Frequency evolution with activity cycle in GOLF data: dependence on m
Abstract
We present here new results on the low degree p-mode frequency shifts with solar activity. This analysis based on GOLF observations aims to look for an m-dependence of the frequency shifts, already observed for intermediate degree modes but only predicted for low degree. We show that the l=2 zonal modes display shifts which are distinct from the l=2 sectoral modes. This introduces an asymmetry in the pattern of the multiplet which has to be taken into account in the fitting processes.
- Publication:
-
SOHO 10/GONG 2000 Workshop: Helio- and Asteroseismology at the Dawn of the Millennium
- Pub Date:
- January 2001
- Bibcode:
- 2001ESASP.464..119T
- Keywords:
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- ACOUSTIC FREQUENCIES;
- MAGNETIC ACTIVITY