The use of Petersen diagrams and period ratios in investigating the pulsational content of stars in the classical Instability Strip

Details The use of Petersen diagrams and period ratios in investigating the pulsational content of stars in the classical Instability Strip The use of Petersen diagrams and period ratios in investigating the pulsational content of stars in the classical Instability Strip

2004-02-09

arxiv.org/abs/astro-ph/0402201v1

Astronomy and Astrophysics

Astrophysics

Invited review presented at the MinySymposium ``Asteroseeismology and Stellar Evolution", JENAM, Budapest, 25-30 August 2003 -

Scientific paper

10.1553/cia145s53

The aspects of the analysis of photometric time-series obtained on double-mode or multiperiodic pulsating stars are briefly reviewed. In particular, the ratios between frequencies are used to pin cases revealing peculiarities. In addition to the Petersen diagrams, we also demonstrated that the period ratios can detect interesting objects. In particular, new results are obtained on High--Amplitude Delta Scuti contained in the OGLE-II database.

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