Outer Magnetospheric Boundaries Cluster Results
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Outer Magnetospheric Boundaries Cluster Results
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Author : Goetz Paschmann
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-06-28
Outer Magnetospheric Boundaries Cluster Results written by Goetz Paschmann 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 2006-06-28 with Science categories.
8. 8 Boundary Layer Structure and Detached Plasma 305 8. 8. 1 Background 305 8. 8. 2 Structure inside the boundary layer 306 8. 8. 3 Observation of detached plasma 308 8. 8. 4 Summary 309 8. 9 Summary and Conclusions 310 References 312 9. CLUSTER AT THE MAGNETOSPHERIC CUSPS 321 9. 1 Introduction 321 9. 1. 1 Previous work 323 9. 1. 2 How Cluster investigates the cusp 325 9. 2 The High-Altitude Cusp 326 9. 2. 1 March 17, 2001 328 9. 2. 2 February 4, 2001 332 9. 2. 3 February 13, 2001 337 9. 2. 4 Statistical survey 340 9. 2. 5 Waves and turbulence 343 9. 3 The Mid-Altitude Cusp 352 9. 3. 1 Structure: Case study 352 9. 3. 2 Structure: Statistical survey 354 9. 3. 3 Ionospheric ions 354 9. 3. 4 Mid-altitude signatures of the LLBL 357 9. 4 Discussion 359 References 360 10. MAGNETOPAUSE PROCESSES 367 10. 1 Magnetopause Reconnection 368 10. 1. 1 Intermittent vs. quasi-steady reconnection 368 10. 1. 2 Component vs. anti-parallel reconnection 382 10. 1. 3 Tailward-of-the-cusp reconnection 385 10. 1. 4 Quantitative tests of reconnection occurrence 388 10. 1. 5 Summary 391 10. 2 Kelvin-Helmholtz Instability at the Flank Magnetopause 391 10. 3 Microphysics of Magnetopause Processes 396 10. 3. 1 Collisionless generalised Ohm’s law 397 10. 3. 2 Ion di?usion region observations 398 10. 3. 3 High-frequency waves 402 10. 3. 4 Lower-hybrid waves 405 10. 3.
Outer Magnetospheric Boundaries Cluster Results
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Author : Goetz Paschmann
language : en
Publisher: Springer Science & Business Media
Release Date : 2005-12-07
Outer Magnetospheric Boundaries Cluster Results written by Goetz Paschmann 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 2005-12-07 with Science categories.
When the stream of plasma emitted from the Sun (the solar wind) encounters Earth's magnetic field, it slows down and flows around it, leaving behind a cavity, the magnetosphere. The magnetopause is the surface that separates the solar wind on the outside from the Earth's magnetic field on the inside. Because the solar wind moves at supersonic speed, a bow shock must form ahead of the magnetopause that acts to slow the solar wind to subsonic speeds. Magnetopause, bow shock and their environs are rich in exciting processes in collisionless plasmas, such as shock formation, magnetic reconnection, particle acceleration and wave-particle interactions. They are interesting in their own right, as part of Earth's environment, but also because they are prototypes of similar structures and phenomena that are ubiquitous in the universe, having the unique advantage that they are accessible to in situ measurements. The boundaries of the magnetosphere have been the target of direct in-situ measurements since the beginning of the space age. But because they are constantly moving, changing their orientation, and undergoing evolution, the interpretation of single-spacecraft measurements has been plagued by the fundamental inability of a single observer to unambiguously distinguish spatial from temporal changes. The boundaries are thus a prime target for the study by a closely spaced fleet of spacecraft. Thus the Cluster mission, with its four spacecraft in a three-dimensional configuration at variable separation distances, represents a giant step forward. The present 20th volume of the ISSI Space Science Series represents the first synthesis of the exciting new results obtained in the first few years of the Cluster mission.
The Earth S Plasmasphere
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Author : Fabien Darrouzet
language : en
Publisher: Springer Science & Business Media
Release Date : 2009-08-21
The Earth S Plasmasphere written by Fabien Darrouzet 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 2009-08-21 with Science categories.
James L. Burch·C. Philippe Escoubet Originally published in the journal Space Science Reviews, Volume 145, Nos 1–2, 1–2. DOI: 10. 1007/s11214-009-9532-7 © Springer Science+Business Media B. V. 2009 The IMAGE and CLUSTER spacecraft have revolutionized our understanding of the inner magnetosphere and in particular the plasmasphere. Before launch, the plasmasphere was not a prime objective of the CLUSTER mission. In fact, CLUSTER might not have ever observed this region because a few years before the CLUSTER launch (at the beginning of the 1990s), it was proposed to raise the perigee of the orbit to 8 Earth radii to make multipoint measu- ments in the current disruption region in the tail. Because of ground segment constraints, this proposal did not materialize. In view of the great depth and breadth of plasmaspheric research and numerous papers published on the plasmasphere since the CLUSTER launch, this choice certainly was a judicious one. The fact that the plasmasphere was one of the prime targets in the inner magnetosphere for IMAGE provided a unique opportunity to make great strides using the new and comp- mentary measurements of the two missions. IMAGE, with sensitive EUV cameras, could for the rst time make global images of the plasmasphere and show its great variability d- ing storm-time. CLUSTER, with four-spacecraft, could analyze in situ spatial and temporal structures at the plasmapause that are particularly important in such a dynamic system.
