351 citations · 1.4k across the 22 of their papers we have counts for
4 papers · 1 filter
Sounding stellar cycles with Kepler - II. Ground-based observations
C. Karoff, T. S. Metcalfe, W. J. Chaplin +11
We have monitored 20 Sun-like stars in the Kepler field-of-view for excess flux with the FIES spectrograph on the Nordic Optical Telescope since the launch of Kepler spacecraft in…
Asteroseismology of KIC 11754974: a high-amplitude SX Phe pulsator in a 343-day binary system
S. J. Murphy, A. Pigulski, D. W. Kurtz +13
The candidate SX Phe star KIC 11754974 shows a remarkably high number of combination frequencies in the Fourier amplitude spectrum: 123 of the 166 frequencies in our multi-frequenc…
Fundamental parameters of red giants in 47 Tucanae
A. O. Thygesen, L. Sbordone
In these proceedings we present initial results of a spectroscopic analysis of a small sample of evolved K-giants in the globular cluster 47 Tucanae. We derive the effective temper…
On the significance of the excess number of strong MgII absorbers observed towards Gamma-ray bursts
Sharon Rapoport, Christopher A. Onken, J. Stuart B. Wyithe +2
The number of strong (equivalent width > 1A) MgII absorbers observed towards Gamma-ray bursts (GRBs) has been found to be statistically larger than the number of strong absorbers t…