The “four sigma” limit for significant periodicities

dc.contributor.author	Koen, Chris
dc.date.accessioned	2013-11-21T09:35:32Z
dc.date.available	2013-11-21T09:35:32Z
dc.date.issued	2010
dc.description.abstract	Most of the pulsations which have been observed in sdB stars have very low amplitudes. Detection of modes from photometric observations is usually performed by noting the most prominent peaks in a periodogram or, equivalently, an amplitude spectrum. A common strategy is to assume that peaks which exceed four times the mean noise level correspond to significant periodicities. The efficiency of the assumption is investigated by simulation. It is found that the actual significance levels corresponding to the four sigma limit may vary by orders of magnitude, depending on the exact data configuration.	en_US
dc.description.accreditation	Web of Science	en_US
dc.identifier.citation	Koen, C. (2010). The “four sigma” limit for significant periodicities. Astrophysics and Space Science, 329: 267-271	en_US
dc.identifier.issn	0004-640X
dc.identifier.uri	http://hdl.handle.net/10566/847
dc.language.iso	en	en_US
dc.privacy.showsubmitter	false
dc.publisher	Springer Verlag	en_US
dc.rights	© 2010 Springer Verlag.
dc.source.uri	http://dx.doi.org/10.1007/s10509-009-0199-z
dc.status.ispeerreviewed	true
dc.subject	Methods: statistical	en_US
dc.title	The “four sigma” limit for significant periodicities	en_US
dc.type	Article	en_US

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