EAS Publications Series
Volume 17, 2005Element Stratification in Stars: 40 Years of Atomic Diffusion
|Page(s)||325 - 328|
|Published online||13 January 2006|
G. Alecian, O. Richard and S. Vauclair (eds)
EAS Publications Series, 17 (2005) 325-328
Ground-based asteroseismology of the future in Antarctica
Institut d'Astrophysique de Paris, 98b. Bd. Arago, 75014 Paris, France
2 LESIA, Observatoire de Paris-Meudon, 5 place J. Janssen, 92195 Meudon, France
A new solution is emerging for ground-based asteroseismology with the potential opening of Dome C in Antarctica as an astronomical site. At a latitude of 75° South, many sources becomes observable without interruption for several weeks, as a space instrument is doing. However, bringing a high resolution grating spectrometer in such a site would be a heavy operation. Hence, a study has been conducted for a different type of velocity seismometer, based on an interferometer (Mosser et al. 2003), leading to the concept of a compact, monolithic instrument, without moving parts, called SIAMOIS. A single instrument of this type behind a 2-m class telescope could reach the required sensitivity to observe solar-type stars of magnitude <5, with a velocity precision of few cm s-1 after 5 days. The implementation of a robotic 80-cm telescope (IRAIT) as a first equipment could make possible the preliminary tests of this new seismometer.
© EAS, EDP Sciences, 2005
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.