Solar Phenomena in Stars and Stellar Systems : Proceedings of the NATO Advanced Study Institute Held at Bonas, France, August 25–September 5, 1980

This book represents the proceedings of a NATO Advanced Study Institute which was held at Bonas from August 25 till Sep­ tember 5, 1980 and was devoted to the study of "Solar Phenomena in Stars and Stellar Systems". It is intended for a broad audi­ ence. Students and post-doctoral scientists for example can dis­ cover new aspects of astrophysics. The general spirit of the ASI was aimed at presenting a unified aspect of astrophysical phenomena which can be studied intensively on the Sun although they are of a much more general nature. On the other hand, spe­ cialists in solar or stellar physics will find here the latest theoretical developments and/or the most recent observations made in their own field of research. An extensive bibliography will be found throughout the various sections, to which the reader may refer, for more detailed developments in various specific areas. In the past, stellar and solar astrophysics have more or less followed their own independent tracks. However, with the rapid development of modern techniques, in particular artificial satellites like the International Ultraviolet Explorer and the Einstein Observatory, which provide a new wealth of data, it appears that chromospheres, coronae, magnetic fields, mass loss and stellar winds, etc . . . . , are found not only in the Sun but occur also in other stars. Frequently these other stars represent quite different conditions of gravity, lumino~ity, and other parameters from those occurring in the Sun. Front Matter....Pages i-x The Sun as a Star: Solar Phenomena and Stellar Applications....Pages 1-31 The Spontaneous Concentration of Magnetic Field in the Photosphere of the Sun....Pages 33-58 Internal Structure of the Sun and Stars....Pages 59-74 Solar and Stellar Oscillations....Pages 75-98 Evidence for Chromospheres and Coronae in Stars: Recent Observations, Some Unanswered Theoretical Questions, and a Speculative Scenario....Pages 99-122 Convection Zones in Sun and Stars....Pages 123-136 Results from the Central Hyades Survey....Pages 137-144 Compressible Convection in a Rotating Spherical Shell....Pages 145-172 Energy Balance in Solar and Stellar Chromospheres....Pages 173-198 Energy Balance in Solar and Stellar Coronae....Pages 199-225 Numerical Studies of the Energy Balance in Coronal Loops....Pages 227-233 Energy, Balance, and Armagnac....Pages 235-237 Theories of Heating of Solar and Stellar Chromospheres....Pages 239-263 Mechanical Flux in the Solar Chromosphere....Pages 265-268 Magnetic Heating in the Sun....Pages 269-288 Magnetohydrodynamics of Thin Flux Tubes....Pages 289-300 Coronal Holes and Solar Mass Loss....Pages 301-318 The Solar Wind: Macroscopic Features and Microscopic Problems....Pages 319-330 Observations and Theory of Mass Loss in Late-Type Stars....Pages 331-347 Aspects of Long-Term Variability in Sun and Stars....Pages 349-397 The Solar Neutrino Problem....Pages 399-406 Chromospheres and Coronae in Binary Systems....Pages 407-430 The RS Canum Venaticorum Binaries....Pages 431-447 Stellar Magnetic Structure and Activity (Theory)....Pages 449-461 Stellar Magnetic Structure and Activity....Pages 463-486 Stellar Spots — Physical Implications....Pages 487-497 Photospheric Magnetic Field Patterns and Their Coronal and Interplanetary Consequences....Pages 499-508 Solar Flares: Magnetohydrodynamic Instabilities....Pages 509-531 Diffuse Reconnection: The Resistive Tearing-Mode....Pages 533-543 Stellar Analogs of Solar Microwave Phenomena....Pages 545-549 Summary Commentary....Pages 551-562 Back Matter....Pages 563-591 Proceedings of the NATO Advanced Study Institute, Bonas, France, August 25-September 5, 1980