: J. L. Linsky, V. V. Izmodenov, E. Möbius, R. Steiger
: J.L. Linsky, V.V. Izmodenov, E. Mobius, Rudolf von Steiger
: From the Outer Heliosphere to the Local Bubble Comparisons of New Observations with Theory
: Springer-Verlag
: 9781441902474
: 1
: CHF 132.70
:
: Astronomie
: English
: 478
: Wasserzeichen/DRM
: PC/MAC/eReader/Tablet
: PDF

Knowledge about the outer heliosphere and the interstellar medium, which were long treated as two separate fields, has improved dramatically over the past 25 years as a consequence of recent developments: The discovery of interstellar pickup ions and neutral helium inside the heliosphere, the determination of the interstellar hydrogen distribution in the heliosphere obtained using backscattered solar Lyman-alpha radiation, the prediction and subsequent detection of the hydrogen wall just outside of the heliopause, the development of detailed global models for the interaction of solar wind plasma with the interstellar medium, and most recently, direct in-situ plasma and field measurements inside of the heliosheath. At the same time, our understanding of the nearby galactic environment, including the composition and dynamics of the warm gas clouds and hot gas in the local bubble, has benefited greatly from absorption-line spectroscopy using nearby stars as background sources and dynamic modeling. The present volume provides a synopsis of these developments organised into seven sections: Dominant physical processes in the termination shock and heliosheath, three-dimensional shape and structure of the dynamic heliosphere, relation of the plasmas and dust inside and outside of the heliosphere, origin and properties of the very local interstellar medium, energy and pressure equilibria in the local bubble, physical processes in the multiphase interstellar medium inside of the local bubble, and the roles that magnetic fields play in the outer heliosphere and the local bubble. The last theme is probably the most basic of all as magnetic fields play important roles in most of the phenomena discussed here. The volume concludes with four papers providing the 'big picture' by looking at the time evolution of both the heliosphere and the local bubble, looking beyond the local bubble, and finally addressing the challenges in modeling the interface between the two media.

Foreword8
Dedication to Dr. George Gloeckler11
The Solar Wind in the Outer Heliosphere13
Introduction13
Solar Wind Evolution15
Effects of the Neutral CHISM on the Solar Wind17
The Termination Shock17
Anomalous Cosmic Rays23
Summary24
Acknowledgements24
References24
Constraints on the Structure of the Heliospheric Interface Based on Lyalpha Absorption Spectra27
Introduction27
The Heliospheric Absorption Detections28
Absorption Dependence on the ISM Magnetic Field30
Extended Tail Models33
Acknowledgements36
References36
Influence of the Interstellar Magnetic Field and Neutrals on the Shape of the Outer Heliosphere37
Introduction38
Heliospheric Asymmetry Induced by the ISMF39
Sources of the 2-3 kHz radio emission45
Conclusions46
Acknowledgements47
References47
Confronting Observations and Modeling: The Role of the Interstellar Magnetic Field in Voyager 1 and 2 Asymmetries49
Introduction50
Observational Evidences for Asymmetries52
Interstellar Magnetic Field Direction53
Model54
Squashed Solar System: Global Asymmetries54
Discussion and Conclusions58
Neutral H Atoms58
Solar Cycle59
Energetic-Particle Mediated Shock59
Acknowledgements59
References60
The Dynamic Heliosphere: Outstanding Issues62
Introduction63
On the Origin of Anomalous Cosmic Rays64
Observations of ACRs Near the Termination Shock64
Classic (Drift) Paradigm66
Shock Geometry and Longitudinal Effects67
Dynamical Effects68
Acceleration in the Heliosheath69
Variability of the Termination Shock Region and Heliosheath: Solar Cycle and Transient Effects70
Propagation of a Solar Wind Velocity Pulse through the Heliosphere71
Instability of the Heliopause75
The Effects of the Solar Activity Cycle75
Connecting ENAs with Lyalpha Absorption Measurements77
A Comparison between the Heliosheath and Other Sheaths in Space80
Ion Distributions81
Sheath Size and Structure82
Waves82
Outlook: Heliosheath Thickness and Processes at the Heliopause83
Estimating the Thickness of the Heliosheath83
Energetic Particles at the Heliopause84
Conclusions85
Acknowledgements85
References85
The Heliospheric Magnetic Field and Its Extension to the Inner Heliosheath89
The Global Heliospheric Magnetic Field: the Parker Formulation90
Deviations from the Parker Model of the Heliospheric Magnetic Field91
Structures in the Heliospheric Magnetic Field: Solar Cycle Effects93
The Solar Corona, the Heliospheric Magnetic Field and the Heliospheric Current Sheet94
Corotating Interaction Regions98
``Interplanetary'' Coronal Mass Ejections through the Heliosphere102
The Magnetic Field in the Heliosheath105
The Magnetic-Field Sector Structure in the Heliosheath106
Application to Observations108
Magnetic Fluctuations in the Heliosheath109
Summary110
Acknowledgements111
References111
Pickup Ion Acceleration at the Termination Shock and in th