1k citations · 3.7k across the 24 of their papers we have counts for
24 papers
EarthFinder Probe Mission Concept Study: Characterizing nearby stellar exoplanet systems with Earth-mass analogs for future direct imaging
Peter Plavchan, Gautam Vasisht, Chas Beichman +52
EarthFinder is a NASA Astrophysics Probe mission concept selected for study as input to the 2020 Astrophysics National Academies Decadal Survey. The EarthFinder concept is based on…
Retired A Stars and Their Companions VIII: 15 New Planetary Signals Around Subgiants and Transit Parameters for California Planet Search Planets with Subgiant Hosts
Jacob K. Luhn, Fabienne A. Bastien, Jason T. Wright +3
We present the discovery of 7 new planets and 8 planet candidates around subgiant stars, as additions to the known sample of planets around "retired A stars" (Johnson et al. 2006).…
The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the extended Baryon Oscillation Spectroscopic Survey and from the second phase of the Apache Point Observatory Galactic Evolution Experiment
Bela Abolfathi, D. S. Aguado, Gabriela Aguilar +344
The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in operation since July 2014. This paper describes the second data release from this phase, and the fourtee…
Asteroseismology and Gaia: Testing Scaling Relations Using 2200 Kepler Stars with TGAS Parallaxes
Daniel Huber, Joel Zinn, Mathias Bojsen-Hansen +17
We present a comparison of parallaxes and radii from asteroseismology and Gaia DR1 (TGAS) for 2200 Kepler stars spanning from the main sequence to the red giant branch. We show tha…
The Correlation Between Mixing Length and Metallicity on the Giant Branch: Implications for Ages in the Gaia Era
Jamie Tayar, Garrett Somers, Marc H. Pinsonneault +28
In the updated APOGEE-Kepler catalog, we have asteroseismic and spectroscopic data for over 3000 first ascent red giants. Given the size and accuracy of this sample, these data off…
Revised Stellar Properties of Kepler Targets for the Q1-17 (DR25) Transit Detection Run
Savita Mathur, Daniel Huber, Natalie M. Batalha +14
The determination of exoplanet properties and occurrence rates using Kepler data critically depends on our knowledge of the fundamental properties (such as temperature, radius and…
A Granulation "Flicker"-based Measure of Stellar Surface Gravity
Fabienne A. Bastien, Keivan G. Stassun, Gibor Basri +1
In Bastien et al. (2013) we found that high quality light curves, such as those obtained by Kepler, may be used to measure stellar surface gravity via granulation-driven light curv…
The APOGEE Spectroscopic Survey of Kepler Planet Hosts: Feasibility, Efficiency, and First Results
Scott W. Fleming, Suvrath Mahadevan, Rohit Deshpande +33
The Kepler mission has yielded a large number of planet candidates from among the Kepler Objects of Interest (KOIs), but spectroscopic follow-up of these relatively faint stars is…
Convection in Cool Stars, as Seen Through Kepler's Eyes
Fabienne A. Bastien
Stellar surface processes represent a fundamental limit to the detection of extrasolar planets with the currently most heavily-used techniques. As such, considerable effort has gon…
Discovery of a Transiting Planet Near the Snow-Line
David M. Kipping, Guillermo Torres, Lars A. Buchhave +8
In most theories of planet formation, the snow-line represents a boundary between the emergence of the interior rocky planets and the exterior ice giants. The wide separation of th…
Larger Planet Radii Inferred from Stellar "Flicker" Brightness Variations of Bright Planet Host Stars
Fabienne A. Bastien, Keivan G. Stassun, Joshua Pepper
Most extrasolar planets have been detected by their influence on their parent star, typically either gravitationally (the Doppler method) or by the small dip in brightness as the p…
Flicker as a tool for characterizing planets through Asterodensity Profiling
David M. Kipping, Fabienne A. Bastien, Keivan G. Stassun +3
Variability in the time series brightness of a star on a timescale of 8 hours, known as 'flicker', has been previously demonstrated to serve as a proxy for the surface gravity of a…
