| Autor: |
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., Christensen-Dalsgaard, J., 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., Christensen-Dalsgaard, J. |
| Zdroj: |
Astronomy and Astrophysics; October 2002, Vol. 394 Issue: 1 pL5-L8, 4p |
| Abstrakt: |
We report the firm discovery of solar-like oscillations in a giant star. We monitored the star ξHya (G7III) continuously during one month with the CORALIE spectrograph attached to the 1.2 m Swiss Euler telescope. The 433 high-precision radial-velocity measurements clearly reveal multiple oscillation frequencies in the range 50–130 μHz, corresponding to periods between 2.0 and 5.5 hours. The amplitudes of the strongest modes are slightly smaller than $2\ensuremath{\,\rm{m\,s}^{-1}}$. Current model calculations are compatible with the detected modes. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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