Abstract: The existence of sunspots has been known since ancient times (Sec. 1.1), but it was only in 1908 that they were found to be the sites of very strong magnetic fields, where huge magnetic flux tubes emerge through the solar surface. In the past ten years, there has been a sea change in understanding due to high-resolution observations of their fine-scale structure from the ground and space (Figures 1.28 and 1.29), as well as an initial probing of subsurface structure by local helioseismology and an increase in computational power that has made much more realistic simulations viable.
Publication Year: 2014
Publication Date: 2014-04-07
Language: en
Type: book-chapter
Indexed In: ['crossref']
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