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The First APOKASC Catalog of Kepler Dwarf and Subgiant Stars
Aldo Serenelli, Jennifer Johnson, Daniel Huber +23
(Abridged) We present the first APOKASC catalog of spectroscopic and asteroseismic data for 415 dwarfs and subgiants. Asteroseismic data have been obtained by Kepler in short caden…
On the signatures of flare-induced global waves in the Sun: GOLF and VIRGO observations
Brajesh Kumar, Savita Mathur, Rafael A. Garcia +1
Recently, several efforts have been made to identify the seismic signatures of flares and magnetic activity in the Sun and Sun-like stars. In this work, we have analyzed the disk-i…
Surface rotation of Kepler red giant stars
T. Ceillier, J. Tayar, S. Mathur +7
Kepler allows the measurement of starspot variability in a large sample of field red giants for the first time. With a new method that combines autocorrelation and wavelet decompos…
Metallicity effect on stellar granulation detected from oscillating red giants in open clusters
E. Corsaro, S. Mathur, R. A. García +9
The effect of metallicity on the granulation activity in stars is still poorly understood. Available spectroscopic parameters from the updated APOGEE-\textit{Kepler} catalog, coupl…
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…
Evidence for compact binary systems around Kepler red giants
Isabel L. Colman, Daniel Huber, Timothy R. Bedding +9
We present an analysis of 168 oscillating red giants from NASA's mission that exhibit anomalous peaks in their Fourier amplitude spectra. These peaks result from ellipsoid…