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Particle Acceleration At Travelling Shocks In The Heliosphere
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Book Synopsis Particle Acceleration at Travelling Shocks in the Heliosphere by :
Download or read book Particle Acceleration at Travelling Shocks in the Heliosphere written by and published by . This book was released on 2020 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energetic particle transport -- Interplanetary shocks -- Diffusive shock acceleration -- Coronal mass ejections -- Corotating interaction regions -- Solar wind -- Stochastic differential equations -- Heliosphere.
Book Synopsis Cosmic Winds and the Heliosphere by : Jack Randolph Jokipii
Download or read book Cosmic Winds and the Heliosphere written by Jack Randolph Jokipii and published by University of Arizona Press. This book was released on 1997-10 with total page 1060 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contributors examine the physics of wind origin and physical phenomena in winds, including heliospheric shocks, magnetohydrodynamic turbulence, and kinetic phenomena--and their interactions with surrounding media. Contributions range from studies of the interstellar cloud surrounding the solar system to solar wind interaction with comets.
Book Synopsis Collisionless Shocks in the Heliosphere by : Robert G. Stone
Download or read book Collisionless Shocks in the Heliosphere written by Robert G. Stone and published by American Geophysical Union. This book was released on 1985 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 35. Violent expansions of the solar corona cause transient shock waves which propagate outward from the sun at hundreds to thousands of kilometers per second; simple solar wind velocity gradients at the surface of the sun lead to high-speed streams overtaking slower streams, forming corotating shocks; and steady state supermagnetosonic solar wind flow past objects such as the planets lead to standing bow shocks. However, the solar wind plasma is so hot and tenuous that charged particle Coulomb collisions produce negligible thermalization or dissipation on scale sizes less than 0.1 AU. The irreversible plasma heating by these shocks is accomplished by wave-particle interactions driven by plasma instabilities. Hence these shocks are described as "collisionless."
Book Synopsis Physics of the Heliosphere by : Jacob Heerikhuisen
Download or read book Physics of the Heliosphere written by Jacob Heerikhuisen and published by AIP Conference Proceedings / A. This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The conference proceedings cover physical processes in the heliosphere, from the solar atmosphere, through the interplanetary medium to the interface between the solar wind and the interstellar medium. Topics include coronal mass ejections, shocks, turbulence, particle acceleration, and neutral atoms.
Book Synopsis Physics of Collisionless Shocks by : André Balogh
Download or read book Physics of Collisionless Shocks written by André Balogh and published by Springer Science & Business Media. This book was released on 2013-01-04 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Theoretical and Observational Analysis of Particle Acceleration Mechanisms at Astrophysical Shocks by : Edward Lawrence Lever
Download or read book Theoretical and Observational Analysis of Particle Acceleration Mechanisms at Astrophysical Shocks written by Edward Lawrence Lever and published by . This book was released on 2011 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: We analytically and numerically investigate the viability of Shock Surfing as a pre-injection mechanism for Diffusive Shock Acceleration, believed to be responsible for the production of Cosmic Rays. We demonstrate mathematically and from computer simulations that four critical conditions must be satisfied for Shock Surfing to function; the shock ramp must be narrow, the shock front must be smooth, the magnetic field angle must be very nearly perpendicular and, finally, these conditions must persist without interruption over substantial time periods and spatial scales. We quantify these necessary conditions, exhibit predictive functions for velocity maxima and accelerated ion fluxes based on observable shock parameters, and show unequivocally from current observational evidence that all of these necessary conditions are violated at shocks within the heliosphere, at the heliospheric Termination Shock, and also at Supernovae.
Book Synopsis Acceleration and Propagation in the Heliosphere by :
Download or read book Acceleration and Propagation in the Heliosphere written by and published by . This book was released on 2005 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heliospheric energetic particles represent a mixture of populations. Sites of original energization of those particles range from solar flares through coronal and interplanetary shocks to distant heliospheric and even galactic sources. Although increasingly sophisticated methods of measuring their energy spectra, composition, charge state, temporal variation and anisotropy help in distinguishing those populations, most studies on particle acceleration and propagation are based on measurements that cannot make such fine distinctions. The lack of clear-cut separation of populations is also reflected in the somewhat ambiguous classification of SN papers in ICRCs. "Solar emissions" and "Galactic cosmic rays in the heliosphere" appear reasonably well separated topics (although Galactic and Anomalous CR could be more appropriate, and space weather as part of the galactic CR topic could he questioned). Acceleration and propagation issues, however, can be only rather artificially separated from the above two. As it happened during this conference, the pre-assigned rapporteur for the "Acceleration and propagation" topic was unable to participate, and the other two rapporteurs for SH topics kindly agreed to report on most papers in the borderline range. Thus we report here only on a relatively small number of papers that could be classified into three general topics: a) Shocks and solar energetic particles; b) Solar energetic particle propagation; c) Radiation environment at Mars.
Book Synopsis Solar Dynamics and its Effects on the Heliosphere and Earth by : Daniel Baker
Download or read book Solar Dynamics and its Effects on the Heliosphere and Earth written by Daniel Baker and published by Springer Science & Business Media. This book was released on 2007-11-24 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume helps the reader to understand the ways and means of how dynamical phenomena are generated at the Sun, how they travel through the Heliosphere, and how they affect Earth. It provides an integrated account of the three principal chains of events all the way from the Sun to Earth: the normal solar wind, coronal mass ejections, and solar energetic particles.
