609 citations · 12.2k across the 315 of their papers we have counts for
12 papers · 1 filter
The K2 M67 Study: An Evolved Blue Straggler in M67 from K2 Mission Asteroseismology
Emily Leiner, Robert Mathieu, Dennis Stello +1
Yellow straggler stars (YSSs) fall above the subgiant branch in optical color-magnitude diagrams, between the blue stragglers and the red giants. YSSs may represent a population of…
The K2 M67 Study: Revisiting old friends with K2 reveals oscillating red giants in the open cluster M67
D. Stello, A. Vanderburg, L. Casagrande +6
Observations of stellar clusters have had a tremendous impact in forming our understanding of stellar evolution. The open cluster M67 has a particularly important role as a calibra…
Kepler-21b: A rocky planet around a V = 8.25 magnitude star
Mercedes Lopez-Morales, Raphaelle D. Haywood, Jeffrey L. Coughlin +36
HD 179070, aka Kepler-21, is a V = 8.25 F6IV star and the brightest exoplanet host discovered by Kepler. An early detailed analysis by Howell et al. (2012) of the first thirteen mo…
Zodiacal Exoplanets in Time (ZEIT) IV: seven transiting planets in the Praesepe cluster
Andrew W. Mann, Eric Gaidos, Andrew Vanderburg +6
Open clusters and young stellar associations are attractive sites to search for planets and to test theories of planet formation, migration, and evolution. We present our search fo…
A 1.9 Earth radius rocky planet and the discovery of a non-transiting planet in the Kepler-20 system
Lars A. Buchhave, Courtney D. Dressing, Xavier Dumusque +35
Kepler-20 is a solar-type star (V = 12.5) hosting a compact system of five transiting planets, all packed within the orbital distance of Mercury in our own Solar System. A transiti…
A Quintuple Star System Containing Two Eclipsing Binaries
S. Rappaport, H. Lehmann, B. Kalomeni +12
We present a quintuple star system that contains two eclipsing binaries. The unusual architecture includes two stellar images separated by 11" on the sky: EPIC 212651213 and EPIC 2…
K2-97b: A (Re-?)Inflated Planet Orbiting a Red Giant Star
Samuel K. Grunblatt, Daniel Huber, Eric J. Gaidos +11
Strongly irradiated giant planets are observed to have radii larger than thermal evolution models predict. Although these inflated planets have been known for over fifteen years, i…
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…
Doppler Monitoring of five K2 Transiting Planetary Systems
Fei Dai, Joshua N. Winn, Simon Albrecht +21
In an effort to measure the masses of planets discovered by the NASA {\it K2} mission, we have conducted precise Doppler observations of five stars with transiting planets. We pres…
Radial Velocity Planet Detection Biases at the Stellar Rotational Period
Andrew Vanderburg, Peter Plavchan, John Asher Johnson +3
Future generations of precise radial velocity (RV) surveys aim to achieve sensitivity sufficient to detect Earth mass planets orbiting in their stars' habitable zones. A major obst…
Zodiacal Exoplanets in Time (ZEIT) III: A short-period planet orbiting a pre-main-sequence star in the Upper Scorpius OB Association
Andrew W. Mann, Elisabeth R. Newton, Aaron C. Rizzuto +14
We confirm and characterize a close-in ( = 5.425 days), super-Neptune sized ( Earth radii) planet transiting K2-33 (2MASS J16101473-1919095), a…
Drifting Asteroid Fragments Around WD 1145+017
S. Rappaport, B. L. Gary, T. Kaye +4
We have obtained extensive photometric observations of the polluted white dwarf WD 1145+017 which has been reported to be transited by at least one, and perhaps several, large aste…