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20112024
most citedOscillations above sunspots from the temperature minimum to the corona

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astro-ph.SR2024

Three-Minute Oscillations in Sunspot's Penumbrae and Superpenumbrae. Alfvénic or Sound?

Andrei Chelpanov, Nikolai Kobanov

In the immediate sunspots' vicinity -- their superpenumbra -- 3-minute line-of-sight (LOS) velocity oscillations dominate in the photosphere and chromosphere. Oscillations of simil…