Sunspots: An overview
@article{Solanki2003SunspotsAO, title={Sunspots: An overview}, author={Sami K. Solanki}, journal={The Astronomy and Astrophysics Review}, year={2003}, volume={11}, pages={153-286} }
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…
515 Citations
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References
SHOWING 1-10 OF 12 REFERENCES
Sunspots : theory and observations
- Physics
- 1992
Preface. I: Introduction. The Theory of Sunspots J.H. Thomas, N.O. Weiss. II: Setting the Scene. Starspots P.B. Byrne. The Evolution of Sunspots C. Zwaan. III: Overall Structure of Sunspots.…
The sun : a laboratory for astrophysics
- Physics
- 1992
Preface. 1. Opening Address J.C. Brown. Part I: Solar Interior. 2. The Structure and Evolution of the Sun J. Christensen-Dalsgaard. 3. Seismic Investigation of the Solar Interior J.…
The role of fine-scale magnetic fields on the structure of the solar atmosphere
- Physics, Environmental Science
- 1987
This book records the Inaugural Workshop meeting held on Tenerife to mark the commencement of scientific operations at the Roque de los Muchachos Observatory and the Instituto de Astrofisica de…
Solar Magnetic Fields: Polarized Radiation Diagnostics
- Physics
- 1994
Preface. 1. Solar Magnetism -- an Overview. 2. Theory of Polarized Radiation. 3. Interaction of Matter with Radiation. 4. Radiative Transfer without Scattering. 5. Classical Scattering and the Hanle…
Encyclopedia of Astronomy and Astrophysics
- Physics, Education
- 2001
A collaboration between the Institute of Physics Publishing and Macmillan Reference Ltd, this work presents an extensive and comprehensive reference on astronomy and astrophysics. It has 800…