Asteroseismology has grown from its beginnings three decades ago to a mature field
teeming with discoveries and applications. This phenomenal growth has been enabled by …

Context. The Kepler spacecraft is providing time series of photometric data with
micromagnitude precision for hundreds of AF type stars. Aims. We present a first general …

Abstract The Lomb–Scargle periodogram is a well-known algorithm for detecting and
characterizing periodic signals in unevenly sampled data. This paper presents a conceptual …

ABSTRACT The Kepler Mission, launched on 2009 March 6, was designed with the explicit
capability to detect Earth-size planets in the habitable zone of solar-like stars using the …

Context. In addition to the discovery of hundreds of exoplanets, the high-precision
photometry from the CoRoT and Kepler satellites has led to measurements of surface …

The internal properties of stars in the red-giant phase undergo significant changes on
relatively short timescales. Long near-uninterrupted high-precision photometric timeseries …

Spectroscopic iron-to-hydrogen ratios, radial velocities, atmospheric parameters, and new
photometric analyses are presented for 41 RR Lyrae stars (and one probable high …

The first detection of the period doubling phenomenon is reported in the Kepler RR Lyrae
stars RR Lyr, V808 Cyg and V355 Lyr. Interestingly, all these pulsating stars show Blazhko …

We present our analysis of Kepler observations of 29 RR Lyrae stars, based on 138 d of
observation. We report precise pulsation periods for all stars. Nine of these stars had …

Abstract Classical Cepheid and RR Lyrae variables are radially pulsating stars that trace
young and old-age stellar populations, respectively. These classical pulsating stars are the …