Abstract
We analyze the characteristics of high-degree solar acoustic modes in the vicinity of magnetic active regions and compare with those of magnetically quiet regions at the same latitude and at nearly the same time. We applied ring-diagram analysis to GONG+ and MDI data, using the 13-parameter mode-fitting model of Basu & Antia [1]. We explore the correlations of variations in mode frequencies, amplitudes, widths, and asymmetries with the total magnetic flux of the analyzed regions.
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