IAU Symposium 101, Supernova Remnants and Their X-ray Emission, was held on the Island of San Giorgio, Venice, 30 August - 2 September 1982. It was co-sponsored by the National Research Council, Italy, the University of Padua, the Observatory of Padua, and the International Astronomical Union, and was hosted by the Cini Foundation. The contents of this volume show the wide range of disciplines that are involved in supernova remnant research. Many new results were presented, not only from the X-ray observations from the Einstein Observatory but also from observations at optical and radio wavelengths. This has led to the stimulation of theoretical work, much of which attempts to accommodate in a more unified way all of these observations. Research on supernova remnants of all ages was reported. Perhaps the most impressive part of all this work is the way in which observations at all wavelengths have extended well outside the Galaxy to other members of the Local Group and beyond. The Symposium was attended by scientists from 15 countries. Twenty­ five invited papers and sixty-eight shorter contributions were presented during the 4-day meeting. Thirty-three of these shorter contributions were presented in poster sessions. This volume contains almost all (89) of those contributions. They are followed by discussions which took place after each verbal presentation. Since the availability of the discussions was left to the individual contributors, they are not complete, but those contained in this volume convey some idea of the nature of the exchanges.

Inhalt

I. Young Supernova Remnants.- The Mass and Structure of the Remnant of Tycho's Supernova.- X-Ray Spectra of Young Supernova Remnants.- The High Energy X-Ray Spectra of Supernova Remnants.- Structural Changes in Cas A, Tycho and Other Young Supernova Remnants.- The Expansion of Cassiopeia A.- Recent Observations of Cassiopeia A.- An X-Ray Halo Around Cassiopeia A.- VLA Observations of SGR A.- The Interaction of Supernova Ejecta with an Ambient Medium.- Very High Resolution Calculations of Very Young Supernova Remnants.- X-Ray Emission from Supernova Remnants in a Cloudy Medium.- Non-Equilibrium Ionization X-Ray Emission from Supernova Remnants.- X-Ray Line Emission from Supernova Remnants and Models for Nonequilibrium Ionization.- The Effect of SNR Structure on Non-Equilibrium X-Ray Spectra.- The Evolution of Young Supernova Remnants.- Spherization of the Remnants of Asymmetrical SN Explosions in a Uniform Medium.- X-Ray Study of the Crab Nebula and the Crab and Vela Pulsars.- Presupernova Evolution of 8-12 M? Stars and the Crab Nebula's Progenitor.- The Crab Nebula's Jet.- High Oxygen Abundance in a Bright Filament of the Crab Nebula.- The Peculiar X-Ray Morphology of the SNR G292.0+1.8: Evidence for an Asymmetric Supernova Explosion.- The Kinematics of the SNR G292.0+1.8.- A Dynamical Study of the Young Oxygen-Rich Supernova Remnant in the Small Magellanic Cloud.- Radio Supernovae.- Radio and X-Ray Emission from Newly Born Remnants.- Particle Acceleration and Radio Emission of the Supernovae Remnants at Different Stages of their Evolution.- The Evolution of Supernova Remnants as Radio Sources.- II. Middle Aged and Older Supernova Remnants.- Optical Properties of Supernova Remnants.- High Resolution X-Ray Spectra of Supernova Remnants.- Recent Radio Studies of SNR.- Non-Equilibrium Modelling of the Structure and Spectra of Shock Waves.- The Structure and Emission of a Non-Radiative Shock.- Near Infrared Spectroscopy of Galactic and Magellanic Clouds Supernova Remnants.- Spectrophotometry of the Optical Emission from RCW103.- Non-Equilibrium Ionization in Puppis A.- Detailed X-Ray Observations of the Cygnus Loop.