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Cosmic Ray Diffusion
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Book Synopsis Nonlinear Cosmic Ray Diffusion Theories by : Andreas Shalchi
Download or read book Nonlinear Cosmic Ray Diffusion Theories written by Andreas Shalchi and published by Springer Science & Business Media. This book was released on 2009-06-04 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: If charged particles move through the interplanetary or interstellar medium, they interact with a large-scale magnetic ?eld such as the magnetic ?eld of the Sun or the Galactic magnetic ?eld. As these background ?elds are usually nearly constant in time and space, they can be approximated by a homogeneous ?eld. If there are no additional ?elds, the particle trajectory is a perfect helix along which the par- cle moves at a constant speed. In reality, however, there are turbulent electric and magnetic?elds dueto the interstellaror solar wind plasma. These ?elds lead to sc- tering of the cosmic rays parallel and perpendicular to the background ?eld. These scattering effects, which usually are of diffusive nature, can be described by s- tial diffusion coef?cients or, alternatively, by mean free paths. The knowledge of these parameters is essential for describing cosmic ray propagation as well as d- fusive shock acceleration. The latter process is responsible for the high cosmic ray energies that have been observed. The layout of this book is as follows. In Chap. 1, the general physical scenario is presented. We discuss fundamental processes such as cosmic ray propagation and acceleration in different systems such as the solar system or the interst- lar space. These processes are a consequence of the interaction between charged cosmic particles and an astrophysical plasma (turbulence). The properties of such plasmas are therefore the subject of Chap. 2.
Book Synopsis Cosmic Ray Diffusion in the Galaxy and Diffuse Gamma Emission by : Daniele Gaggero
Download or read book Cosmic Ray Diffusion in the Galaxy and Diffuse Gamma Emission written by Daniele Gaggero and published by Springer Science & Business Media. This book was released on 2012-07-09 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: The original work presented in this thesis constitutes an important contribution to modern Cosmic Ray (CR) physics, and comes during one of the most exciting periods of this field. The first part introduces a new numerical code (DRAGON) to model the CR propagation in our Galaxy. The code is then used to perform a combined analysis of CR data, making it possible to determine their propagation properties with unprecedented accuracy. The second part is dedicated to a theoretical interpretation of the recent crucial experimental results on cosmic electron and positron spectra (PAMELA, Fermi-LAT experiments). Using the tools developed in the first part of the thesis, the author convincingly argues for the existence of a new spectral component, which could arise either from local astrophysical sources, such as pulsars, or from Dark Matter annihilation or decay. This thesis is a highly advanced work; the methods, analysis and results are clearly and carefully presented. This work is set to become an important reference document for any future work in this area.
Book Synopsis Cosmic Ray Diffusion by : Thomas Joseph Birmingham
Download or read book Cosmic Ray Diffusion written by Thomas Joseph Birmingham and published by . This book was released on 1975 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topics discussed and summarized are: cosmic ray measurements as related to diffusion theory; quasi-linear theory, nonlinear theory, and computer simulation of cosmic ray pitch-angle diffusion; and magnetic field fluctuation measurements as related to diffusion theory.
Book Synopsis Cosmic Ray Astrophysics by : Reinhard Schlickeiser
Download or read book Cosmic Ray Astrophysics written by Reinhard Schlickeiser and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the first part, the book gives an up-to-date summary of the observational data. In the second part, it deals with the kinetic description of cosmic ray plasma. The underlying diffusion-convection transport equation, which governs the coupling between cosmic rays and the background plasma, is derived and analyzed in detail. In the third part, several applications of the solutions of the transport equation are presented and how key observations in cosmic ray physics can be accounted for is demonstrated.
Book Synopsis Galactic Diffusion of Cosmic Rays by : Phyllis Harriet (Stoliar) Greifinger
Download or read book Galactic Diffusion of Cosmic Rays written by Phyllis Harriet (Stoliar) Greifinger and published by . This book was released on 1954 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cosmic Ray Interactions, Propagation, and Acceleration in Space Plasmas by : Lev Dorman
Download or read book Cosmic Ray Interactions, Propagation, and Acceleration in Space Plasmas written by Lev Dorman and published by Springer Science & Business Media. This book was released on 2006-09-02 with total page 877 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chapter 1 briefly describes the main properties of space plasmas and primary CR. Chapter 2 considers the problem of CR propagation in space plasmas described by the kinetic equation and different types of diffusion approximations. Chapter 3 is devoted to CR non-linear effects in space plasmas caused by CR pressure and CR kinetic stream instabilities with the generation of Alfvèn turbulence. In Chapter 4 different processes of CR acceleration in space plasmas are considered. The book ends with a list providing more than 1,300 full references, a discussion on future developments and unsolved problems, as well as Object and Author indexes.
