Talk abstract details

Autocorrelation has been presented as a powerful tool for a rapid analysis of asteroseismic times series, capable of providing measurements of the large and small frequency separations. The performance of this method needed to be assessed and quantified.

We demonstrate that the method makes it possible to measure the mean large separation, the variation of the large separation with frequency and the small separation. Furthermore, we can quantify the precision of the performance of these different measurements and we can provide a reliable degree identification.

We have used the method for analysing solar-like oscillations CoRoT and Kepler targets and will present results obtained in different cases: red giants, stars hosting an exoplanet, time series with very low signal-to-noise ratio. We have also analyzed the Fourier spectrum of Procyon, observed in 2007 with a ground-based network.