Collisionless Shocks In Space Plasmas
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Collisionless Shocks In Space Plasmas
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Author : David Burgess
language : en
Publisher: Cambridge University Press
Release Date : 2015-07-30
Collisionless Shocks In Space Plasmas written by David Burgess and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-07-30 with Science categories.
An engaging introduction to collisionless shocks in space plasmas, presenting a complete review, from first principles to current research.
Collisionless Shocks In Space Plasmas
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Author : David Burgess (Astrophysicist)
language : en
Publisher:
Release Date : 2015
Collisionless Shocks In Space Plasmas written by David Burgess (Astrophysicist) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with SCIENCE categories.
Physics Of Collisionless Shocks
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Author : André Balogh
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-01-04
Physics Of Collisionless Shocks written by André Balogh and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-01-04 with Science categories.
The present book provides a contemporary systematic treatment of shock waves in high-temperature collisionless plasmas as are encountered in near Earth space and in Astrophysics. It consists of two parts. Part I develops the complete theory of shocks in dilute hot plasmas under the assumption of absence of collisions among the charged particles when the interaction is mediated solely by the self-consistent electromagnetic fields. Such shocks are naturally magnetised implying that the magnetic field plays an important role in their evolution and dynamics. This part treats subcritical shocks which dissipate flow energy by generating anomalous resistance or viscosity. The main emphasis is, however, on super-critical shocks where the anomalous dissipation is insufficient to retard the upstream flow. These shocks, depending on the direction of the upstream magnetic field, are distinguished as quasi-perpendicular and quasi-parallel shocks which exhibit different behaviours, reflecting particles back upstream and generating high electromagnetic wave intensities. Particle acceleration and turbulence at such shocks become possible and important. Part II treats planetary bow shocks and the famous Heliospheric Termination shock as examples of two applications of the theory developed in part I.
Ion Trajectories At Collisionless Shocks In Space Plasmas
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Author : Philip Ryan Newman
language : en
Publisher:
Release Date : 2012
Ion Trajectories At Collisionless Shocks In Space Plasmas written by Philip Ryan Newman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
Physics Of Collisionless Shocks
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Author :
language : en
Publisher: Springer
Release Date : 2013-01-04
Physics Of Collisionless Shocks written by and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-01-04 with Collisionless plasmas categories.
Report Of Hakone Meeting On Space Plasma Physics And Collisionless Shocks
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Author :
language : ja
Publisher:
Release Date : 1966
Report Of Hakone Meeting On Space Plasma Physics And Collisionless Shocks written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with categories.
A Collisionless Shock Wave Experiment
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Author :
language : en
Publisher:
Release Date : 1995
A Collisionless Shock Wave Experiment written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.
Collisionless shock waves are a very important heating mechanism for plasmas and are commonly found in space and astrophysical environments. Collisionless shocks were studied in the laboratory more than 20 years ago, and more recently in space via in situ satellite measurements. The authors propose a new laboratory shock wave experiment to address unresolved issues related to the differences in the partition of plasma heating between electrons and ions in space and laboratory plasmas, which can have important implications for a number of physical systems.
Laser Produced Plasmas As Drivers Of Quasi Parallel Collisionless Shock Formation In The Laboratory
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Author : Peter Ver Bryck Heuer
language : en
Publisher:
Release Date : 2020
Laser Produced Plasmas As Drivers Of Quasi Parallel Collisionless Shock Formation In The Laboratory written by Peter Ver Bryck Heuer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.
Quasi-parallel collisionless shocks are objects of considerable interest in space and astrophysics, most notably as possible sites of cosmic ray acceleration. Such shocks occur naturally in systems such as supernova remnants and planetary bow shocks, where the complex and turbulent structures they form are commonly observed by spacecraft. However, \textit{in situ} spacecraft measurements have some inherent limitations, such as a moving reference frame and non-repeatable measurements. Generating a quasi-parallel collisionless shock in a repeatable, well-diagnosed laboratory environment could therefore improve our understanding of their formation and structure. The quasi-parallel collisionless shocks observed in space and astrophysics are far too large to fit in a laboratory, but scaled versions of these systems can be created using smaller, denser plasmas with similar dimensionless parameters. However, quasi-parallel collisionless shocks are particularly challenging to scale to a feasible experiment. The shock formation process is mediated by several electromagnetic ion/ion beam instabilities which require long length scales ($>500$ ion-inertial lengths) to grow, so an experiment must include a long magnetized background plasma. This background plasma must be overlapped over the same length by a highly super-Alfv\'enic beam plasma. Matching the dimensionless parameters of the shocks observed in space sets demanding requirements on the densities of both plasmas as well as the background magnetic field strength. Laser-produced plasmas (LPPs) provide a promising beam plasma source (a ``driver'') for such experiments. A recent experimental campaign has been conducted at UCLA to investigate the potential of LPPs as drivers of quasi-parallel collisionless shocks. These experiments combine one of two high-energy lasers with the magnetized background plasma of the Large Plasma Device (LAPD) to drive the electromagnetic ion/ion beam instabilities responsible for shock formation. The experiments have observed electromagnetic waves consistent with the very early stages of quasi-parallel shock formation. These waves are similar to the ultra-low frequency (ULF) waves observed by spacecraft upstream of the Earth's quasi-parallel bow shock. At present, the amplitudes of the waves generated by these experiments are too low ($dB/B_0 \sim 0.01$) to fully form a quasi-parallel shock. The wave amplitudes observed in these experiments are low because the conditions for beam instability growth are only met in a small region near the laser target. Outside of this region, decreasing LPP density due to velocity dispersion and cross-field transport terminates the wave growth and consequently the shock formation process. Future experiments will require technical innovations to expand this growth region in order to produce larger-amplitude waves. Promising approaches including trains of laser pulses and heating electrons in the background plasma to reduce collisional cross-field transport. Along with comparisons to analytic theory and simulations, the results of the current experiments can inform the design of future laboratory quasi-parallel shock experiments.
Characterizing Space Plasmas
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Author : George K. Parks
language : en
Publisher: Springer
Release Date : 2018-07-26
Characterizing Space Plasmas written by George K. Parks and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-26 with Science categories.
This didactic book uses a data-driven approach to connect measurements made by plasma instruments to the real world. This approach makes full use of the instruments’ capability and examines the data at the most detailed level an experiment can provide. Students using this approach will learn what instruments can measure, and working with real-world data will pave their way to models consistent with these observations. While conceived as a teaching tool, the book contains a considerable amount of new information. It emphasizes recent results, such as particle measurements made from the Cluster ion experiment, explores the consequences of new discoveries, and evaluates new trends or techniques in the field. At the same time, the author ensures that the physical concepts used to interpret the data are general and widely applicable. The topics included help readers understand basic problems fundamental to space plasma physics. Some are appearing for the first time in a space physics textbook. Others present different perspectives and interpretations of old problems and models that were previously considered incontestable. This book is essential reading for graduate students in space plasma physics, and a useful reference for the broader astrophysics community.
Shock Waves In Collisionless Plasmas
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Author : Derek A. Tidman
language : en
Publisher: John Wiley & Sons
Release Date : 1971
Shock Waves In Collisionless Plasmas written by Derek A. Tidman and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Science categories.