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Two Earth-sized planets orbiting Kepler-20
Francois Fressin, Guillermo Torres, Jason F. Rowe +33
Since the discovery of the first extrasolar giant planets around Sun-like stars, evolving observational capabilities have brought us closer to the detection of true Earth analogues…
Kepler-21b: A 1.6REarth Planet Transiting the Bright Oscillating F Subgiant Star HD 179070
Steve B. Howell, Jason F. Rowe, Stephen T. Bryson +63
We present Kepler observations of the bright (V=8.3), oscillating star HD 179070. The observations show transit-like events which reveal that the star is orbited every 2.8 days by…
Kepler-22b: A 2.4 Earth-radius Planet in the Habitable Zone of a Sun-like Star
William J. Borucki, David G. Koch, Natalie Batalha +80
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 da…
Kepler 18-b, c, and d: A System Of Three Planets Confirmed by Transit Timing Variations, Lightcurve Validation, Spitzer Photometry and Radial Velocity Measurements
William D. Cochran, Daniel C. Fabrycky, Guillermo Torres +51
We report the detection of three transiting planets around a Sunlike star, which we designate Kepler-18. The transit signals were detected in photometric data from the Kepler satel…
Planet Hunters: The First Two Planet Candidates Identified by the Public using the Kepler Public Archive Data
Debra Fischer, Megan Schwamb, Kevin Schawinski +28
Planet Hunters is a new citizen science project, designed to engage the public in an exoplanet search using NASA Kepler public release data. In the first month after launch, users…
Kepler-16: A Transiting Circumbinary Planet
Laurance R. Doyle, Joshua A. Carter, Daniel C. Fabrycky +46
We report the detection of a planet whose orbit surrounds a pair of low-mass stars. Data from the Kepler spacecraft reveal transits of the planet across both stars, in addition to…
Discovery and Atmospheric Characterization of Giant Planet Kepler-12b: An Inflated Radius Outlier
Jonathan J. Fortney, Brice-Olivier Demory, Jean-Michel Desert +34
We report the discovery of planet Kepler-12b (KOI-20), which at 1.695\pm0.030 RJ is among the handful of planets with super-inflated radii above 1.65 RJ. Orbiting its slightly evol…
The Kepler-19 System: A Transiting 2.2 R_Earth Planet and a Second Planet Detected via Transit Timing Variations
Sarah Ballard, Daniel Fabrycky, Francois Fressin +28
We present the discovery of the Kepler-19 planetary system, which we first identified from a 9.3-day periodic transit signal in the Kepler photometry. From high-resolution spectros…
The hot-Jupiter Kepler-17b: discovery, obliquity from stroboscopic starspots, and atmospheric characterization
Jean-Michel Désert, David Charbonneau, Brice-Olivier Demory +38
This paper reports the discovery and characterization of the transiting hot giant exoplanet Kepler-17b. The planet has an orbital period of 1.486 days, and radial velocity measurem…
Kepler-14b: A massive hot Jupiter transiting an F star in a close visual binary
Lars A. Buchhave, David W. Latham, Joshua A. Carter +46
We present the discovery of a hot Jupiter transiting an F star in a close visual (0.3" sky projected angular separation) binary system. The dilution of the host star's light by the…
Kepler-10c, a 2.2-Earth radius transiting planet in a multiple system
Francois Fressin, Guillermo Torres, Jean-Michel Desert +30
The Kepler Mission has recently announced the discovery of Kepler-10 b, the smallest exoplanet discovered to date and the first rocky planet found by the spacecraft. A second, 45-d…
The Kepler Cluster Study: Stellar Rotation in NGC6811
Søren Meibom, Sydney A. Barnes, David W. Latham +17
We present rotation periods for 71 single dwarf members of the open cluster NGC6811 determined using photometry from NASA's Kepler Mission. The results are the first from The Keple…
A First Comparison of Kepler Planet Candidates in Single and Multiple Systems
David W. Latham, Jason F. Rowe, Samuel N. Quinn +33
In this letter we present an overview of the rich population of systems with multiple candidate transiting planets found in the first four months of Kepler data. The census of mult…
Planet Occurrence within 0.25 AU of Solar-type Stars from Kepler
Andrew W. Howard, Geoffrey W. Marcy, Stephen T. Bryson +59
We report the distribution of planets as a function of planet radius (R_p), orbital period (P), and stellar effective temperature (Teff) for P < 50 day orbits around GK stars. Thes…
Characteristics of planetary candidates observed by Kepler, II: Analysis of the first four months of data
William J. Borucki, David G. Koch, Gibor Basri +63
On 1 February 2011 the Kepler Mission released data for 156,453 stars observed from the beginning of the science observations on 2 May through 16 September 2009. There are 1235 pla…
Kepler Eclipsing Binary Stars. II. 2165 Eclipsing Binaries in the Second Data Release
Robert W. Slawson, Andrej Prsa, William F. Welsh +21
The Kepler Mission provides nearly continuous monitoring of ~156 000 objects with unprecedented photometric precision. Coincident with the first data release, we presented a catalo…
Predicting the detectability of oscillations in solar-type stars observed by Kepler
W. J. Chaplin, H. Kjeldsen, T. R. Bedding +49
Asteroseismology of solar-type stars has an important part to play in the exoplanet program of the NASA Kepler Mission. Precise and accurate inferences on the stellar properties th…
KEPLER's First Rocky Planet: Kepler-10b
Natalie M. Batalha, William J. Borucki, Stephen T. Bryson +49
NASA's Kepler Mission uses transit photometry to determine the frequency of earth-size planets in or near the habitable zone of Sun-like stars. The mission reached a milestone towa…
The Distribution of Transit Durations for Kepler Planet Candidates and Implications for their Orbital Eccentricities
Althea V. Moorhead, Eric B. Ford, Robert C. Morehead +20
Doppler planet searches have discovered that giant planets follow orbits with a wide range of orbital eccentricities, revolutionizing theories of planet formation. The discovery of…
KOI-54: The Kepler Discovery of Tidally-Excited Pulsations and Brightenings in a Highly Eccentric Binary
William F. Welsh, Jerome A. Orosz, Conny Aerts +27
Kepler observations of the star HD 187091 (KID 8112039, hereafter KOI-54) revealed a remarkable light curve exhibiting sharp periodic brightening events every 41.8 days with a supe…
Transit Timing Observations from Kepler: I. Statistical Analysis of the First Four Months
Eric B. Ford, Jason F. Rowe, Daniel C. Fabrycky +22
The architectures of multiple planet systems can provide valuable constraints on models of planet formation, including orbital migration, and excitation of orbital eccentricities a…
Architecture and Dynamics of Kepler's Candidate Multiple Transiting Planet Systems
Jack J. Lissauer, Darin Ragozzine, Daniel C. Fabrycky +22
About one-third of the ~1200 transiting planet candidates detected in the first four months of \ik data are members of multiple candidate systems. There are 115 target stars with t…
A Closely-Packed System of Low-Mass, Low-Density Planets Transiting Kepler-11
Jack J. Lissauer, Daniel C. Fabrycky, Eric B. Ford +36
When an extrasolar planet passes in front of its star (transits), its radius can be measured from the decrease in starlight and its orbital period from the time between transits. M…