Bibcode
Gabriel, A. H.; Turck-Chièze, S.; García, R. A.; Pallé, P. L.; Boumier, P.; Thiery, S.; Baudin, F.; Grec, G.; Ulrich, R. K.; Bertello, L.; Roca-Cortés, T.; Robillot, J.-M.
Bibliographical reference
Advances in Space Research, Volume 24, Issue 2, p. 147-155.
Advertised on:
1
1999
Journal
Citations
4
Refereed citations
3
Description
An 800 day series of GOLF velocity data, with uniquely high continuity
and stability, offers the best ever signal to noise ratio obtained in
global Sun observations. Following meticulous efforts to provide
reliable calibration, these data have been used for measurements of
frequencies, line-widths and power in the p-modes, which are used for
inversion to give the internal sound speed, for comparison with
theoretical models. A search for g-modes is at present inconclusive, but
has yielded two possible candidate frequencies. The analysis available
today is regarded as preliminary and more complete methods are currently
in hand. With the resumption of routine observations following the SOHO
recovery, it is hoped that the data can be considerably extended,
enabling changes with the solar cycle to be explored, as well as an
extended g-mode search.