Stellar Granulation as the Source of High-Frequency Flicker in Kepler Light Curves
Steven R. Cranmer, Fabienne A. Bastien, Keivan G. Stassun +1
A large fraction of cool, low-mass stars exhibit brightness fluctuations that arise from a combination of convective granulation, acoustic oscillations, magnetic activity, and stel…
Revised Stellar Properties of Kepler Targets for the Quarter 1-16 Transit Detection Run
Daniel Huber, Victor Silva Aguirre, Jaymie M. Matthews +19
We present revised properties for 196,468 stars observed by the NASA Kepler Mission and used in the analysis of Quarter 1-16 (Q1-Q16) data to detect and characterize transiting exo…
Estimating Stellar Radial Velocity Variability from Kepler and GALEX: Implications for the Radial Velocity Confirmation of Exoplanets
H. M. Cegla, K. G. Stassun, C. A. Watson +2
We cross-match the GALEX and Kepler surveys to create a unique dataset with both ultraviolet (UV) measurements and highly precise photometric variability measurements in the visibl…
Radial Velocity Variations of Photometrically Quiet, Chromospherically Inactive Kepler Stars: A Link Between RV Jitter and Photometric Flicker
Fabienne A. Bastien, Keivan G. Stassun, Joshua Pepper +6
We compare stellar photometric variability, as measured from Kepler light curves by Basri et al. (2011), with measurements of radial velocity (RV) root-mean-square (RMS) variations…
An observational correlation between stellar brightness variations and surface gravity
Fabienne A. Bastien, Keivan G. Stassun, Gibor Basri +1
Surface gravity is one of a star's basic properties, but it is difficult to measure accurately, with typical uncertainties of 25-50 per cent if measured spectroscopically and 90-15…
The Tenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-III Apache Point Observatory Galactic Evolution Experiment
Christopher P. Ahn, Rachael Alexandroff, Carlos Allende Prieto +232
The Sloan Digital Sky Survey (SDSS) has been in operation since 2000 April. This paper presents the tenth public data release (DR10) from its current incarnation, SDSS-III. This da…
A Decade-Baseline Study of the Plasma States of Ejecta Knots in Cassiopeia A
John Rutherford, Daniel Dewey, Enectali Figueroa-Feliciano +4
We present the analysis of 21 bright X-ray knots in the Cassiopeia A supernova remnant from observations spanning 10 yr. We performed a comprehensive set of measurements to reveal…
Kepler-62: A five-planet system with planets of 1.4 and 1.6 Earth radii in the Habitable Zone
W. J. Borucki, E. Agol, F. Fressin +62
We present the detection of five planets -- Kepler-62b, c, d, e, and f -- of size 1.31, 0.54, 1.95, 1.61 and 1.41 Earth radii, orbiting a K2V star at periods of 5.7, 12.4, 18.2, 12…
Refined Metallicity Indices for M Dwarfs Using the SLoWPoKES Catalog of Wide, Low-mass Binaries
Saurav Dhital, Andrew A. West, Keivan G. Stassun +3
We report the results from spectroscopic observations of 113 ultra-wide, low-mass binary systems, composed largely of M0--M3 dwarfs, from the SLoWPoKES catalog of common proper mot…
High Cadence Time-Series Photometry of V1647 Orionis
Fabienne A. Bastien, Keivan G. Stassun, David A. Weintraub
We present high cadence (1-10 hr^-1) time-series photometry of the eruptive young variable star V1647 Orionis during its 2003-2004 and 2008-2009 outbursts. The 2003 light curve was…
Geometrical Constraints on the Hot Spot in Beta Lyrae
Jamie R. Lomax, Jennifer L. Hoffman, Nicholas M. Elias +2
We present results from six years of recalibrated and new spectropolarimetric data taken with the University of Wisconsin's Half-Wave Spectropolarimeter (HPOL) and six years of new…
Young Stars in the Time Domain: A Cool Stars 16 Splinter Summary
Kevin R. Covey, Peter Plavchan, Fabienne Bastien +6
Variability is a defining characteristic of young stellar systems, and optical variability has been heavily studied to select and characterize the photospheric properties of young…