Helioseismology of Sunspots - On the Detection of Subsurface Structure and Evolution
Affiliation
Matthias Waidele - Leibniz-Institut für Sonnenphysik (KIS)
Main category
Natural Sciences (Astrophysics and Astrononmy)
Caption
We track a total of 10 active regions, including corresponding quiet-Sun regions, using HMI Doppler-velocity data. The regions are analyzed using methods of local helioseismology, to study the subsurface structure and evolution of active regions. The full video includes the active regions (AR) and emerging active regions (EAR): EAR 11072, EAR 11105, EAR 11130, EAR 11158, EAR 11768, AR 11823, AR 11899, AR 12079, AR 12090, AR 12246.
Further reading
Absorption of High-frequency Oscillations and Its Relation to Emissivity Reduction;
DOI: 10.3847/1538-4357/abf55f
ADS: https://ui.adsabs.harvard.edu/abs/2021ApJ...913..108W
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