Solar and Interplanetary Dynamics

Informal discussions in 1977 among a number of scientists asso­ ciated with solar and interplanetary physics revealed a need for a dialogue between the two often-divergent groups. It was clear that the latter group was dependent essentially on the sun for its raison d'etre. On the other hand it was also clear that the former group could benefit in its search for insight vis-a-vis solar activity by looking beyond the shell of the inner corona. Needless to add that the combined solar/interplanetary topic is relevant to astrophysics when one considers stellar winds and binary star flows. It was felt, there­ fore, that a symposium was essential to bring together, for the first time, leading solar and interplanetary physicists from the interna­ tional community to discuss and record herein their own research. The fundamental physical processes underlying our own capricious star's activity can be understood only by the coupling of solar and interplan­ etary topics in an intimate observational and theoretical structure. This book, intended for active research scientists and advanced grad­ uate students, is an important step in this direction. The background of solar and interplanetary dynamics is provided in Part I (The Life History of Coronal Structures and Fields) and Part II (Coronal and Interplanetary Responses to Long Time Scale Phenomena).

I. The Life History of Coronal Structures and Fields.- 1. Evolution of Coronal and Interplanetary Magnetic Fields (invited).- 2. Search for Giant Cells in the Solar Convection Zone.- 3. Dynamics of Large-Scale Magnetic Field Evolution During Solar Cycle 20.- 4. A Two-Level Solar Dynamo Based on Solar Activity, Convection, and Differential Rotation.- 5. Location of Compact Microwave Sources with Respect to Concentrations of Magnetic Field in Active Solar Regions.- 6. Radio Observations of Coronal Holes.- 7. A Model for the North Coronal Hole Observed at the 1973 Eclipse, Between 1.3 and 3.2 R.- 8. On the Possibility of Identifying Coronal Holes on Synoptic Maps of the Green Corona.- 9. Solar Observations with a New Earth-Orbiting Coronagraph.- 10. X-Ray Structures Associated with Disappearing Ha Filaments in Active Regions.- 11. The Origin of Interplanetary Sectors.- 12. Coronal Structure and Solar Wind.- 13. Solar Polar Field Reversals and Secular Variation of Cosmic Ray Intensity.- II. Coronal and Interplanetary Responses to Long Time Scale Phenomena.- 14. The Coronal Responses to the Large-Scale and Long-Term Phenomena of the Lower Layers of the Sun (invited).- 15. Interplanetary Response to Solar Long Time-Scale Phenomena (invited).- 16. Stellar Mass Flux and Coronal Heating by Shock Waves.- 17. Reflexion and Transmission of Alfvén Waves in an Atmosphere.- 18. Solar Radar Observations.- 19. Mode-Coupled MHD Waves in the Corona and Solar Wind.- 20. Properties of Magnetohydrodynamic Turbulence in the Solar Wind.- 21. An Empirical Relation Between Density, Flow Velocity and Heliocentric Distance in the Solar Wind.- 22. Are Solar Wind Measurements of Different Spacecraft Consistent?.- 23. Observation of Dust Generated Hydrogen in the Solar Vicinity.- 24. Model Calculations of Solar Wind Expansion Including an Enhanced Fraction of Ionizing Electrons.- 25. Correlated Variations of Planetary Albedos and Solar-Interplanetary Parameters.- 26. Large-Scale Magnetic Field Structure at the Earth’s Orbit, Its Correlation with Solar Activity and Orientation and Motion of the Solar System in the Galaxy.- III. Solar Transient Phenomena Affecting the Corona and Interplanetary Medium: Dynamics Deduced from Observations.- 27. Energy and Mass Injected by Flares and Eruptive Prominences (invited).- 28. X-Ray Evidence of Coronal Preflare Emission.- 29. Spicules and Macrospicules.- 30. UV Emitting Spicules.- 31. On a Peculiar Type of Filament Activation.- 32. The Filament Eruption in the 3B Flare of July 29, 1973: Onset and Magnetic Field Configuration.- 33. Dynamics of a Quiescent Filament.