported for the first time in this work. Planets d, g and h were…

Earth and Planetary Astrophysics · Physics 2015-06-17 J. Cabrera , Sz. Csizmadia , H. Lehmann , R. Dvorak , D. Gandolfi , H. Rauer , A. Erikson , C. Dreyer , Ph. Eigmueller , A. Hatzes

We report the discovery of a second planet orbiting the K giant star 7 CMa based on 166 high-precision radial velocities obtained with Lick, HARPS, UCLES and SONG. The periodogram analysis reveals two periodic signals of approximately 745…

Earth and Planetary Astrophysics · Physics 2019-11-06 R. Luque , T. Trifonov , S. Reffert , A. Quirrenbach , M. H. Lee , S. Albrecht , M. Fredslund Andersen , V. Antoci , F. Grundahl , C. Schwab , V. Wolthoff

We report the discovery of a young, 0.16" binary, 2M2234+4041AB, found as the result of a Keck laser guide star adaptive optics imaging survey of young field ultracool dwarfs. Spatially resolved near-infrared photometry and spectroscopy…

Young planets provide a window into the early stages and evolution of planetary systems. Ideal planets for such research are in coeval associations, where the parent population can precisely determine their ages. We describe a young…

We present the discovery and characterization of a giant planet orbiting the young Sun-like star Kepler-63 (KOI-63, $m_{\rm Kp} = 11.6$, $T_{\rm eff} = 5576$ K, $M_\star = 0.98\, M_\odot$). The planet transits every 9.43 days, with apparent…

We report the Transiting Exoplanet Survey Satellite (TESS) discovery of three terrestrial-sized planets transiting L 98-59 (TOI-175, TIC 307210830) -- a bright M dwarf at a distance of 10.6 pc. Using the Gaia-measured distance and…

Earth and Planetary Astrophysics · Physics 2019-07-10 Veselin B. Kostov , Joshua E. Schlieder , Thomas Barclay , Elisa V. Quintana , Knicole D. Colon , Jonathan Brande , Karen A. Collins , Adina D. Feinstein , Samuel Hadden , Stephen R. Kane , Laura Kreidberg , Ethan Kruse , Christopher Lam , Elisabeth Matthews , Benjamin T. Montet , Francisco J. Pozuelos , Keivan G. Stassun , Jennifer G. Winters , George Ricker , Roland Vanderspek , David Latham , Sara Seager , Joshua Winn , Jon M. Jenkins , Dennis Afanasev , James J. D. Armstrong , Giada Arney , Patricia Boyd , Geert Barentsen , Khalid Barkaoui , Natalie E. Batalha , Charles Beichman , Daniel Bayliss , Christopher Burke , Artem Burdanov , Luca Cacciapuoti , Andrew Carson , David Charbonneau , Jessie Christiansen , David Ciardi , Mark Clampin , Kevin I. Collins , Dennis M. Conti , Jeffrey Coughlin , Giovanni Covone , Ian Crossfield , Laetitia Delrez , Shawn Domagal-Goldman , Courtney Dressing , Elsa Ducrot , Zahra Essack , Mark E. Everett , Thomas Fauchez , Daniel Foreman-Mackey , Tianjun Gan , Emily Gilbert , Michael Gillon , Erica Gonzales , Aaron Hamann , Christina Hedges , Hannah Hocutt , Kelsey Hoffman , Elliott P. Horch , Keith Horne , Steve Howell , Shane Hynes , Michael Ireland , Jonathan M. Irwin , Giovanni Isopi , Eric L. N. Jensen , Emmanuel Jehin , Lisa Kaltenegger , John F. Kielkopf , Ravi Kopparapu , Nikole Lewis , Eric Lopez , Jack J. Lissauer , Andrew W. Mann , Franco Mallia , Avi Mandell , Rachel A. Matson , Tsevi Mazeh , Teresa Monsue , Sarah E. Moran , Vickie Moran , Caroline V. Morley , Brett Morris , Philip Muirhead , Koji Mukai , Susan Mullally , Fergal Mullally , Catriona Murray , Norio Narita , EnricP alle , Daria Pidhorodetska , David Quinn , Howard Relles , Stephen Rinehart , Matthew Ritsko , Joseph E. Rodriguez , Pamela Rowden , Jason F. Rowe , Daniel Sebastian , Ramotholo Sefako , Sahar Shahaf , Avi Shporer , Naylynn Tanon Reyes , Peter Tenenbaum , Eric B. Ting , Joseph D. Twicken , Gerard T. van Belle , Laura Vega , Jeffrey Volosin , Lucianne M. Walkowicz , Allison Youngblood

We present four new transits of the planetary system TrES-3 observed between 2009 May and 2010 June. Among these, the third transit by itself indicates possible evidence for brightness disturbance, which might be the result of the planet…

Earth and Planetary Astrophysics · Physics 2015-05-20 Jae Woo Lee , Jae-Hyuck Youn , Seung-Lee Kim , Chung-Uk Lee , Jae-Rim Koo

While following up L dwarf candidates selected photometrically from the Two Micron All Sky Survey, we uncovered an unusual object designated 2MASS J01415823-4633574. Its optical spectrum exhibits very strong bands of vanadium oxide but…

We report the discovery of two hot Jupiters orbiting the stars EPIC229426032 and EPIC246067459. We used photometric data from Campaign 11 and 12 of the Kepler K2 Mission and radial velocity data obtained using the HARPS, FEROS, and CORALIE…

This paper reports on the validation and mass measurement of K2-263b, a sub-Neptune orbiting a quiet G9V star. Using K2 data from campaigns C5 and C16, we find this planet to have a period of $50.818947\pm 0.000094$ days and a radius of…

KIC10001893 is one out of 19 subdwarf-B (sdB) pulsators observed by the Kepler spacecraft in its primary mission. In addition to tens of pulsation frequencies in the g-mode domain, its Fourier spectrum shows three weak peaks at very low…

Earth and Planetary Astrophysics · Physics 2014-11-05 R. Silvotti , S. Charpinet , E. Green , G. Fontaine , J. H. Telting , R. H. Ostensen , V. Van Grootel , A. S. Baran , S. Schuh , L. Fox Machado

We report the discovery of a multi-planet system orbiting HD 106315, a rapidly rotating mid F-type star, using data from the K2 mission. HD 106315 hosts a $2.51\pm0.12\,R_\oplus$ sub-Neptune in a 9.5 day orbit, and a…

This paper reports on the detection of a planetary system with three Super-Earths orbiting HD40307. HD40307 is a K2V metal-deficient star at a distance of only 13 parsec, part of the HARPS GTO high-precision planet-search programme. The…

Astrophysics · Physics 2009-11-13 M. Mayor , S. Udry , C. Lovis , F. Pepe , D. Queloz , W. Benz , J. -L. Bertaux , F. Bouchy , C. Mordasini , D. Segransan
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