Book Synopsis Astrophysics of Cosmic Rays by : Veniamin Sergeevich Berezinskiĭ
Download or read book Astrophysics of Cosmic Rays written by Veniamin Sergeevich Berezinskiĭ and published by Elsevier Science & Technology. This book was released on 1990 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to the astrophysics of cosmic rays, especially the origin of the cosmic rays observed on Earth. The problem of the propagation and acceleration of cosmic rays in the interstellar medium and, in general, in the galaxy is discussed. Topics of gamma- and X-ray astronomy and of high-energy neutrino astronomy related to cosmic rays are also discussed. Summaries of the observational and experimental results are given."
Book Synopsis The Origin of Cosmic Rays by : V. L. Ginzburg
Download or read book The Origin of Cosmic Rays written by V. L. Ginzburg and published by Elsevier. This book was released on 2013-10-22 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Origin of Cosmic Rays examines the astrophysical phenomena that cause cosmic rays. The title details the concerns in the study of tracing the sources of cosmic rays. The text presents the primary cosmic rays on earth, and then proceeds to tackling ling the cosmic magnetic bremsstrahlung radio emission and cosmic rays in the universe. Next, the selection deals with the motion of cosmic rays in the interstellar medium and the origin of cosmic rays. The text also talks about the quantitative galactic theory of the origin of cosmic rays. The book will be of great use to astronomers, astrophysicists, and scientists who studies phenomena that involves celestial bodies.
Book Synopsis Foundations of Cosmic Ray Astrophysics by : F.A. Aharonian
Download or read book Foundations of Cosmic Ray Astrophysics written by F.A. Aharonian and published by IOS Press. This book was released on 2024-04-23 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Enrico Fermi Schools, a cultural initiative promoted by the Italian Physical Society (SIF), were initiated in 1953 in a period that marked the beginnings of what is now called cosmic ray astrophysics. Indeed, the very first edition of the School focused on the contribution of cosmic ray physics to the laws of elementary particle physics. Almost seventy years later, another School has been focusing on the foundations of cosmic ray astrophysics, and this book contains the lectures presented as Course 208 of the prestigious International School of Physics Enrico Fermi, Foundations of Cosmic Ray Astrophysics, held in Varenna, Italy from 23 to 29 June 2022. Topics covered in the book range from particle acceleration to cosmic ray transport, and from radiation processes to feedback of cosmic rays in galaxy formation. In particular, a thorough description of the physics of cosmic ray transport in turbulent magnetic fields, and of the production of magnetic perturbations in the presence of cosmic ray gradients is provided, both these phenomena being essential in describing particle acceleration at shocks and the transport of cosmic rays within the galaxy. The transport of cosmic rays in different environments is also discussed. This area of research has received an extraordinary boost in recent times, thanks to the now unprecedented accuracy of observations, and to the possibility of testing new ideas and complex scenarios offered by recent developments in numerical simulation, and the book will be of interest to all those working in the field of high energy astrophysics.
Book Synopsis Composition and Origin of Cosmic Rays by : M.M. Shapiro
Download or read book Composition and Origin of Cosmic Rays written by M.M. Shapiro and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the NATO Advanced Study Institute, Ettore Majorana Centre, Erice, Sicily, Italy, June 20-30, 1982
Download or read book Origin of Cosmic Rays written by G. Setti and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cosmic radiation was discovered by Hess in 1912 but its origin is still the subject of much controversy and considerable study. For several decades most workers in the cosmic ray field were interested in the Nuclear Physical aspect of the particle beam and many important dis coveries were made, notably the identification of the positron, the muon, the pion and the strange particles. More recently however, em phasis has changed to the Astrophysical aspect both with re8ard to the origin of the radiation and to its relation with the other radiation fields. Mindful of the increasing importance of the Astrophysical facets of the subject the Cosmic Ray Commission of IUPAP approached the High Energy Astrophysics Commission of the IAU with the suggestion of a joint Symposium on Cosmic Ray Origin. The plan was to bring together workers in all the various astronomical fields - from Radio, through Optical to Gamma Rays - with Cosmic Ray physicists and to fully explore the various interrelations. The approach was received with enthusiasm and this book contains the proceedings of the ensuing Symposium, (styled IUPAP/ IAU Symposium No. 94) which was held in Bologna from 11th - 14th June 1980. Virtually all the papers presented are reproduced here. The Scientific Organizing Committee chose the invited speakers whose papers formed the major scientific component of the meeting. Additional short contributed papers were also called for and very brief 2-page resumes (which have not been refereed) are given in the proceedings.
