Context. Helioseismology has enabled us to better understandthe solar interior, while also allowing us to better constrain solarmodels. But now is a tremendous epoch for asteroseismology as spacemissions dedicated to studying stellar oscillations have been launchedwithin the last years (MOST and CoRoT). CoRoT has already provedvaluable results for many types of stars, while Kepler, which waslaunched in March 2009, will provide us with a huge number of seismicdata very soon. This is an opportunity to better constrain stellarmodels and to finally understand stellar structure and evolution. Aims. The goal of this research work is to estimate the globalparameters of any solar-like oscillating target in an automatic manner.We want to determine the global parameters of the acoustic modes (largeseparation, range of excited pressure modes, maximum amplitude, and itscorresponding frequency), retrieve the surface rotation period of thestar and use these results to estimate the global parameters of thestar (radius and mass). Methods. To prepare for the arrival and the analysis of hundredsof solar-like oscillating stars, we have developed a robust andautomatic pipeline, which was partially adapted from helioseismicmethods. The pipeline consists of data analysis techniques, such asFast Fourier Transform, wavelets, autocorrelation, as well as theapplication of minimisation algorithms for stellar-modelling. Results. We apply our pipeline to some simulated lightcurvesfrom the asteroFLAG team and the Aarhus-asteroFLAG simulator, andobtain results that are consistent with the input data to thesimulations. Our strategy gives correct results for stars withmagnitudes below 11 with only a few 10% of bad determinations among thereliable results. We then apply the pipeline to the Sun and three CoRoTtargets. In particular we determine the large separation and radius ofthe Sun, HD49933, HD181906, and HD181420. Key words: methods: data analysis - stars: oscillations
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