Time-frequency analysis of HD 174936 and HD 174966 using the synchrosqueezed wavelet transform

δ Scuti stars are intermediate-mass pulsators located in the classical Cepheid instability strip with spectral types ranging from A to F. In the last years, some authors found an amplitude and frequency modulation in some of these stars. In our work we have chosen the continuous wavelet transform as...

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Bibliographic Details
Main Authors: A. Ramón-Ballesta, J. Pascual-Granado, R. Garrido
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-07-01
Series:Frontiers in Astronomy and Space Sciences
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fspas.2022.948979/full