Fast Solar Wind Driven By Parametric Decay Instability And Alfven Wave Turbulence PDF Download
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Author | : Munehito Shoda |
Publisher | : Springer Nature |
Total Pages | : 94 |
Release | : 2021-04-13 |
Genre | : Science |
ISBN | : 9811610304 |
Download Fast Solar Wind Driven by Parametric Decay Instability and Alfvén Wave Turbulence Book in PDF, ePub and Kindle
This book discusses key theoretical aspects concerning the formation of the solar wind: the most essential building block in the heliosphere, in which planets orbit. To understand the influence of solar activity on planetary magnetospheres and atmospheres, we need to first understand the origin of the solar wind, which is still under debate. This book presents the outcomes of state-of-the-art numerical simulations of solar wind acceleration, including the first three-dimensional simulation of the turbulence-driven solar wind model. One of the book’s goals is to include compressional effects in the dynamics of solar wind turbulence; accordingly, it discusses parametric decay instability in detail. Several key aspects that are relevant to the Parker Solar Probe observations are also discussed. Given its scope, the book plays a key role in bridging the gap between the theory of magnetohydrodynamic turbulence and current/future in-situ observations of the solar wind. This book is based on the Ph.D. thesis by the author, which won the 2019 International Astronomical Union Division E Ph.D. prize.
Author | : Roberto Bruno |
Publisher | : Springer |
Total Pages | : 270 |
Release | : 2016-10-07 |
Genre | : Science |
ISBN | : 3319434403 |
Download Turbulence in the Solar Wind Book in PDF, ePub and Kindle
This book provides an overview of solar wind turbulence from both the theoretical and observational perspective. It argues that the interplanetary medium offers the best opportunity to directly study turbulent fluctuations in collisionless plasmas. In fact, during expansion, the solar wind evolves towards a state characterized by large-amplitude fluctuations in all observed parameters, which resembles, at least at large scales, the well-known hydrodynamic turbulence. This text starts with historical references to past observations and experiments on turbulent flows. It then introduces the Navier-Stokes equations for a magnetized plasma whose low-frequency turbulence evolution is described within the framework of the MHD approximation. It also considers the scaling of plasma and magnetic field fluctuations and the study of nonlinear energy cascades within the same framework. It reports observations of turbulence in the ecliptic and at high latitude, treating Alfvénic and compressive fluctuations separately in order to explain the transport of mass, momentum and energy during the expansion. Further, existing models are compared with direct observations in the heliosphere. The problem of self-similar and anomalous fluctuations in the solar wind is then addressed using tools provided by dynamical system theory and discussed on the basis of available models and observations. The book highlights observations of Yaglom’s law in solar wind turbulence, which is one of the most important findings in fully developed turbulence and directly related to the long-lasting and still unsolved problem of solar wind plasma heating. Lastly, it includes a short chapter dedicated to the kinetic range of fluctuations, which has recently been receiving more attention from the space plasma community, since this is inherently related to turbulent energy dissipation and consequent plasma heating. It particularly focuses on the nature and role of the fluctuations populating this frequency range, and discusses several model predictions and recent observational findings in this context.
Author | : Dieter Biskamp |
Publisher | : Cambridge University Press |
Total Pages | : 313 |
Release | : 2003-07-31 |
Genre | : Science |
ISBN | : 1139441671 |
Download Magnetohydrodynamic Turbulence Book in PDF, ePub and Kindle
This book presents an introduction to, and modern account of, magnetohydrodynamic (MHD) turbulence, an active field both in general turbulence theory and in various areas of astrophysics. The book starts by introducing the MHD equations, certain useful approximations and the transition to turbulence. The second part of the book covers incompressible MHD turbulence, the macroscopic aspects connected with the different self-organization processes, the phenomenology of the turbulence spectra, two-point closure theory, and intermittency. The third considers two-dimensional turbulence and compressible (in particular, supersonic) turbulence. Because of the similarities in the theoretical approach, these chapters start with a brief account of the corresponding methods developed in hydrodynamic turbulence. The final part of the book is devoted to astrophysical applications: turbulence in the solar wind, in accretion disks, and in the interstellar medium. This book is suitable for graduate students and researchers working in turbulence theory, plasma physics and astrophysics.
Author | : Rainer Schwenn |
Publisher | : Springer Science & Business Media |
Total Pages | : 360 |
Release | : 2013-06-29 |
Genre | : Science |
ISBN | : 3642753647 |
Download Physics of the Inner Heliosphere II Book in PDF, ePub and Kindle
Physics of the Inner Heliosphere gives for the first time a comprehensive and complete summary of our knowledge of the inner solar system. Using data collected over more than 11 years by the HELIOS twin solar probes, one of the most successful ventures in unmanned space exploration, the authors have compiled six extensive reviews of the physical processes of the inner heliosphere and their relation to the solar atmosphere. Researchers and advanced students in space and plasma physics, astronomy, and solar physics will be surprised to see just how closely the heliosphere is tied to, and how sensitively it depends on, the sun. Volume 2 deals with particles, waves, and turbulence, with chapters on: - magnetic clouds - interplanetary clouds - the solar wind plasma and MHD turbulence - waves and instabilities - energetic particles in the inner solar system
Author | : Eric Priest |
Publisher | : Cambridge University Press |
Total Pages | : 581 |
Release | : 2014-04-07 |
Genre | : Science |
ISBN | : 0521854717 |
Download Magnetohydrodynamics of the Sun Book in PDF, ePub and Kindle
This advanced textbook reviews the complex interaction between the Sun's plasma atmosphere and its magnetic field.
