DUST IN SPACE AND COMETS

Advances in Space Research, 4(9),
Edited by: G.E. Morfill, C.T. Russell, M.S. Hanner
316pp, Pergamon Press, Oxford, 1984

Table of Contents

PREFACE

The first indication that interplanetary dust might interact with planetary magnetospheres, and yield observable consequences, came from analysis of the data from the HE0S dust detector in 1978/79. It was suggested that electrostatic breakup of fluffy interplanetary aggregates possibly of cometary origin were responsible for the large increase in micron-sized particle fluxes within ~10 Earth radii.

The Voyager missions to the ringed planets have since provided the basic observations for a large number of phenomena concerned with dust-magnetosphere interactions. Until then, planetary rings were regarded as purely gravitational phenomena, whereas we now know that many micron-sized particles exist in the rings (produced by e.g. grinding and impacts) and that these also experience electromagnetic and plasma drag forces. Of particular interest in recent studies have been the basic physical processes in "dusty" plasmas, the application to dust particles ejected from Io's volcanoes, the formation of Jupiter's tenuous ring and halo, in Saturn's magnetosphere the dynamics and evolution of the E-ring, the spokes and the possible rnagneto-gravitational effects on narrow ringlets.

This meeting is the first attempt to coordinate under a common heading of "Dust-Magnetosphere Interactions" a number of different disciplines:

The aim of the meeting was to bring the different communities together, to determine the current status of the research being done in the various fields and to ascertain the role played by solids in planetary magnetospheres either as sources and sinks of plasma, dynamically, mechanically etc. and finally to highlight the physics of "dusty" plasmas, which is very different from ordinary plasma physics and from gravitational dynamics alone.

My Co-organizer, Chris Russell, and I enjoyed the meeting, in spite of the fact that the New York rain was responsible for a great deal of last minute rescheduling and activity. We wish to take this opportunity to thank all the contributors and the participants, who helped to make this meeting such a success.

G.E. Morfill C.T. Russell

CONTENTS

Chapter 1 -- DUST-MAGNETOSPHERE INTERACTIONS (Mtg B1)

Page 1: Preface

Page 5: The Interplanetary Dust Environment beyond 1 AU and in the Vicinity af the Ringed Planets (Tutorial Talk); H. Fechtig

Page 13: Particle Erosion Mechanisms and Mass Redistribution in Saturn's Rings; R. H. Durisen

Page 23: Mass Loading of Planetary Magnetospheres by Rocky Satellites-I: Production of Rocky Ejecta; M. Alexander, P. Anz, D. Lyons, W. Tanner, Y. L. Chen and J. A. M. McDonnell

Page 27: Mass Loading of Planetary Atmospheres by Rocky Satellites-II: Transport and Enhanced Lifetimes of Satellite Ejecta in Planetary Magnetospheres; M. Alexander, P. Anz, T. Hyde, A. Hargrave, L. Lodhi, S. Lodhi and W. Tanner

Page 31: Modification of Planetary Atmospheres by Material from the Rings; .S. K. Atreya

Page 41: Sputtering Processes: Erosion and Chemical Change; R. E. Johnson, L. J. Lanzerotti and W. L. Brown

Page 53: Stability and Mass flow in Saturn's Rings; W.-H. Ip

Page 63: Dust in Magnetised Plasmas: Basic Theory and Some Applications; T. G. Northrop and G. E. Morfill

Page 75: Charges on Dust Particles; O. Havnes

Page 85: Effects of Electrostatic Forces on the Vertical Structure of Planetary Rings; O. Havnes and G. E. Morfill

Page 91: On the Importance of Fluff on the Electric Behaviour of Cosmic Grains; J.-P. J. Lafon and J. M. Millet

Page 95: Orbit Perturbation: Evolution of a Keplerian Disk; R. Pellat, P. Barge, P. Horning and J. M. Millet

Page 107: Dust Motion in Jupiter's Tilted Magnetic Field; L. Schaffer and J. A. Burns

Page 111: Entry of Dust Particles into Planetary Magnetospheres; D. A. Mendis

Page 121: Planetary Rings; J. A. Burns

Page 135: Formation of Jupiter's Rings; E. Grun

Page 137: Formation on Saturn's Spokes; C. K. Goertz

Page 143: Kinematics of Saturn's Spokes; E. Grun, G. W. Garneau, R. J. Terrile, T. V. Johnson and G. E. Morfill

Page 149: Saturn's E Ring; T. W. Hill

Chapter-2 -- HALLEY UPDATE (Mtg B2)

