Abstract
In this chapter we review stellar activity. First we discuss different types of stars on the Hertzsprung–Russell diagram, then we describe how stellar activity can be measured and compare stellar activity with solar activity. From a comparison between stellar activity with solar activity, a better understanding of how the solar dynamo works and how chaotically it behaves is obtained.
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Notes
- 1.
1 parsec \(=\)1 pc \(=\)3.26 Light years, Ly. 1 Ly \(= 10^{13}\) km.
- 2.
This mass is also called Chandrasekhar mass.
- 3.
About 50% of all stars may be binary systems or even multiple systems.
- 4.
Also called seven sisters.
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Hanslmeier, A. (2020). Stellar Activity. In: The Chaotic Solar Cycle. Atmosphere, Earth, Ocean & Space. Springer, Singapore. https://doi.org/10.1007/978-981-15-9821-0_6
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DOI: https://doi.org/10.1007/978-981-15-9821-0_6
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