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dc.contributor.authorBaran, A.C.
dc.contributor.authorKoen, Chris
dc.contributor.authorPokrzywka, B.
dc.date.accessioned2015-12-11T08:01:35Z
dc.date.available2015-12-11T08:01:35Z
dc.date.issued2015
dc.identifier.citationBaran, A.C., et al. (2015). A detection threshold in the amplitude spectra calculated from Kepler data obtained during K2 mission. Monthly Notices of the Royal Astronomical Society, 448 (1): L16-L19.en_US
dc.identifier.issn0035-8711
dc.identifier.urihttp://hdl.handle.net/10566/2015
dc.description.abstractWe present our analysis of simulated data in order to derive a detection threshold which can be used in the pre-whitening process of amplitude spectra. In case of ground-based data of pulsating stars, this threshold is conventionally taken to be four times the mean noise level in an amplitude spectrum. This threshold is questionable when space-based data are analysed. Our effort is aimed at revising this threshold in the case of continuous 90-d Kepler K2 phase observations. Our result clearly shows that a 95 per cent confidence level, common for ground observations, can be reached at 5.4 times the mean noise level and is coverage dependent. In addition, this threshold varies between 4.8 and 5.7, if the number of cadences is changed. This conclusion should secure further pre-whitening and helps to avoid over-interpretation of spectra of pulsating stars observed with the Kepler spacecraft during K2 phase. We compare our results with the standard approach widely used in the literature.en_US
dc.language.isoenen_US
dc.publisherOxford University Pressen_US
dc.rightsOxford Open. Articles published under the Oxford Open model are made freely available online immediately upon publication, without subscription barriers to access.
dc.source.urihttp://dx.doi.org/doi:10.1093/mnrasl/slu194
dc.subjectAstronomyen_US
dc.subject90-d Kepler K2 phase observationsen_US
dc.subjectSimulated dataen_US
dc.titleA detection threshold in the amplitude spectra calculated from Kepler data obtained during K2 mission.en_US
dc.typeArticleen_US
dc.privacy.showsubmitterfalse
dc.status.ispeerreviewedtrue
dc.description.accreditationWeb of Scienceen_US


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