SIMBAD references

2002A&A...394L...5F - Astronomy and Astrophysics, volume 394, L5-8 (2002/10-4)

Detection of Solar-like oscillations in the G7 giant star ξ Hya.

FRANDSEN S., CARRIER F., AERTS C., STELLO D., MAAS T., BURNET M., BRUNTT H., TEIXEIRA T.C., DE MEDEIROS J.R., BOUCHY F., KJELDSEN H., PIJPERS F. and CHRISTENSEN-DALSGAARD J.

Abstract (from CDS):

We report the firm discovery of solar-like oscillations in a giant star. We monitored the star ξ Hya (G7III) continuously during one month with the CORALIE spectrograph attached to the 1.2m Swiss Euler telescope. The 433 high-precision radial-velocity measurements clearly reveal multiple oscillation frequencies in the range 50-130µHz, corresponding to periods between 2.0 and 5.5 hours. The amplitudes of the strongest modes are slightly smaller than 2m/s. Current model calculations are compatible with the detected modes.

Abstract Copyright:

Journal keyword(s): asteroseismology - solar type oscillations - giant stars

Simbad objects: 7

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