Past Present And Future Of Multispacecraft Measurements For Space Physics
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Author : Joseph E. Borovsky
language : en
Publisher: Frontiers Media SA
Release Date : 2025-03-19
Past Present And Future Of Multispacecraft Measurements For Space Physics written by Joseph E. Borovsky and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-03-19 with Science categories.
Multi-spacecraft scientific missions for space physics have been flown since the 1960s with early missions such as IMP, VELA, Helios, and ISEE. Much of the success in understanding the Earth's magnetosphere and ionosphere and the physics and evolution of the solar wind has come from multi-spacecraft measurements. Multi-spacecraft measurements have been essential for studying the transport of plasma and energy, the motion of boundaries, the evolution of structure, the growth of instabilities, particle injections, and the rudiments of cross-scale coupling, and they have allowed accurate determinations of the orientation of plasma boundaries and current sheets, the geometry of magnetic field structures, the remote connections along magnetic field lines, and the direction of plasma-wave vectors. Multispacecraft missions continue into the present including planned constellation-type missions plus the use of the Heliophysics Great Observatory, a collection of data from diverse spacecraft throughout the heliosphere. Modern four-spacecraft volumetric measurements are enabling the measurement of the gradients, divergences and curls of the vector fields.
Multiscale Magnetospheric Processes
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Author : Gurbax S. Lakhina
language : en
Publisher:
Release Date : 2008
Multiscale Magnetospheric Processes written by Gurbax S. Lakhina and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Magnetosphere categories.
Annales Geophysicae 2001
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Author :
language : en
Publisher:
Release Date : 2007
Annales Geophysicae 2001 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Astrophysics categories.
Annales Geophysicae
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Author :
language : en
Publisher:
Release Date : 2008
Annales Geophysicae written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Geophysics categories.
The Magnetospheric Cusps Structure And Dynamics
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Author : Theodore A. Fritz
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-02-23
The Magnetospheric Cusps Structure And Dynamics written by Theodore A. Fritz 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 2006-02-23 with Science categories.
This collection of papers will address the question "What is the Magnetospheric Cusp?" and what is its role in the coupling of the solar wind to the magnetosphere as well as its role in the processes of particle transport and energization within the magnetosphere. The cusps have traditionally been described as narrow funnel-shaped regions that provide a focus of the Chapman-Ferraro currents that flow on the magnetopause, a boundary between the cavity dominated by the geomagnetic field (i.e., the magnetosphere) and the external region of the interplanetary medium. Measurements from a number of recent satellite programs have shown that the cusp is not confined to a narrow region near local noon but appears to encompass a large portion of the dayside high-latitude magnetosphere and it appears that the cusp is a major source region for the production of energetic charged particles for the magnetosphere. Audience: This book will be of interest to space science research organizations in governments and industries, the community of Space Physics scientists and university departments of physics, astronomy, space physics, and geophysics.
Dayside Magnetosphere Interactions
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Author : Qiugang Zong
language : en
Publisher: John Wiley & Sons
Release Date : 2020-03-13
Dayside Magnetosphere Interactions written by Qiugang Zong 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 2020-03-13 with Science categories.
Exploring the processes and phenomena of Earth's dayside magnetosphere Energy and momentum transfer, initially taking place at the dayside magnetopause, is responsible for a variety of phenomenon that we can measure on the ground. Data obtained from observations of Earth’s dayside magnetosphere increases our knowledge of the processes by which solar wind mass, momentum, and energy enter the magnetosphere. Dayside Magnetosphere Interactions outlines the physics and processes of dayside magnetospheric phenomena, the role of solar wind in generating ultra-low frequency waves, and solar wind-magnetosphere-ionosphere coupling. Volume highlights include: Phenomena across different temporal and spatial scales Discussions on dayside aurora, plume dynamics, and related dayside reconnection Results from spacecraft observations, ground-based observations, and simulations Discoveries from the Magnetospheric Multiscale Mission and Van Allen Probes era Exploration of foreshock, bow shock, magnetosheath, magnetopause, and cusps Examination of similar processes occurring around other planets The American Geophysical Union promotes discovery in Earth and space science for the benefit of humanity. Its publications disseminate scientific knowledge and provide resources for researchers, students, and professionals. Find out more about this book from this Q&A with the editors
New Research On Astrophysics Neutron Stars And Galaxy Clusters
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Author : Louis V. Ross
language : en
Publisher: Nova Publishers
Release Date : 2007
New Research On Astrophysics Neutron Stars And Galaxy Clusters written by Louis V. Ross and has been published by Nova Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Science categories.
Book & CD. Humans have probably always strived to understand the world around them. And the heavens have drawn rapt attention- - perhaps because they seem so close but aren't. Understanding of the physical and chemical properties, origin, and evolution of the celestial bodies has been propelled forward by the startling advances in space science, computers and miniaturisation. Astrophysics can claim to be one of the most exciting fields in science in terms of leaps forward. This book brings together leading research from around the world on astrophysics, neutron stars and galaxy clusters.