Interstellar Magnetic Fields : Observation and Theory Proceedings of a Workshop, Held at Scholß Ringberg, Tegernsee, September 8–12, 1986

This book contains the contributions to a workshop on interstellar magnetic fields held at Ringberg Castle in September 1986. It covers results from a very active field of astronomical research which owes its existence to the significantly improved detection of the polarisation of light and radio waves from within our Galaxy or its neighbors. Theories of the origin of interstellar magnetic fields are presented together with new observational results on the influence of these fields on the interstellar medium, star-forming regions and supernova remnants. First results of magnetohydrodynamics calculations show the relevance of interstellar magnetic fields on jets and accretion disks. Front Matter....Pages I-XII Front Matter....Pages 1-1 Interstellar Magnetic Fields — Past, Present and Future....Pages 2-7 Dynamo Excitation in Very Large Scales....Pages 8-15 Magnetic Fields of Galaxies....Pages 16-22 Bisymmetric Spiral Magnetic Fields in Spiral Galaxies....Pages 23-29 Global Structure of Magnetic Fields in Spiral Galaxies....Pages 30-37 Rotation Measures and Depolarization near the Minor Axis in M31....Pages 38-41 High Resolution Polarization Observations of M31....Pages 42-46 The Magnetic Field in IC 342....Pages 47-51 High Resolution Observations of Linearly Polarized Emissions of IC 342....Pages 52-53 Magnetic Fields in M33 and NGC 6946....Pages 54-56 The Magnetic Field Structure in M81....Pages 57-60 The Magnetic Field in the Anomalous Arms in NGC 4258....Pages 61-64 Spiral Arms as Ejection Phenomena....Pages 65-70 Optical Polarisation Studies of Galaxies....Pages 71-75 Nonthermal Radio Emission from Dwarf Galaxies: Do They Host Large-Scale Magnetic Fields?....Pages 76-81 Scale Properties of the Turbulent Magnetic Field in the Large Magellanic Cloud....Pages 82-85 Magnetic Fields and Faraday-Active Clouds out to the Distances of Quasars....Pages 86-94 Front Matter....Pages 95-95 Magnetic Fields in the Galaxy....Pages 96-99 Interstellar Polarization and Magnetic Fields....Pages 100-109 The Local Magnetic Field as Determined by Pulsar Rotation Measures....Pages 110-114 Front Matter....Pages 95-95 Extended Polarized Emission at 2695 MHz in the Galactic Plane....Pages 115-118 The Radio Continuum Brightness Minimum near Polaris: A Hole in the Interstellar Magnetic Field?....Pages 119-122 Vertical Expansion of the Galactic Gas Disk Behind the Spiral Shock Waves....Pages 123-127 Magnetic Field Effects in Galactic Disks....Pages 128-130 Magnetic Field Structure of the Galaxy and the Formation of Galactic Winds....Pages 131-141 Galaxy Magnetic Fields and Hidden Matter in Galaxies....Pages 142-145 Observations of Linear Polarization in the Galactic Centre Region....Pages 146-149 The Magnetic Field in the Galactic Center Region....Pages 150-152 Front Matter....Pages 153-153 The Strength of the Interstellar Magnetic Fields and Its Possible Role in HI Cloud Dynamics....Pages 154-160 Optical Polarisation Studies of Star Formation Regions....Pages 161-165 Observation of Magnetic Field Structure Around Newly Formed Stars....Pages 166-170 Stochastic Star Formation, Magnetic Fields and the Fine Structure of Spiral Arms....Pages 171-178 Magnetic Fields in Supernova Remnants — Results from Radio Continuum Observations....Pages 179-184 Magnetic Fields in Supernovae and Supernova Shells....Pages 185-191 Front Matter....Pages 193-193 Magnetic Fields, Black Holes and Accretion Disks....Pages 194-202 The Influence of External Magnetic Fields on the Structure of Thin Accretion Disks....Pages 203-207 Stellar and Extragalactic Jets: An Introduction....Pages 208-210 Magnetic Vortex Tubes and Charge Acceleration....Pages 211-221 Collimation of Supersonic Gas Flows by Toroidal Magnetic Fields....Pages 222-228 Jet Formation in Rapidly Rotating Magnetospheres....Pages 229-238 Front Matter....Pages 239-239 Evolving Magnetostatic Equilibria....Pages 240-250 Avoiding Magnetic Monopoles in Numerical MHD Calculations....Pages 251-254 Stochastic Particle Acceleration at Magnetohydrodynamic Shock Waves....Pages 255-259 Synchrotron Radiation in a Plasma with Random Magnetic Fields....Pages 260-263 A Few Summarizing Remarks....Pages 264-268 Conference Summary....Pages 269-270 Back Matter....Pages 271-273 Proceedings of a Workshop, Held at Schloß Ringberg, September 8-12, 1986