404 citations · 6.7k across the 128 of their papers we have counts for
8 papers · 1 filter
On the frequency dependence of p-mode frequency shifts induced by magnetic activity in Kepler solar-like stars
D. Salabert, C. Régulo, F. Pérez Hernández +1
The variations of the frequencies of the low-degree acoustic oscillations in the Sun induced by magnetic activity show a dependence with radial order. The frequency shifts are obse…
The influence of metallicity on stellar differential rotation and magnetic activity
Christoffer Karoff, Travis S. Metcalfe, Angela R. G. Santos +20
Observations of Sun-like stars over the last half-century have improved our understanding of how magnetic dynamos, like that responsible for the 11-year solar cycle, change with ro…
Photospheric activity of the Sun with VIRGO and GOLF: Comparison with standard activity proxies
D. Salabert, R. A. García, A Jiménez +3
We study the variability of solar activity using new photospheric proxies originally developed for the analysis of stellar magnetism with the CoRoT and Kepler photometric observati…
Asymptotic g modes: Evidence for a rapid rotation of the solar core
E. Fossat, P. Boumier, T. Corbard +11
We present the identification of very low frequency g modes in the asymptotic regime and two important parameters that have long been waited for: the core rotation rate, and the as…
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…