Doppler ground-based search for solar-like oscillations with CORALIE and HARPS

被引:0
|
作者
Bouchy, F [1 ]
Carrier, F [1 ]
机构
[1] Observ Geneva, CH-1290 Sauverny, Switzerland
关键词
stars : oscillations; techniques : radial velocities;
D O I
暂无
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Observations of solar-like oscillation frequencies allow to constrain theory of structure and evolution of stars with an outer convective zone. Recent improvements in radial velocity measurements have led to p-mode detections on some bright target stars. We briefly review some Doppler ground-based programs of asteroseismology of solar-like stars in operation and present results obtained on alpha Cen A with the spectrograph CORALIE. Photon noise study shows that the future spectrograph HARPS, which will be installed on the 3.6 m ESO La Silla telescope, will be able to conduct a program of asteroseismology from the ground on several tens of solar-like stars. Such an astero-seismological program is far from the expected accuracy of the future photometric space missions but is useful to conduct a preliminary and complementary study on solar-like stars.
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页码:253 / 256
页数:4
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