Do Active Regions Modify Oscillation Frequencies?
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🌌 astro-ph.SR
keywords
activityactivedifferentfrequenciesregionscorrelationcycleduring
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We investigate the variation of high-degree mode frequencies as a local response to the active regions in two different phases of the solar activity cycle. We find that the correlation between frequency shifts and the surface magnetic activity measured locally are significantly different during the two activity periods.
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