Computer Science
Scientific paper
Jan 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.464..681t&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,
Computer Science
6
Acoustic Mode Asymmetry, Correlated Noise
Scientific paper
We present here new results on the asymmetry of low degree p-mode profiles using GOLF and MDI data. The GOLF p-mode profiles asymmetry is found to be higher after the recovery of SOHO than it was before, whereas MDI profiles remained roughly the same. A complementary study of the phase difference between MDI and GOLF signals allows us to explain this behaviour. This study confirms the hypothesis of the influence of a correlated noise in GOLF data, and shows the dependency of this correlated noise with the observation altitude. The percentage of correlated noise in GOLF data is computed.
Boumier Patrick
Gabriel Alan H.
GOLF Team
Henney Carl John
Thiery S.
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