Book Synopsis Topics in Cosmic-ray Astrophysics by : Michael DuVernois
Download or read book Topics in Cosmic-ray Astrophysics written by Michael DuVernois and published by Nova Biomedical Books. This book was released on 1999 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents recent findings on charged cosmic rays, primarily nuclei, from galactic and extra-galactic sources. Chapters on new and proposed instruments and techniques examine projects such as the SilEye and the PAMELA apparatus for the search of antimatter in cosmic rays. Papers on cosmic ray models look at nonlinear phenomena in diffusive shock acceleration, and propagation of cosmic rays in the galaxy. Material on cosmic ray sources and ultra-high energy cosmic rays examine source composition and its relation to the interstellar matter, and cosmic ray mass composition at highest energies. The editor is a researcher at Pennsylvania State University. Annotation copyrighted by Book News, Inc., Portland, OR
Book Synopsis Selected Papers on Cosmic Ray Origin Theories by : Stephen Rosen
Download or read book Selected Papers on Cosmic Ray Origin Theories written by Stephen Rosen and published by . This book was released on 1969 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Magnetic Fields in Diffuse Media by : Alexander Lazarian
Download or read book Magnetic Fields in Diffuse Media written by Alexander Lazarian and published by Springer. This book was released on 2014-11-14 with total page 627 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents the current knowledge of magnetic fields in diffuse astrophysical media. Starting with an overview of 21st century instrumentation to observe astrophysical magnetic fields, the chapters cover observational techniques, origin of magnetic fields, magnetic turbulence, basic processes in magnetized fluids, the role of magnetic fields for cosmic rays, in the interstellar medium and for star formation. Written by a group of leading experts the book represents an excellent overview of the field. Nonspecialists will find sufficient background to enter the field and be able to appreciate the state of the art.
Book Synopsis Some Observational and Theoretical Aspects of Cosmic-ray Diffusion by : Elsa de Cea del Pozo
Download or read book Some Observational and Theoretical Aspects of Cosmic-ray Diffusion written by Elsa de Cea del Pozo and published by . This book was released on 2011 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cosmic Rays in the Heliosphere by : L.A. Fisk
Download or read book Cosmic Rays in the Heliosphere written by L.A. Fisk and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: In every scientific discipline there are milestones - periods of significant accom plishment when it is appropriate to pause and summarize the state of the field. Such is the case for the study of the behavior of cosmic rays in the heliosphere. We are just passing through solar minimum conditions, when the heliosphere has a well-ordered and relatively simple configuration. We have been fortunate to have an array of spacecraft - unprecedented in the history of space exploration and unlikely to be repeated for generations - to provide comprehensive measurements of cosmic rays throughout the heliosphere. Ulysses has completed its historic first exploration of the heliosphere at high heliographic latitudes. Pioneer and Voyager have been exploring the outer heliosphere. The durable IMP-8 and now the WIND spacecraft have provided detailed baseline measurements at Earth. Concurrently, there has been a steady improvement in theoretical understanding of cosmic ray behavior through the use of ever more sophisticated numerical models. This milestone in cosmic ray studies was celebrated with a Workshop on Cos mic Rays in the Heliosphere which was convened by L. A. Fisk, J. R. Jokipii.
Book Synopsis Gamma-ray and Neutrino Signatures of Galactic Cosmic-ray Accelerators by : Silvia Celli
Download or read book Gamma-ray and Neutrino Signatures of Galactic Cosmic-ray Accelerators written by Silvia Celli and published by Springer Nature. This book was released on 2019-12-17 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses three “hot” topics concerning the general problem of the origin of Galactic cosmic rays, namely (1) the acceleration, propagation, and radiation of particles in supernova remnants; (2) very high energy neutrinos from the Galactic Center; and (3) the potential held by the next-generation gamma-ray and neutrino detectors CTA and KM3NeT for studying extended non-thermal sources in the Galaxy. The topics are intrinsically connected to determining the nature (“hadronic or leptonic?”) of gamma-ray emissions from young and middle-aged supernova remnants and the search for cosmic-ray PeVatrons. The results and conclusions provided here are based on extensive analytical and numerical simulations, which are formulated and presented in a straightforward format that can be readily used in the interpretations of gamma-ray and neutrino observations, as well as for confident predictions for future measurements.
