Significance of periodogram peaks and a pulsation mode analysis of the Beta Cephei star V403 Car

F. A.M. Frescura; C. A. Engelbrecht; B. S. Frank

doi:10.1111/j.1365-2966.2008.13499.x

Significance of periodogram peaks and a pulsation mode analysis of the Beta Cephei star V403 Car

F. A.M. Frescura, C. A. Engelbrecht, B. S. Frank

Physics

University of the Witwatersrand

Research output: Contribution to journal › Article › peer-review

66 Citations (Scopus)

Abstract

We discuss some commonly used methods for determining the significance of peaks in the periodograms of time series. We review methods for constructing the classical significance tests, their corresponding false alarm probability functions and the role played in these by independent random variables and by empirical and theoretical cumulative distribution functions. We discuss the concepts of independent frequencies and oversampling in periodogram analysis. We then compare the results of new Monte Carlo simulations for evenly spaced time series with results obtained previously by other authors, and present the results of Monte Carlo simulations for a specific unevenly spaced time series obtained for V403 Car.

Original language	English
Pages (from-to)	1693-1707
Number of pages	15
Journal	Monthly Notices of the Royal Astronomical Society
Volume	388
Issue number	4
DOIs	https://doi.org/10.1111/j.1365-2966.2008.13499.x
Publication status	Published - Aug 2008

Keywords

Methods: data analysis
Methods: statistical
Stars: oscillations

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1111/j.1365-2966.2008.13499.x

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AU - Frank, B. S.

PY - 2008/8

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AB - We discuss some commonly used methods for determining the significance of peaks in the periodograms of time series. We review methods for constructing the classical significance tests, their corresponding false alarm probability functions and the role played in these by independent random variables and by empirical and theoretical cumulative distribution functions. We discuss the concepts of independent frequencies and oversampling in periodogram analysis. We then compare the results of new Monte Carlo simulations for evenly spaced time series with results obtained previously by other authors, and present the results of Monte Carlo simulations for a specific unevenly spaced time series obtained for V403 Car.

KW - Methods: data analysis

KW - Methods: statistical

KW - Stars: oscillations

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JF - Monthly Notices of the Royal Astronomical Society

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Significance of periodogram peaks and a pulsation mode analysis of the Beta Cephei star V403 Car

Abstract

Keywords

ASJC Scopus subject areas

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