On detecting short-lived p modes in a stellar oscillation spectrum
Abstract
The false alarm probability for detecting peaks embedded in a power spectrum of noise was given by \cite{Scargle82}. This test has been used in helioseismology to detect long-lived modes such as g modes \citep{TA2000}. With the development of asteroseismology, there is now a need to define a similar test but for short-lived p modes. In this article, I define a false alarm test for detecting short-lived p modes, and I give the probability of detecting such modes given their signal-to-noise ratio, their linewidths and the duration of observation.
- Publication:
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Astronomy and Astrophysics
- Pub Date:
- December 2004
- DOI:
- 10.1051/0004-6361:20041682
- Bibcode:
- 2004A&A...428.1039A
- Keywords:
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- stars: oscillations;
- methods: statistical