1. Frequency and mode identification of �� Doradus from photometric and spectroscopic observations
- Author
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Brunsden, E., Pollard, K. R., Wright, D. J., De Cat, P., and Cottrell, P. L.
- Subjects
FOS: Physical sciences ,Solar and Stellar Astrophysics (astro-ph.SR) - Abstract
The prototype star for the �� Doradus class of pulsating variables was studied em- ploying photometric and spectroscopic observations to determine the frequencies and modes of pulsation. The four frequencies found were self-consistent between the obser- vation types and almost identical to those found in previous studies (1.3641 d-1 ,1.8783 d-1 , 1.4742 d-1 and 1.3209 d-1). Three of the frequencies are classified as l, m = (1, 1) pulsations and the other is ambiguous between l = 2 modes. Two frequencies are shown to be stable over twenty years since their first identification. The agreement in ground-based work makes this star an excellent calibrator for the upcoming TESS observations and a standard for continued asteroseismic modelling., Accepted for Publication in Monthly Notices of the Royal Astronomical Society, Volume 475, Issue 3, p.3813-3822
- Published
- 2018
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