Author | : C.-Y. Tu |
Publisher | : Springer Science & Business Media |
Total Pages | : 214 |
Release | : 2013-06-29 |
Genre | : Science |
ISBN | : 9401585415 |
Download MHD Structures, Waves and Turbulence in the Solar Wind Book in PDF, ePub and Kindle
This is the first book to give a comprehensive overview of recent observational and theoretical results on solar wind structures and fluctuations and magnetohydrodynamic waves and turbulence, preference being given to phenomena in the inner heliosphere. Emphasis is placed on the progress made in the past decade in the understanding of the nature and origin of especially small-scale, compressible and incompressible fluctuations. Turbulence models describing the spatial transport and spectral transfer of the fluctuations in the inner heliosphere are discussed. Intermittency of solar wind fluctuations and their statistical distributions are investigated. Studies of the heating and acceleration effects of the turbulence on the background wind are critically surveyed. Finally, open questions concerning the origin, nature and evolution of the fluctuations are listed, and perspectives for future research are outlined. The book is for graduate students and researchers in the field. Other target groups are scientists and professionals interested in space plasma physics and/or MHD turbulence.
Author | : D. S. Spicer |
Publisher | : |
Total Pages | : 200 |
Release | : 1992 |
Genre | : Science |
ISBN | : |
Download Electromechanical Coupling of the Solar Atmosphere Book in PDF, ePub and Kindle
Author | : E. Marsch |
Publisher | : Elsevier |
Total Pages | : 740 |
Release | : 2016-04-20 |
Genre | : Science |
ISBN | : 1483287807 |
Download Solar Wind Seven Book in PDF, ePub and Kindle
The third COSPAR Colloquium entitled Solar Wind Seven was held in Goslar, Germany in September 1991. Twenty-two countries were represented by scientists, many of whom are leading experts in the area of heliospheric physics. The Proceedings reflect current research on solar wind and particularly emphasizes the source regions. The main topics covered encompass Coronal Heating and Solar Wind Acceleration; Large-Scale Structure of the Interplanetary Medium; Minor Ions, Neutrals and Cosmic Rays in the Heliosphere; Kinetic Physics, Waves and Turbulence and finally Heliospheric Dynamic Phenomena.
Author | : Victor Montagud-Camps |
Publisher | : Springer Nature |
Total Pages | : 123 |
Release | : 2019-10-11 |
Genre | : Science |
ISBN | : 3030303837 |
Download Turbulent Heating and Anisotropy in the Solar Wind Book in PDF, ePub and Kindle
This book presents two important new findings. First, it demonstrates from first principles that turbulent heating offers an explanation for the non-adiabatic decay of proton temperature in solar wind. Until now, this was only proved with reduced or phenomenological models. Second, the book demonstrates that the two types of anisotropy of turbulent fluctuations that are observed in solar wind at 1AU originate not only from two distinct classes of conditions near the Sun but also from the imbalance in Alfvén wave populations. These anisotropies do not affect the overall turbulent heating if we take into account the relation observed in solar wind between anisotropy and Alfvén wave imbalance. In terms of the methods used to obtain these achievements, the author shows the need to find a very delicate balance between turbulent decay and expansion losses, so as to directly solve the magnetohydrodynamic equations, including the wind expansion effects.
Author | : M. Dryer |
Publisher | : Springer Science & Business Media |
Total Pages | : 543 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 9400991002 |
Download Solar and Interplanetary Dynamics Book in PDF, ePub and Kindle
Informal discussions in 1977 among a number of scientists asso ciated with solar and interplanetary physics revealed a need for a dialogue between the two often-divergent groups. It was clear that the latter group was dependent essentially on the sun for its raison d'etre. On the other hand it was also clear that the former group could benefit in its search for insight vis-a-vis solar activity by looking beyond the shell of the inner corona. Needless to add that the combined solar/interplanetary topic is relevant to astrophysics when one considers stellar winds and binary star flows. It was felt, there fore, that a symposium was essential to bring together, for the first time, leading solar and interplanetary physicists from the interna tional community to discuss and record herein their own research. The fundamental physical processes underlying our own capricious star's activity can be understood only by the coupling of solar and interplan etary topics in an intimate observational and theoretical structure. This book, intended for active research scientists and advanced grad uate students, is an important step in this direction. The background of solar and interplanetary dynamics is provided in Part I (The Life History of Coronal Structures and Fields) and Part II (Coronal and Interplanetary Responses to Long Time Scale Phenomena).