g-mode: a new generation of helioseismic instrument

Bibcode
2001ESASP.464..331T
Turck-Chièze, S.; Robillot, J. M.; Dzitko, H.; Boumier, P.; Decaudin, M.; Gabriel, A.; Garcia, R. A.; Gree, G.; Pallé, P. L.; Renaud, C.; Schmitt, D.
Bibliographical reference

In: Proceedings of the SOHO 10/GONG 2000 Workshop: Helio- and asteroseismology at the dawn of the millennium, 2-6 October 2000, Santa Cruz de Tenerife, Tenerife, Spain. Edited by A. Wilson, Scientific coordination by P. L. Pallé. ESA SP-464, Noordwijk: ESA Publications Division, ISBN 92-9092-697-X, 2001, p. 331 - 335

Advertised on:
1
2001
Number of authors
11
IAC number of authors
0
Citations
6
Refereed citations
3
Description
The GOLF team pushes a new concept of instrument devoted to the search of gravity modes and low order low frequency p modes in order to improve our knowledge of the deep solar interior. The instrumental concept is to measure the Doppler shift together with the time evolution of the D1 sodium line using a 15 point resonance spectrometer. A sodium vapor resonance cell placed in a static magnetic field varying along the longitudinal axis is used to sample simultaneously 8 points on each wing of the line. New Active Pixel Sensor detectors will be specifically designed for this instrument. A low spatial resolution of the Sun is also under study in this concept. First ground-based observations with this instrument are scheduled for 2001/2002 at Tenerife. The space concept of this instrument is under study in France as an R&T (Research and Technology) study sponsored by CNES, the French Space Agency. After some determining validation tests, this kind of instrument might be placed onboard either a micro satellite or a satellite dedicated to the study of the Sun.
Type
Non-refereed
Helioseismology

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