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We announce confirmation of Kepler-418b, one of two proposed planets in this system. This is the first confirmation of an exoplanet based primarily on the transit color signature technique. We used the Kepler public data archive combined…

Earth and Planetary Astrophysics · Physics 2014-05-23 B. Tingley , H. Parviainen , D. Gandolfi , H. J. Deeg , E. Pallé , P. Montañés Rodriguez , F. Murgas , R. Alonso , H. Bruntt , M. Fridlund

The atmospheres of close-in planets are strongly influenced by mass loss driven by the high-energy (X-ray and extreme ultraviolet, EUV) irradiation of the host star, particularly during the early stages of evolution. We recently developed a…

Earth and Planetary Astrophysics · Physics 2020-01-08 D. Kubyshkina , L. Fossati , A. J. Mustill , P. E. Cubillos , M. B. Davies , N. V. Erkaev , C. P. Johnstone , K. G. Kislyakova , H. Lammer , M. Lendl , P. Odert

The mid-transit times of an exoplanet may be non-periodic. The variations in the timing of the transits with respect to a single period, that is, the transit timing variations (TTVs), can sometimes be attributed to perturbations by other…

Earth and Planetary Astrophysics · Physics 2018-12-05 D. D. Carpintero , M. D. Melita

The newly detected TRAPPIST-1 system, with seven low-mass, roughly Earth-sized planets transiting a nearby ultra-cool dwarf, is one of the most important exoplanet discoveries to date. The short baseline of the available discovery…

Earth and Planetary Astrophysics · Physics 2017-04-17 Songhu Wang , Dong-Hong Wu , Thomas Barclay , Gregory P. Laughlin

The direct detection of new extrasolar planets from high-precision photometry data is commonly based on the observation of the transit signal of the planet as it passes in front of its star. Close-in planets, however, leave additional…

Earth and Planetary Astrophysics · Physics 2021-10-04 J. Lillo-Box , S. Millholland , G. Laughlin

CoRoT-9b is one of the rare long-period (P=95.3 days) transiting giant planets with a measured mass known to date. We present a new analysis of the CoRoT-9 system based on five years of radial-velocity (RV) monitoring with HARPS and three…

Transit timing variations of Kepler-410Ab were already reported in a few papers. Their semi-amplitude is about 14.5 minutes. In our previous paper, we found that the transit timing variations could be caused by the presence of a stellar…

We extract Transit Timing Variation (TTV) signals for 12 pairs of transiting planet candidates that are near first-order Mean Motion Resonances (MMR), using publicly available Kepler light curves (Q0-Q14). These pairs show significant…

Earth and Planetary Astrophysics · Physics 2015-06-11 Ji-Wei Xie

We confirm and characterize the exoplanetary systems Kepler-445 and Kepler-446: two mid-M dwarf stars, each with multiple, small, short-period transiting planets. Kepler-445 is a metal-rich ([Fe/H]=+0.25 $\pm$ 0.10) M4 dwarf with three…

Kepler-444 is a five planet system around a host-star approximately 11 billion years old. The five transiting planets all have sub-Earth radii and are in a compact configuration with orbital periods between 3 and 10 days. Here we present a…

Earth and Planetary Astrophysics · Physics 2017-04-05 Sean M. Mills , Daniel C. Fabrycky

We identify targets in the Kepler field that may be characterized by transit timing variations (TTVs) and are detectable by the Transiting Exoplanet Survey Satellite (TESS). Despite the reduced signal-to-noise ratio of TESS transits…

Earth and Planetary Astrophysics · Physics 2022-07-20 Daniel Jontof-Hutter , Paul A. Dalba , John H. Livingston

A search of the time-series photometry from NASA's Kepler spacecraft reveals a transiting planet candidate orbiting the 11th magnitude G5 dwarf KIC 10593626 with a period of 290 days. The characteristics of the host star are well…

Earth and Planetary Astrophysics · Physics 2015-06-03 William J. Borucki , David G. Koch , Natalie Batalha , Stephen T. Bryson , Douglas A. Caldwell , Jørgen Christensen-Dalsgaard , William D. Cochran , Edna DeVore , Thomas N. Gautier , John C. Geary , Ronald Gilliland , Alan Gould , Steve B. Howell , Jon M. Jenkins , David W. Latham , Jack J. Lissauer , Geoffrey W. Marcy , Jason Rowe , Dimitar Sasselov , Alan Boss , David Charbonneau , David Ciardi , Guillermo Torres , Francois Fressin , Lisa Kaltenegger , Laurance Doyle , Andrea K. Dupree , Eric B. Ford , Jonathan Fortney , Matthew J. Holman , Jason A. Steffen , Fergal Mullally , Martin Still , Jill Tarter , Sarah Ballard , Lars A. Buchhave , Josh Carter , Jessie L. Christiansen , Brice-Olivier Demory , Jean-Michel Désert , Courtney Dressing , Michael Endl , Daniel Fabrycky , Debra Fischer , Michael R. Haas , Christopher Henze , Elliott Horch , Andrew W. Howard , Howard Isaacson , Hans Kjeldsen , John Asher Johnson , Todd Klaus , Jeffery Kolodziejczak , Thomas Barclay , Jie Li , Søren Meibom , Andrej Prsa , Samuel N. Quinn , Elisa V. Quintana , Paul Robertson , William Sherry , Avi Shporer , Peter Tenenbaum , Susan E. Thompson , Joseph D. Twicken , Jeffrey Van Cleve , William F. Welsh , Sarbani Basu , Bill Chaplin , Andrea Miglio , Steve Kawaler , Torben Arentoft , Dennis Stello , Travis S. Metcalfe , Graham Verner , Christoffer Karoff , Mia Lundkvist , Mikkel Lund , Rasmus Handberg , Yvonne Elsworth , Saskia Hekker , Daniel Huber , Timothy R. Bedding

We present the discovery of KIC 9632895b, a 6.2 Earth-radius planet in a low-eccentricity, 240.5-day orbit about an eclipsing binary. The binary itself consists of a 0.93 and 0.194 solar mass pair of stars with an orbital period of 27.3…

We present ground-based observations from the Discovery Channel Telescope (DCT) of three transits of Kepler-445c---a supposed super-Earth exoplanet with properties resembling GJ 1214b---and demonstrate that the transit depth is…

Earth and Planetary Astrophysics · Physics 2017-01-18 Paul A. Dalba , Philip S. Muirhead , Bryce Croll , Eliza M. -R. Kempton

Systems hosting multiple giant planets are important laboratories for understanding planetary formation and migration processes. We present a nearly decade-long Doppler spectroscopy campaign from the HIRES instrument on the Keck-I telescope…

Few planetary systems have measured mutual inclinations, and even less are found to be non-coplanar. Observing the gravitational interactions between exoplanets is an effective tool to detect non-transiting companions to transiting planets.…

We present an improved estimate of the occurrence rate of small planets orbiting small stars by searching the full four-year Kepler data set for transiting planets using our own planet detection pipeline and conducting transit injection and…

Earth and Planetary Astrophysics · Physics 2015-05-27 Courtney D. Dressing , David Charbonneau

We present a revised mass measurement for HD 119130 b (aka K2-292 b), a transiting planet ($P = 17$ days, $R_\mathrm{p} = 2.63^{+0.11}_{-0.10}$ $R_\mathrm{\oplus}$) orbiting a chromospherically inactive G dwarf, previously thought to be one…

Discoveries from the prime Kepler mission demonstrated that small planets (< 3 Earth-radii) are common outcomes of planet formation. While Kepler detected many such planets, all but a handful orbit faint, distant stars and are not amenable…

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