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- W2051279533 abstract "Stellar oscillations, which can be extracted from observed time series of the star's brightness or radial velocity, can provide a wealth of information about a star. In this paper we address the question of how to extract as much information as possible from such a data set. We have developed a Markov chain Monte Carlo (MCMC) code that is able to infer the number of oscillation frequencies present in the signal and their values (with corresponding uncertainties), without having to fit the amplitudes and phases. Gaps in the data do not have any serious consequences for this method; in cases where severe aliasing exists, any ambiguity in the frequency determinations will be reflected in the results. It also allows us to infer parameters of the frequency pattern, such as the large separation Δν. We have previously applied this method to the star ν Indi, and here we describe the method fully and apply it to simulated data sets, showing that the code is able to give correct results even when some of the model assumptions are violated. In particular, the nonsinusoidal nature of the individual oscillation modes due to stochastic excitation and damping has no major impact on the usefulness of our approach." @default.
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- W2051279533 date "2007-01-01" @default.
- W2051279533 modified "2023-09-26" @default.
- W2051279533 title "Bayesian Inference from Observations of Solar‐like Oscillations" @default.
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- W2051279533 doi "https://doi.org/10.1086/508766" @default.
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