5k citations · 14.5k across the 100 of their papers we have counts for
20 papers · 1 filter
TESS Data for Asteroseismology: Timing verification
Carolina von Essen, Mikkel N. Lund, Rasmus Handberg +11
The Transiting Exoplanet Survey Satellite (TESS) is NASA's latest space telescope dedicated to the discovery of transiting exoplanets around nearby stars. Besides the main goal of…
TOI-257b (HD 19916b): A Warm sub-Saturn Orbiting an Evolved F-type Star
Brett C. Addison, Duncan J. Wright, Belinda A. Nicholson +91
We report the discovery of a warm sub-Saturn, TOI-257b (HD 19916b), based on data from NASA's Transiting Exoplanet Survey Satellite (TESS). The transit signal was detected by TESS…
A giant impact as the likely origin of different twins in the Kepler-107 exoplanet system
Aldo S. Bonomo, Li Zeng, Mario Damasso +49
Measures of exoplanet bulk densities indicate that small exoplanets with radius less than 3 Earth radii () range from low-density sub-Neptunes containing volatile element…
A Hot Saturn Orbiting An Oscillating Late Subgiant Discovered by TESS
Daniel Huber, William J. Chaplin, Ashley Chontos +139
We present the discovery of TOI-197.01, the first transiting planet identified by the Transiting Exoplanet Survey Satellite (TESS) for which asteroseismology of the host star is po…
The K2-ESPRINT Project V: a short-period giant planet orbiting a subgiant star
Vincent Van Eylen, Simon Albrecht, Davide Gandolfi +31
We report on the discovery and characterization of the transiting planet K2-39b (EPIC 206247743b). With an orbital period of 4.6 days, it is the shortest-period planet orbiting a s…
Hot super-Earths stripped by their host stars
M. S. Lundkvist, H. Kjeldsen, S. Albrecht +26
Simulations predict that hot super-Earth sized exoplanets can have their envelopes stripped by photo-evaporation, which would present itself as a lack of these exoplanets. However,…
Spin-orbit alignment of exoplanet systems: ensemble analysis using asteroseismology
T. L. Campante, M. N. Lund, J. S. Kuszlewicz +23
The angle between a planet's orbital axis and the spin axis of its parent star is an important diagnostic of planet formation, migration, and tidal evolution. We seek empirical…
The Kepler-454 System: A Small, Not-rocky Inner Planet, a Jovian World, and a Distant Companion
Sara Gettel, David Charbonneau, Courtney D. Dressing +47
Kepler-454 (KOI-273) is a relatively bright (V = 11.69 mag), Sun-like starthat hosts a transiting planet candidate in a 10.6 d orbit. From spectroscopy, we estimate the stellar tem…
KOI-3158: The oldest known system of terrestrial-size planets
T. L. Campante, T. Barclay, J. J. Swift +38
The first discoveries of exoplanets around Sun-like stars have fueled efforts to find ever smaller worlds evocative of Earth and other terrestrial planets in the Solar System. Whil…
An ancient extrasolar system with five sub-Earth-size planets
T. L. Campante, T. Barclay, J. J. Swift +38
The chemical composition of stars hosting small exoplanets (with radii less than four Earth radii) appears to be more diverse than that of gas-giant hosts, which tend to be metal-r…
Kepler-432: a red giant interacting with one of its two long period giant planets
Samuel N. Quinn, Timothy R. White, David W. Latham +28
We report the discovery of Kepler-432b, a giant planet () transiting an evolved star $(M_\star =…
Asteroseismic inference on the spin-orbit misalignment and stellar parameters of HAT-P-7
Mikkel N. Lund, Mia Lundkvist, Victor Silva Aguirre +12
The measurement of obliquities in star-planet systems is of great importance for the understanding of planet system formation and evolution. The bright and well studied HAT-P-7 sys…
Kepler-93b: A Terrestrial World Measured to within 120 km, and a Test Case for a New Spitzer Observing Mode
Sarah Ballard, William J. Chaplin, David Charbonneau +22
We present the characterization of the Kepler-93 exoplanetary system, based on three years of photometry gathered by the Kepler spacecraft. The duration and cadence of the Kepler o…
Masses, Radii, and Orbits of Small Kepler Planets: The Transition from Gaseous to Rocky Planets
Geoffrey W. Marcy, Howard Isaacson, Andrew W. Howard +100
We report on the masses, sizes, and orbits of the planets orbiting 22 Kepler stars. There are 49 planet candidates around these stars, including 42 detected through transits and 7…
Stellar Spin-Orbit Misalignment in a Multiplanet System
Daniel Huber, Joshua A. Carter, Mauro Barbieri +32
Stars hosting hot Jupiters are often observed to have high obliquities, whereas stars with multiple co-planar planets have been seen to have low obliquities. This has been interpre…
A sub-Mercury-sized exoplanet
Thomas Barclay, Jason F. Rowe, Jack J. Lissauer +55
Since the discovery of the first exoplanet we have known that other planetary systems can look quite unlike our own. However, until recently we have only been able to probe the upp…
Asteroseismic determination of obliquities of the exoplanet systems Kepler-50 and Kepler-65
W. J. Chaplin, R. Sanchis-Ojeda, T. L. Campante +26
Results on the obliquity of exoplanet host stars -- the angle between the stellar spin axis and the planetary orbital axis -- provide important diagnostic information for theories…
Kepler-68: Three Planets, One With a Density Between That of Earth and Ice Giants
Ronald L. Gilliland, Geoffrey W. Marcy, Jason F. Rowe +30
NASA's Kepler Mission has revealed two transiting planets orbiting Kepler-68. Follow-up Doppler measurements have established the mass of the innermost planet and revealed a third…
Kepler-36: A Pair of Planets with Neighboring Orbits and Dissimilar Densities
Joshua A. Carter, Eric Agol, William J. Chaplin +43
In the Solar system the planets' compositions vary with orbital distance, with rocky planets in close orbits and lower-density gas giants in wider orbits. The detection of close-in…
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…