FliPer: checking the reliability of global seismic parameters from automatic pipelines

L. Bugnet, R. A. Garcia, G. R. Davies, S. Mathur, E. Corsaro

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Our understanding of stars through asteroseismic data analysis is limited by our ability to take advantage of the huge amount of observed stars provided by space missions such as CoRoT, Kepler, K2, and soon TESS and PLATO. Global seismic pipelines provide global stellar parameters such as mass and radius using the mean seismic parameters, as well as the effective temperature. These pipelines are commonly used automatically on thousands of stars observed by K2 for 3 months (and soon TESS for at least around 1 month). However, pipelines are not immune from misidentifying noise peaks and stellar oscillations. Therefore, new validation techniques are required to assess the quality of these results. We present a new metric called FliPer (Flicker in Power), which takes into account the average variability at all measured time scales. The proper calibration of FliPer enables us to obtain good estimations of global stellar parameters such as surface gravity that are robust against the influence of noise peaks and hence are an excellent way to find faults in asteroseismic pipelines.
Original languageEnglish
Title of host publicationJournées 2017 de la Société Française d’Astronomie & d’Astrophysique (SF2A)
PublisherSociete Francaise d'Astronomie et d'Astrophysique
Publication statusPublished - 8 Nov 2017
EventJournées de la SF2A 2017 - FIAP Jean Monnet, Paris, France
Duration: 4 Jul 20177 Jul 2017


ConferenceJournées de la SF2A 2017
Abbreviated titleSF2A 2017
Internet address

Bibliographical note

4 pages, 3 figures, Proceedings for SF2A 2017 (Paris)


  • astro-ph.SR


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