- 34. Particle Acceleration in the Process of Eruptive Opening and Reconnection of Magnetic Fields.- 35. On the Thermalisation of Flare-Time Energetic Electrons Observed at Radio and X-Ray Wavelengths.- 36. Recent Observations of Energetic Electrons in Solar Flares.- 37. An Energy Storage Process and Energy Budget of Solar Flares.- 38. Flare Associated Eruptive Prominence Activity of February 1, 1979.- 39. The Disruption of EUV Coronal Loops Following a Mass Ejection Transient.- 40. Decameter Radio and White Light Observations of the 21 August 1973 Coronal Transient.- 41. Radio Data and Computer Simulations for Shock Waves Generated by Solar Flares.- 42. Estimation of Shock Thickness from Dynamic Spectra of Type II Bursts.- 43. Evidence for Open Field Lines from Active Regions: Short Communication.- IV. Solar Transient Phenomena Affecting the Corona and Interplanetary Medium: - Theoretical Considerations.- 44. MHD Aspects of Coronal Transients (invited).- 45. Flare Model with Force-Free Fields and Helical Symmetry.- 46. The False Equilibrium of a Force-Free Magnetic Field.- 47. Energy Storage and Instability in Magnetic Flux Tubes.- 48. The Filament Instability in a Sheared Field.- 49. A Model for Impulsive Electron Acceleration to Energies of Tens of kTe.- 50. A Model Flare and the Continued Post-Flare Mass Release from the Flare Region.- 51. A Model of Surge.- 52. Radiative Hydrodynamics of Flares: Preliminary Results, and Numerical Treatment of the Transition Region.- 53. Reconnection Driven Coronal Transients.- 54. Coronal Propagation of an MHD Shock in the Vicinity of a Magnetic Neutral Sheet.- 55. Two-Fluid Theory of Interplanetary Shock Waves.- V. Coronal and Interplanetary Responses to Short Time Scale Phenomena: - Observations.- 56. Transient Disturbances of the Outer Corona (invited).- 57. Transient Phenomena Originating at the Sun-An Interplanetary View (invited).- 58. Measurements of Mass Flow in the Transition Region and Inner Corona.- 59. The Association of Type III Bursts and Coronal Transient Activity.- 60. Recent Very Bright Type IV Solar Metre-Wave Radio Emissions.- 61. The Solar Mass Ejection of 8 May 1979.- 62. Variations of Interplanetary Parameters and Cosmic-Ray Intensities.- 63. Two Classes of Fast Solar Wind Streams: Their Origin and Influence on the Galactic Cosmic Ray Intensity.- 64. A Large Decametric Wavelength Antenna Array for IPS Observations of Radio Sources.- 65. Interplanetary Scintillation-Preliminary Observations at 103 MHz.- 66. IPS Observations of Flare-Generated Disturbances.- 67. MAGALERT: August 27, 1978.- 68. Classification and Investigation of Solar Flare Situations Conformably to Interplanetary and Magnetospheric Disturbances.- VI. Coronal and Interplanetary Responses to Short Time Scale Phenomena: - Theoretical Considerations.- 69. Physical Driving Forces and Models of Coronal Responses (invited).- 70. Theoretical Interpretation of Travelling Interplanetary Phenomena and Their Solar Origins (invited).- 71. Physical Processes and Models of Interplanetary Responses: Suggested Theoretical Studies (invited).- 72. The Cross Sectional Magnetic Profile of a Coronal Transient.- 73. Evolution of Coronal Magnetic Structures.- 74. Magnetically Driven Motions in Solar Corona.- 75. Gasdynamics of Impulsive Heated Solar Plasma.- 76. Dynamics of Coronal Transients: Two-Dimensional Non-Plane MHD Models.- 77. Observations of Interplanetary Scintillation and a Theory of High-Speed Solar Wind.- 78. Global Modeling of Disturbances in the Corona-Interplanetary Space.- VII. Future Directions.- 79. The OPEN Program: An Example of the Scientific Rationale for Future Solar-Terrestrial Research Programs (invited).- 80. A Program for the Observations of the Sun and Heliosphere from Space 1980–1995 (invited).- 81. Proposal for an Interplanetary Mission to Sound the Outer Regions of the Solar Corona.- VIII. Summary of Symposium No. 91.- 82. Solar and Interplanetary Dynamics (Symposium Summary).