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| Paper: |
New Multiple-Ridge Ring Analysis |
| Volume: |
416, Solar-Stellar Dynamos as Revealed by Helio- and Asteroseismology: GONG 2008/SOHO 21 |
| Page: |
111 |
| Authors: |
Haber, D. A. |
| Abstract: |
Traditional methods of ring analysis currently fit an individual
peak of power with a Lorentzian or asymmetric line profile plus
a background that varies with wavenumber but is constant in
frequency. The new method presented here, simultaneously fits
all the visible peaks at each wavenumber of interest along with
a frequency varying background. This technique demonstrates that
the line asymmetry found in high-degree mode ridges is largely
due to the overlap of power from nearby peaks in combination
with a frequency dependent background and does not represent the
same type of inherent asymmetry seen in the line profiles of
low-degree modes.
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