- A Theoretical Model of the Cygnus Loop and its X-Ray Emission.- The W28 Supernova and the Surrounding Interstellar Medium.- Einstein Observations of the SNRs IC443, W44 and W49B.- The X-Ray Structure of the Supernova Remnant G78.2+2.1.- Radio Observations of Small Diameter Sources in the Direction of Old Supernova Remnants.- High Resolution X-Ray Images of Puppis a and IC 443.- Kinematics of Supernova Remnants in the Galaxy and LMC.- III. Center Filled Morphologies.- Supernova Remnants Resembling the Crab Nebula.- X-Ray Observations of Crab-Like Supernova Remnants.- New High Resolution Radio Observations of 3C10, 3C58 and Part of the Cygnus Loop.- Consequences of a New Distance Determination of 3C58.- The Radio Morphology and Possible Nature of 3C58.- CTB80: Cosmic Collision.- IV. Old Supernova Remnants - Heating of the Interstellar Medium.- Large Scale Features of the Hot Component of the Interstellar Medium.- Spectral Observation of the Soft X-Ray Background and of the North Polar Spur with Solid State Spectrometers.- Possible Contributions of Supernova Remnants to the Soft X-Ray Diffuse Background (0.1 - 1 keV).- HI Shells and Supershells.- Radio Synthesis Maps of Large Supernova Remnants.- Radio Continuum Observations of Large Supernova Remnants.- Are Filaments Cylindrical or Sheet-Like?.- Heating of the Interstellar Medium by Supernova Remnants.- Theoretical Thermal X-Ray Maps of Supernova Remnants in Non-Uniform Media.- The Evolution of Supernova Remnants in a Non-Uniform Medium: The Fate of an Evolving Ob Association.- V. Compact Objects Associated with Supernova Remnants, Pulsars and Neutron Stars.- StarsSupernova Remnants with Central Pulsars.- Supernova Remnants with Compact X-Ray Sources.- A. MSH 15-52.- B. The Crab Nebula.- Observations of G320.4-1.2 and Speculations on Supernova Remnant Morphology.- Precessing Jet Model for the Supernova Remnant G109.1-1.0.- Comparison of Radio and X-Ray Observations of SNR G109.1-1.0.- The Pulsation Period and Possible Orbit of 1E2259+586.- Radio Observations of the Supernova Remnant CTB109 (G109.2-1.0).- X-Ray Studies of SS433.- Structure of Extended Radio Emission in W50 and its Relation to SS 433.- Radio Interferometer Observations of Compact Sources in Supernova Remnants.- X-Rays from Radio Pulsars: The Portable Supernova Remnants.- On the Association between Pulsars and Supernova Remnants.- A Search for Pulsars Associated with Supernova Remnants in the Galaxy and the Magellanic Clouds.- Strong Waves from Pulsars and Morphologies in SNRs.- Three New Pulsars Near Supernova Remnants.- X-Ray and Gamma-Ray Radiation from the Switched-Off Radiopulsars.- Evolution of Neutron Stars in Young Supernova Remnants.- Neutron Star Cooling: Effects of Envelope Physics.- VI. Supernova Remnants in Other Galaxies.- Chemical Abundances in the Interstellar Medium of Galaxies from Spectrophotometry of Supernova Remnants.- The X-Ray Properties of Supernova Remnants in the Large Magellanic Cloud.- Soft X-Ray Observation of Supernova Remnants in the Small Magellanic Cloud.- Optical Studies of Supernova Remnants in the Magellanic Clouds.- The Radio Properties of SNRS in the Magellanic Clouds.- Optical Observations of Four Balmer-Dominated Supernova Remnants in the Large Magellanic Cloud.- Optical Observations of SNRS and Ring Nebulae in the LMC.- N49: The Site of a Gamma-Ray Burst. Preliminary Results from X-Ray Observations.- X-Ray, Optical and UV Observations of the Young Supernova Remnant in the Irregular Galaxy NGC 4449.- Luminous Supernova Remnant Candidates in M82 and the Physical Properties of the Variable Radio Source 41-9+58.- The X-Ray Emission of a Clumpy Irregular Galaxy from Thousands of Supernova Remnants?.- A Catalogue of Galactic Supernova Remnants.- Object Index.