SIMBAD references

2008CoAst.153...84K - Com. in Asteroseismology, 153, 84 (2008/April-0)

MOST found evidence for solar-type oscillations in the K2 giant star HD 20884.

KALLINGER T., GUENTHER D.B., WEISS W.W., HARETER M., MATTHEWS J.M., KUSCHNIG R., REEGEN P., WALKER G.A.H., RUCINSKI S.M., MOFFAT A.F.J. and SASSELOV D.

Abstract (from CDS):

We found evidence for radial p-modes and nonradial mixed modes in the oscillation spectrum of the K giant HD 20884 based on 20.6 days of nearly continuous high-precision photometry obtained by the Canadian microsatellite MOST. Oscillation frequencies range from 5-31 \muHz (periods of about 2.3 d - 9 hr) with luminosity amplitudes between about 300 and 950 ppm and mode lifetimes exceeding 10 days are indicated. The mode identifications are based on searches of a large grid of models for a best fit to the frequencies and temperature of HD 20884. The latter is better constrained now by spectroscopy obtained at the David Dunlap Observatory as part of this work.

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2021.05.17-18:14:18

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