Chromospheric fine structure : symposium no. 56 held at Surfer's Paradise, Qld., Australia, 3-7 September 1973
R. G. Athay
Abstract
R. G. Athay
Abstract
I The Quiet Chromosphere: Limb Phenomena.- Spicules and Their Surroundings.- Radiation Pressure in Stellar Atmospheres with Application to Solar Spicules.- Chromospheric Fine Structures near the Solar Limb in H?.- Recent Developments in Improving Daytime Angular Resolution from the Ground.- Spatial and Spectral Structure of Chromospheric Lines.- II The Quiet Chromosphere: Disk Phenomena.- Why the Chromosphere has Its Discrete Fine Structure.- Properties of the Solar Filigree Structure.- Spicules are Bright and Dark.- High Resolution Spectroscopy of the Disk Chromosphere. III: Evidence for the Propagation and Dissipation of Mechanical Energy in the Chromosphere.- Comparison of H? and Caii H and K Spectroheliograms as a Diagnostic Probe.- Fine Structure of the Sun at Centimeter Wavelengths.- III The Upper Chromosphere.- Fine Structure of the Upper Chromosphere.- Further Observations of the Structure of the Chromosphere-Corona Transition Region from Limb and Disk Intensities.- Non-Static Structure of the Chromosphere-Corona Transition Region.- On the Design of Chromospheric Models.- IV Motion and Excitation in the Chromosphere.- Motions of Chromospheric Fine Structures.- Waves and Oscillations in the Chromosphere in Active and Quiet Regions.- Chromospheric Oscillations in Plages.- Trapped Oscillations in the Chromosphere in the Presence of a Magnetic Field.- V The Chromosphere in Active Regions.- The Magnetic Structure of Plages.- On Facular Models.- A Facula Model and Its Application to Facula Fine Structures.- The Relation between Chromospheric and Photospheric Structures in Sunspot Groups.- The Structure of the Prominence-Corona Interface.- Helical Field Lines in an Erupting Filament.- VI Evolution of Chromospheric Fine Structures.- Streaming Magnetic Features near Sunspots.- On the Relation between Moving Magnetic Features and the Decay Rates of Sunspots.- A Theoretical Model for the Convection of Magnetic Flux in and near Sunspots.- Evolution of Chromospheric Fine Structures on the Disk.- Evolution of Structures in the Bright H? Network.- H? Fine Structure and the Dynamics of the Solar Atmosphere.- VII Energy Balance, Heat Transfer and Heating Mechanisms in Chromospheric Fine Structures.- The Chromospheric Energy Balance.- Ray Trapping in Stellar Envelopes, Pulsational Instabilities and Heating of External Layers.- A Magnetic Model of the Chromosphere-Corona Transition Region.- Excess Heating of Corona and Chromo-sphere above Magnetic Regions by Non-Linear Alfven Waves.- The Stability of a Magnetic Flux Rope and Its Relation to Sunspots, Faculae and Flares.- General Discussion.- Index of Subjects.
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I The Quiet Chromosphere: Limb Phenomena.- Spicules and Their Surroundings.- Radiation Pressure in Stellar Atmospheres with Application to Solar Spicules.- Chromospheric Fine Structures near the Solar Limb in H?.- Recent Developments in Improving Daytime Angular Resolution from the Ground.- Spatial and Spectral Structure of Chromospheric Lines.- II The Quiet Chromosphere: Disk Phenomena.- Why the Chromosphere has Its Discrete Fine Structure.- Properties of the Solar Filigree Structure.- Spicules are Bright and Dark.- High Resolution Spectroscopy of the Disk Chromosphere. III: Evidence for the Propagation and Dissipation of Mechanical Energy in the Chromosphere.- Comparison of H? and Caii H and K Spectroheliograms as a Diagnostic Probe.- Fine Structure of the Sun at Centimeter Wavelengths.- III The Upper Chromosphere.- Fine Structure of the Upper Chromosphere.- Further Observations of the Structure of the Chromosphere-Corona Transition Region from Limb and Disk Intensities.- Non-Static Structure of the Chromosphere-Corona Transition Region.- On the Design of Chromospheric Models.- IV Motion and Excitation in the Chromosphere.- Motions of Chromospheric Fine Structures.- Waves and Oscillations in the Chromosphere in Active and Quiet Regions.- Chromospheric Oscillations in Plages.- Trapped Oscillations in the Chromosphere in the Presence of a Magnetic Field.- V The Chromosphere in Active Regions.- The Magnetic Structure of Plages.- On Facular Models.- A Facula Model and Its Application to Facula Fine Structures.- The Relation between Chromospheric and Photospheric Structures in Sunspot Groups.- The Structure of the Prominence-Corona Interface.- Helical Field Lines in an Erupting Filament.- VI Evolution of Chromospheric Fine Structures.- Streaming Magnetic Features near Sunspots.- On the Relation between Moving Magnetic Features and the Decay Rates of Sunspots.- A Theoretical Model for the Convection of Magnetic Flux in and near Sunspots.- Evolution of Chromospheric Fine Structures on the Disk.- Evolution of Structures in the Bright H? Network.- H? Fine Structure and the Dynamics of the Solar Atmosphere.- VII Energy Balance, Heat Transfer and Heating Mechanisms in Chromospheric Fine Structures.- The Chromospheric Energy Balance.- Ray Trapping in Stellar Envelopes, Pulsational Instabilities and Heating of External Layers.- A Magnetic Model of the Chromosphere-Corona Transition Region.- Excess Heating of Corona and Chromo-sphere above Magnetic Regions by Non-Linear Alfven Waves.- The Stability of a Magnetic Flux Rope and Its Relation to Sunspots, Faculae and Flares.- General Discussion.- Index of Subjects.
Key concepts: Chromosphere, Astrophysics, Physics, Coronal radiative losses, Corona (planetary geology), Sunspot, Nanoflares, Solar prominence