Main category
Natural Sciences (Physics)
Alternative category
Natural Sciences (Astrophysics and Astrononmy)
Caption
A sunspot observation (NOAA11823) is shown. First the sunspot (HMI continuum intensity) rotates across the solar disk. Then the region is zoomed in and changes to the high-resolution observation of the Dunn Solar Telescope. Then the sunspot is shown in continuum intensity, later in chromospheric intensity and in a three-dimensional view revealing umbral flashes and running penumbral waves.
Further reading
Löhner-Böttcher, J. & Bello González, N., 2015, Astronomy and Astrophysics 580, A53
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