Amplitude Variations in the Delta Scuti Variable Theta-2 Tauri

Details Amplitude Variations in the Delta Scuti Variable Theta-2 Tauri Amplitude Variations in the Delta Scuti Variable Theta-2 Tauri

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997pasp..109..217l&link_type=abstract

Publications of the Astronomical Society of the Pacific, v.109, p.217-220

Astronomy and Astrophysics

Astronomy

9

Cepheids, Stars: Oscillations

Scientific paper

We obtained 413 Johnson V observations of theta-2 Tau during nine nights of photoelectic photometric measurements. The Period analysis of the new data confirms the five-frequency solution found be Breger et al. in 1989. However, the new data show that the pulsation modes have experienced amplitude redistribution, on a time scale estimated to be ten years. The variations are in good agreement with predictions of resonant mode-coupling theory. (SECTION: Stars)

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