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The study of umbral dots in sunspots based on SOT/Hinode observations

Ebadi, H.; Abbasvand, V.; Pourjavadi, H.

To understand the energy transport in sunspots, it is necessary to investigate the dynamic properties of umbral dots (UDs). In this connection, we used high-resolution SOT/Hinode time-series images. The intensity oscillations of UDs are determined. We conclude that their periods are in the range of 3-5 min, which may be related to the propagation …