Page 161: Introduction

Section 1. Physical Processes in Comets

The Gas Coma

Page 165: Aeronomical Processes in Cometary Atmospheres: The Carbon Compounds' Puzzle; M. C. Festou

Page 177: Ultraviolet Spectroscopy of Cometary Comae: An Update; P.D. Feldman

Page 185: A New Calibration of the Semi-Empirical Photometric Theory for Halley and Other Comets; R. L. Newburn, Jr

The Dust Coma;

Page 189: A Comparison of the Dust Properties in Recent Periodic Comets; M. S. Hanner

Page 197: IRAS Observations of Cometary Dust; R.G. Walker and H.H. Aumann

Page 203: Recent Infrared Observations of Comets with the UKIRT and IRAS; J. C. Zarnecki, N. Eaton, J. A. M. McDonnell, A. J. Meadows, W. C. Carey and G. H. MacDonald

Page 207: Heterogeneous Grain Model in Comets; T. Mukai and S. Mukai

Page 211: A Fine Mist of Very Small Comet Dust Particles; J. M. Greenberg

Page 213: Dust Environment Models for Comet P/Halley: Support for Targeting of the GIOTTO S/C; J. Fertig and G. H. Schwehm

Page 217 :Heteorgeneous Grain Morphologies and Acceleration Mechanisms in Cometary Coma Dust Dynamics: Mass Envelope Dispersion; W. C. Carey, J. A. M. McDonnell, C. S. Welch and J. C. Zarnecki

Page 221: Thermal Models of the Nucleus Thermal Modeling of Halley's Comet; P. R. Weissman and H. H. Kieffer

Page 225: Thermal Model and Thermo-Mechanical Stresses in Cometary Nuclei; E. Kuhrt and D. Mohlmann

Page 229: Plasma Processes and Solar Wind interaction Plasma Processes in Cometary Atmospheres; A. S. Galeev and A. S. Lipatov

Page 239: Comet-Solar Wind Interactions: A Dusty Point of View; W.-H. Ip

Page 249: Numerical Model of Time-Dependent Hydrodynamic Flows with Mass Loading; N. I. Komle and H. I. M. Lichtenegger

Page 253: Energetic Positive Ions in the Cometary "Foreshock" Region; V. Formisano and E. Amata

Page 255: Interplanetary Field Enhancements in the Solar Wind: Evidence for Cometesimals at 0.72 and 1.0 AU?; M. R. Arghavani, C. T. Russell and J. G. Luhmann

Section 2. Planned Observations of Halley

Page 263: Space Missions to Halley's Comet

Page 265: Comet Halley Observations to Date; J. Rahe

Page 273: The Instrument IKS and Its Calibration; J.-P Bibring, S. Cazes, J. Charra, M. Combes, N. Coron, B. Cougrand, J.-F. Crifo, J. Crovisier, C. Emerich, T. Encrenaz, R. Gispert, B. Gondet, G. Guyot, D. Harduin, J.-M. Lamarre, G. Levanti, C. Maurel, D. Parisot, F. Rocard, P. Salvetat and A. Soufflot

Page 277: The Infrared Imaging Channel of the IKS Instrument for Detection of Comet Halley Nucleus; J. M. Lamarre. B. Gondet, R. Gispert, C. Emerich and F. Rocard

Page 283: Oriented Platform for the VEGA Probe to Halley's Comet, Position Detection, Working Program; B. Valnicek and J. Recek

Page 287: A Spectral Photopolarimeter for GIOTTO: Halley Optical Probe Experiment; A. C. Levasseur-Regourd, J. L. Bertaux, R. Dumont, M. C. Festou, R. H. Giese, F. Giovane, P. Lamy, A. Llebaria and J. L. Weinberg

Page 291: First Calibration Measurements with the Dust Impact Detector DIDSY-IPM; E. Grun, E. Bussoletti, A. Minafra, H. Kuczera and J. A. M. McDonnell

Page 297: The Impact of Dust Grains on Fast Flyby Spacecraft: Momentum Multiplication, Measurements and Theory; J. A. M. McDonnell, M. Alexander, D. Lyons, W. Tanner, P. Anz, T. Hyde, A.-L. Chen, T. J. Stevenson and S. T. Evans

Page 303: Radio Occultation Experiments with Comet Halley; M. K. Bird, P. Edenhofer, H. Porsche and H. Volland

Page 307: EUV Observations of Comet Halley; H. W. Ripken, H. J. Fahr and G. Lay

Page 311: Proposed Optical Observations of Comet Halley; S. Rath, D. Jadhav, P. Choudhary and A. Tillu

Page 315: Author Index


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