Michael BREGER (Ed.)


Communications in Asteroseismology, Volume 163

December 2011



ISBN 978-3-7001-7194-2
Print Edition
ISBN 978-3-7001-7248-2
Online Edition
Communications in Asteroseismology 163  doi:10.1553/cia163 
2011,  130 Seiten, 23x15cm, broschiert
€  9,99   
Open access


Die Serie Communications in Asteroseismology (CoAst) stellt eine international gefragte Plattform für wissenschaftliche Publikationen der neuesten Forschungsergebnisse auf dem Gebiet der Asteroseismologie dar. Forschungsgegenstand der Asteroseismologie sind veränderliche und pulsierende Sterne. Neben den halbjährlich erscheinenden regulären Ausgaben mit Beiträgen aus der laufenden Forschung werden auch Sonderausgaben für Konferenzberichte bzw. Programmhandbücher herausgegeben.

Contents:
SigSpec User's Manual by P. Reegen
Cinderella User's Manual by P. Reegen

The publication series of Communications in Asteroseismology (CoAst) is one of the most important international journals in the field of asteroseismology. Asteroseismology is the science of variable and pulsating stars. Every six months CoAst publishes a newsletter with papers on ongoing research projects. Besides these regular issues, special issues such as conference proceedings or program manuals are published in this series.

Verlag der Österreichischen Akademie der Wissenschaften
Austrian Academy of Sciences Press
A-1011 Wien, Dr. Ignaz Seipel-Platz 2
Tel. +43-1-515 81/DW 3402-3406, Fax +43-1-515 81/DW 3400
https://verlag.oeaw.ac.at, e-mail: verlag@oeaw.ac.at

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Communications in Asteroseismology, Volume 163


ISBN 978-3-7001-7194-2
Print Edition
ISBN 978-3-7001-7248-2
Online Edition



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Austrian Academy of Sciences Press
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Tel. +43-1-515 81/DW 3402-3406, Fax +43-1-515 81/DW 3400
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doi:10.1553/cia163s3



Thema: journals
Michael BREGER (Ed.)


Communications in Asteroseismology, Volume 163

December 2011



ISBN 978-3-7001-7194-2
Print Edition
ISBN 978-3-7001-7248-2
Online Edition
Communications in Asteroseismology 163  doi:10.1553/cia163 
2011,  130 Seiten, 23x15cm, broschiert
€  9,99   
Open access

Peter Reegen
PDF Icon  SigSpec User's Manual ()
S.  3 - 98
doi:10.1553/cia163s3

Open access
Abstract:
SigSpec computes the spectral significance levels for the DFT (Discrete Fourier Transform) amplitude spectrum of a time series at arbitrarily given sampling. It is based on the analytical solution for the Probability Density Function (PDF) of an amplitude level, including dependencies on frequency and phase and referring to white noise. Using a time series dataset as input, an iterative procedure including step-by-step prewhitening of the most significant signal components and MultiSine leastsquares fitting is provided to determine a whole set of signal components, which makes the program a powerful tool for multi-frequency analysis. Instead of the step-by-step prewhitening of the most significant peaks, the program is also able to take into account several steps of the prewhitening sequence simultaneously and check for the combination associated to a minimum residual scatter. This option is designed to overcome the aliasing problem caused by periodic time gaps in the dataset. SigSpec can detect non-sinusoidal periodicities in a dataset by simultaneously taking into account a fundamental frequency plus a set of harmonics. Time-resolved spectral significance analysis using a set of intervals of the time series is supported to investigate the development of eigenfrequencies over the observation time. Furthermore, an extension is available to perform the SigSpec analysis for multiple time series input files at once. In this MultiFile mode, time series may be tagged as target and comparison data. Based on this selection, SigSpec is capable of determining differential significance spectra for the target datasets with respect to coincidences in the comparison spectra. A built-in simulator to generate and superpose a variety of sinusoids and trends as well as different types of noise completes the software package at the present stage of development.

Published Online:  2012/01/16 09:26:44
Object Identifier:  0xc1aa5576 0x002a557b

Die Serie Communications in Asteroseismology (CoAst) stellt eine international gefragte Plattform für wissenschaftliche Publikationen der neuesten Forschungsergebnisse auf dem Gebiet der Asteroseismologie dar. Forschungsgegenstand der Asteroseismologie sind veränderliche und pulsierende Sterne. Neben den halbjährlich erscheinenden regulären Ausgaben mit Beiträgen aus der laufenden Forschung werden auch Sonderausgaben für Konferenzberichte bzw. Programmhandbücher herausgegeben.

Contents:
SigSpec User's Manual by P. Reegen
Cinderella User's Manual by P. Reegen

The publication series of Communications in Asteroseismology (CoAst) is one of the most important international journals in the field of asteroseismology. Asteroseismology is the science of variable and pulsating stars. Every six months CoAst publishes a newsletter with papers on ongoing research projects. Besides these regular issues, special issues such as conference proceedings or program manuals are published in this series.



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Verlag der Österreichischen Akademie der Wissenschaften
Austrian Academy of Sciences Press
A-1011 Wien, Dr. Ignaz Seipel-Platz 2
Tel. +43-1-515 81/DW 3402-3406, Fax +43-1-515 81/DW 3400
https://verlag.oeaw.ac.at, e-mail: verlag@oeaw.ac.at