The Gamma Doradus variables, a new class of pulsating stars. The case of HD 224945

Details The Gamma Doradus variables, a new class of pulsating stars. The case of HD 224945 The Gamma Doradus variables, a new class of pulsating stars. The case of HD 224945

1996-12-06

arxiv.org/abs/astro-ph/9612063v1

Astronomy and Astrophysics

Astrophysics

2 pages, latex, 1 figure To be publishing in the Proceedings of the IAU Symposium 181 'Sounding Solar and Stellar Interior', N

Scientific paper

A multisite campaign involving five observatories allowed us to solve the light curve of the Gamma Doradus star HD 224945. The multiperiodic content, the high frequency term at 3.00 c/d and the frequency spacing between the observed terms strongly support its pulsational nature. Considering the low frequency terms observed in Gamma Dor stars, it seems that g--mode pulsators can be found near the cold border of the instability strip.

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