Solar and Galactic Composition

Contents

• Preface and Thanks
• Group Photograph and Identification
• Solar and Galactic Composition 3
• Measuring Solar Abundances 13
• Photospheric Abundances: Problems, Updates, Implications 23
• Elemental and Isotopic Abundances in Meteorites 31
• The Isotopic Composition of Solar Nitrogen and the Heterogeneity of the Solar System 41
• The SUMER Spectral Atlas of Solar-Disk Features 45
• Coronal and Solar Wind Elemental Abundances 49
• Elemental Abundances of the Low Corona as Derived from SOHO/CDS Observations 59
• Oxygen Abundance in Polar Coronal Holes 65
• Oxygen Abundance in Streamers above 2 Solar Radii 71
• Oxygen Abundance in the Extended Corona at Solar Minimum 77
• Preliminary Results from Coordinated SOHO-Ulysses Observations 83
• The Solar Wind Helium Abundance: Variation with Wind Speed and Solar Cycle 89
• The Relative Abundance of Chromium and Iron in the Solar Wind 95
• Determination of the Ar/Ca Solar Wind Elemental Abundance Ratio Using SOHO/CELIAS/MTOF 101
• Solar Coronal Abundances of Rare Elements Based on Solar Energetic Particles 107
• Isotopic Composition Measured In-Situ in Different Solar Wind Regimes by CELIAS/MTOF on board SOHO 113
• Solar Wind Iron Isotopic Abundances: Results from SOHO/CELIAS/MTOF 121
• Isotopic Abundances in the Solar Corona as Inferred from ACE Measurements of Solar Energetic Particles 127
• A Solar Wind Coronal Origin Study from SOHO/UVCS and ACE/SWICS Joint Analysis 133
• Comparison between Average Charge States and Abundances of Ions in CMEs and the Slow Solar Wind 139
• Composition of Magnetic Cloud Plasmas during 1997 and 1998 145
• Energetic Particle Composition 153
• Long-Term Fluences of Energetic Particles in the Heliosphere 165
• The Ionic Charge State Composition at High Energies in Large Solar Energetic Particle Events in Solar Cycle 23 171
• Measurements of Heavy Elements and Isotopes in Small Solar Energetic Particle Events 177
• High-latitude Ulysses Observations of the H/He Intensity Ratio under Solar Minimum and Solar Maximum Conditions 183
• Energetic Particle Composition Measurements at High-Heliographic Latitudes around Solar Activity Maximum 189
• Ulysses Measurements of the Solar Cycle Variation of ,2-4 MeV/n Ions in the Inner Heliosphere 195
• Implications for Source Populations of Energetic Ions in Co-Rotating Interaction Regions from Ionic Charge States 201
• Galactic Abundances: Report of Working Group 3 207
• Limits to Galactic Abundances based on Gas-Phase Measurements in the Interstellar Medium 221
• Galactic Chemical Evolution 227
• Stellar Nucleosynthesis and Galactic Abundances 239
• The Cosmic-Ray Contribution to Galactic Abundances of the Light Elements: Interpretation of GCR LiBeB Abundance Measurements from ACE/CRIS 245
• Measurements of the Isotopes of Lithium, Beryllium, and Boron from ACE/CRIS 251
• GCR Neon Isotopic Abundances: Comparison with Wolf-Rayet Star Models and Meteoritic Abundances 257
• The Phosphorus/Sulfur Abundance Ratio as a Test of Galactic Cosmic-Ray Source Models 263
• Constraints on the Nucleosynthesis of Refractory Nuclides in Galactic Cosmic Rays 269
• Direct Measurement of [superscript 3]He/[superscript 4]He in the LISM with the COLLISA Experiment 275
• Composition of the Local Interstellar Cloud from Observations and Interstellar Pickup Ions 281
• New Concept for the Measurement of Energetic Neutral Atom Composition and the Imaging of their Sources 291
• The Polar Coronal Holes and the Fast Solar Wind: Some Recent Results 299
• Ion Fractionation and Mixing Processes in the Turbosphere and the Solar Wind Formation Region: Scaling Approach 305
• Acceleration in a Current Sheet and Heavy Ion Abundances in Impulsive Solar Flares 311
• On the Energy Dependence of Ionic Charge States in Solar Energetic Particle Events 317
• Particle Acceleration in Interplanetary Shocks: Classification of Energetic Particle Events and Modeling 323
• Simulation of Shock Size Asymmetry Caused by Charge Exchange with Pickup Ions 329
• The Effect of Self-Consistent Stochastic Preacceleration of Pickup Ions on the Composition of Anomalous Cosmic Rays 335
• Non-Shock Diffusive Acceleration in Regions of Solar-Wind Compression 339
• Time Variations in Elemental Abundances in Solar Energetic Particle Events 343
• [superscript 3]He-enrichments in Solar Energetic Particle Events: SOHO/COSTEP Observations 349
• Propagation of Impulsive Solar Energetic Particle Events 353
• Applications of Abundance Data and Requirements for Cosmochemical Modeling 357
• Sun, Solar Wind, Meteorites and Interstellar Medium: What are the Compositional Relations? 381
• Solar Krypton and Xenon in Gas-rich Meteorites: New Insights into a Unique Archive of Solar Wind 387
• A New Look at Neon-C and SEP-Neon 393
• Lunar Soils: A Long-Term Archive for the Galactic Environment of the Heliosphere? 399
• Primordially Produced Helium-4 in the Presence of Neutrino Oscillations 405
• The Electron Temperature and [superscript 44]Ti Decay Rate in Cassiopeia A 411
• List of Participants 417
• Author Index