On detecting short-lived p modes in a stellar oscillation spectrum

Details On detecting short-lived p modes in a stellar oscillation spectrum On detecting short-lived p modes in a stellar oscillation spectrum

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004a%26a...428.1039a&link_type=abstract

Astronomy and Astrophysics, v.428, p.1039-1042 (2004)

Astronomy and Astrophysics

Astrophysics

19

Stars: Oscillations, Methods: Statistical

Scientific paper

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.

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