Sunspots: An overview |
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Authors: | Sami K Solanki |
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Institution: | (1) Max-Planck-Institut für Aeronomie, 37191 Katlenburg-Lindau, Germany (e-mail: solanki@linmpi.mpg.de) , DE |
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Abstract: | Sunspots are the most readily visible manifestations of solar magnetic field concentrations and of their interaction with
the Sun's plasma. Although sunspots have been extensively studied for almost 400 years and their magnetic nature has been
known since 1908, our understanding of a number of their basic properties is still evolving, with the last decades producing
considerable advances. In the present review I outline our current empirical knowledge and physical understanding of these
fascinating structures. I concentrate on the internal structure of sunspots, in particular their magnetic and thermal properties
and on some of their dynamical aspects.
Received 27 September 2002 / Published online 3 March 2003 |
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Keywords: | : Sunspots – Sun: magnetic field – Sun: active regions – Sun: activity |
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