Physics
Scientific paper
Jan 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.464..307g&link_type=abstract
In: Proceedings of the SOHO 10/GONG 2000 Workshop: Helio- and asteroseismology at the dawn of the millennium, 2-6 October 2000,
Physics
Soho, Helioseismology
Scientific paper
GOLF has recorded a time-series of integrated Sun velocity oscillations covering 805 days on the solar blue-wing, followed by over 700 days on the red wing, with a remarkable continuity for both series, separated by a gap of some 200 days, due to the temporary loss of SOHO. We discuss how the sub-series can be combined to provide a coherent series of around 1500 days of data. Some of the data analysis activities are reviewed, including the fitting of asymmetric resonance profiles and the search for low-frequency p-modes and g-modes. The g-mode situation remains uncertain, with some possible "candidates" and with an upper velocity limit of less than 10 mm/s. Some recent studies are summarised on the correlated solar noise and on the effect of solar activity on the multiplet separation patterns. The GOLF instrument is continuing operations, with no apparent signs of serious deterioration, indicating a possibility of extending the present series by many years.
Gabriel Alan H.
GOLF Team
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