On the Analysis of Light Curves in Asteroseismology

Details On the Analysis of Light Curves in Asteroseismology On the Analysis of Light Curves in Asteroseismology

Jun 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005japa...26..283m&link_type=abstract

Journal of Astrophysics and Astronomy, Volume 26, Issue 2-3, pp. 283-292

Astronomy and Astrophysics

Astrophysics

1

Fourier Analysis, Noise Sources, Ill-Posed Problems

Scientific paper

We provide a detailed introduction to the main problems arising when analyzing light curves in asteroseismology. Attention is first paid to the signal model delivered by the pulsating stars and to the noise sources corrupting this model in photometric observations. The main pitfalls and ambiguities occurring in Fourier analysis are summarized and illustrated. Some classical, Least Squares (LS) based methods for spectrum analysis are analyzed and commented on from the point of view of ill-posed problems. The insight that can be gained from such analyses is discussed.

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