Book Synopsis Physics of the Outer Heliosphere by : S. Grzedzielski
Download or read book Physics of the Outer Heliosphere written by S. Grzedzielski and published by Elsevier. This book was released on 2013-10-22 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first volume in the new COSPAR Colloquia series which will provide a forum for an in-depth discussion on selective topics of importance to the international community. The International Heliospheric Study (IHS) was initially approved by COSPAR in 1982 when it was anticipated that the study would centre on the ESA/NASA Ulysses spacecraft. This mission was delayed until October 1990, but it was decided to commence the study in 1986 in order to exploit the existence of the Pioneer 10 and 11 and the Voyager 1 and 2 spacecraft in the outer heliosphere. The primary purpose of Physics of the Outer Heliosphere is to study the three-dimensional structure of the solar wind and interplanetary magnetic field carried by it, the propagation of energetic solar particles throughout the heliosphere and the modulation of galactic cosmic rays by the heliosphere. This volume provides information for scientists interested in spectroscopic studies of the local interstellar medium, galactic and solar cosmic ray populations in the outer heliosphere and also plasma and magnetic field aspects of the distant solar wind.
Book Synopsis Collisionless Shocks in Space Plasmas by : David Burgess
Download or read book Collisionless Shocks in Space Plasmas written by David Burgess and published by Cambridge University Press. This book was released on 2015-07-30 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shock waves are an important feature of solar system plasmas, from the solar corona out to the edge of the heliosphere. This engaging introduction to collisionless shocks in space plasmas presents a comprehensive review of the physics governing different types of shocks and processes of particle acceleration, from fundamental principles to current research. Motivated by observations of planetary bow shocks, interplanetary shocks and the solar wind termination shock, it emphasises the physical theory underlying these shock waves. Readers will develop an understanding of the complex interplay between particle dynamics and the electric and magnetic fields that explains the observations of in situ spacecraft. Written by renowned experts in the field, this up-to-date text is the ideal companion for both graduate students new to heliospheric physics and researchers in astrophysics who wish to apply the lessons of solar system shocks to different astrophysical environments.
Book Synopsis The Outer Heliosphere: The Next Frontiers by : E. Marsch
Download or read book The Outer Heliosphere: The Next Frontiers written by E. Marsch and published by Elsevier. This book was released on 2001-09-19 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: The eleventh COSPAR colloquium The Outer Heliosphere: The Next Frontiers was held in Potsdam, Germany, from 24-28 July, 2000, and is the second dedicated to this subject after the first one held in Warsaw, Poland in 1989.Roughly a century has passed after the first ideas by Oliver Lodge, George Francis Fitzgerald and Kristan Birkeland about particle clouds emanating from the Sun and interacting with the Earth environment. Only a few decades after the formulation of the concepts of a continuous solar corpuscular radiation by Ludwig Bierman and a solar wind by Eugene Parker, heliospheric physics has evolved into an important branch of astrophysical research. Numerous spacecraft missions have increased the knowledge about the heliosphere tremendously. Now, at the beginning of a new millenium it seems possible, by newly developed propulasion technologies to send a spacecraft beyond the boundaries of the heliosphere. Such an Interstellar Proce will start the in-situ exploration of interstellar space and, thus, can be considered as the first true astrophysical spacecraft. The year 2000 appeared to be a highly welcome occassion to review the achievements since the last COSPAR Colloquia 11 years ago, to summarize the present developments and to give new impulse for future activities in heliospheric research.
Book Synopsis Particle Acceleration Processes, Shockwaves, Nucleosyntheses and Cosmic Rays by : COSPAR. Plenary Meeting
Download or read book Particle Acceleration Processes, Shockwaves, Nucleosyntheses and Cosmic Rays written by COSPAR. Plenary Meeting and published by . This book was released on 1984 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Energetic Particles in the Heliosphere by : George M. Simnett
Download or read book Energetic Particles in the Heliosphere written by George M. Simnett and published by Springer. This book was released on 2016-12-01 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph traces the development of our understanding of how and where energetic particles are accelerated in the heliosphere and how they may reach the Earth. Detailed data sets are presented which address these topics. The bulk of the observations are from spacecraft in or near the ecliptic plane. It is timely to present this subject now that Voyager-1 has entered the true interstellar medium. Since it seems unlikely that there will be a follow-on to the Voyager programme any time soon, the data we already have regarding the outer heliosphere are not going to be enhanced for at least 40 years.
Download or read book NASA Reference Publication written by and published by . This book was released on 1977 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Collisionless Shocks in the Heliosphere by : Bruce T. Tsurutani
Download or read book Collisionless Shocks in the Heliosphere written by Bruce T. Tsurutani and published by . This book was released on 1983 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Space Physics by : May-Britt Kallenrode
Download or read book Space Physics written by May-Britt Kallenrode and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 487 pages. Available in PDF, EPUB and Kindle. Book excerpt: Observations and physical concepts are interwoven to give basic explanations of phenomena and also show the limitations in these explanations and identify some fundamental questions. Compared to conventional plasma physics textbooks this book focuses on the concepts relevant in the large-scale space plasmas. It combines basic concepts with current research and new observations in interplanetary space and in the magnetospheres. Graduate students and young researchers starting to work in this special field of science, will find the numerous references to review articles as well as important original papers helpful to orientate themselves in the literature. Emphasis is on energetic particles and their interaction with the plasma as examples for non-thermal phenomena, shocks and their role in particle acceleration as examples for non-linear phenomena. This second edition has been updated and extended. Improvements include: the use of SI units; addition of recent results from SOHO and Ulysses; improved treatment of the magnetosphere as a dynamic phenomenon; text restructured to provide a closer coupling between basic physical concepts and observed complex phenomena.
Book Synopsis Physics of the Inner Heliosphere II by : Rainer Schwenn
Download or read book Physics of the Inner Heliosphere II written by Rainer Schwenn and published by Springer. This book was released on 1991-07-30 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
