A method to detect p-mode oscillations in solar-like star signals

Bibcode
2002A&A...396..745R
DOI
10.1051/0004-6361:20021441
Régulo, C.; Roca Cortés, T.
Bibliographical reference

Astronomy and Astrophysics, v.396, p.745-751 (2002)

Advertised on:
12
2002
Journal
Astronomy and Astrophysics
Number of authors
2
IAC number of authors
2
Citations
10
Refereed citations
7
Description
A good example of finding a signal buried in noise, a common problem in Astrophysics, is the search for stellar oscillations in the acoustic power spectrum of solar-like stars. In this work it is shown that it is possible to find this type of signal in the power spectrum of stellar oscillations if the peaks are ``almost'' equally spaced in frequency, as the asymptotic theory for acoustic modes predicts. This signature of the power spectra of the p-mode oscillations in solar-like stars is used to design a method that allows the identification of the signal even when this signal is completely buried in noise, sigma_signal /sigma_signal +noise < 1/25.
Type
Refereed
Methods

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