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Full Description
This Symposium, the first devoted entirely to the measurement and the role of magnetic fields in the non-solar Universe, was held in Heidelberg, on June 19-23, 1989. The meeting began with review talks on magnetic phenomena near the solar photosphere, corona, and in stellar winds, since these nearby "laboratories", studied for many years, provide much of the prior knowl edge of magnetic effects in astrophysical plasmas. The Symposium contained presentations of considerable new work concerning the role of magnetic fields in accretion disks, bipolar outflows, and related magnetic phenomena in molecular clouds and star forming regions. Both observa tions and related theory of the large-scale magnetic fields in the Milky Way were covered, in addition to a session on the more general theme of magnetohydrodynamics of galactic magnetic fields. Dynamo mechanisms were discussed in considerable detail. It was apparent that recent observational data on polarized emission from external galaxies are now of sufficiently high quality that meaningful tests of large-scale field amplification, and of ideas on the origin of galactic magnetic fields, can be undertaken. Both new observations and numerical simulation work were described in the context of active galaxy nuclei, supernova remnants, radio source jets and extended lobes, and also in the environment of galaxy clusters. Recent large-scale computer simulations incorporating magnetic fields in star formation, radio source jets, and many other phenomena were presented, and much of this was very new.
Contents
1. A Survey of Magnetic Phenomena near the Solar Photosphere, in the Corona, and in Stellar Winds.- 2. The Magnetic Field Structure of the Milky Way: The Meeting of Observation and Theory.- 3. Magnetic Fields in and around Supernova Remnants.- 4. Magnetohydrodynamics of Galactic Magnetic Fields.- 5. The Polarization, Magnetic Field and Velocity Structure of External Spiral Galaxies.- 6. Magnetic Fields in Molecular Clouds, Dark Globules and in the Pre-Stellar and Circumstellar Environment.- 7. Magnetic Fields in Galactic Nuclei.- 8. The Role of Magnetic Fields in Radio Source Jets and Extended Radio Lobes.- 9. Magnetic Fields in the Galactic Environment, Galaxy Clusters and Intergalactic Medium.- 10. Magnetic Fields at High Redshifts and in the Early Universe.- 11. Concluding Summary Remarks.- Author Index.
