Mhd Flows In Compact Astrophysical Objects

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MHD Flows in Compact Astrophysical Objects

Vasily S. Beskin
MHD Flows in Compact Astrophysical Objects Book PDF

Author : Vasily S. Beskin
Publisher : Springer Science & Business Media
Page : 425 pages
File Size : 47,8 Mb
Release : 2009-12-08
Category : Science
ISBN : 9783642012907

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MHD Flows in Compact Astrophysical Objects by Vasily S. Beskin Pdf

Accretion flows, winds and jets of compact astrophysical objects and stars are generally described within the framework of hydrodynamical and magnetohydrodynamical (MHD) flows. Analytical analysis of the problem provides profound physical insights, which are essential for interpreting and understanding the results of numerical simulations. Providing such a physical understanding of MHD Flows in Compact Astrophysical Objects is the main goal of this book, which is an updated translation of a successful Russian graduate textbook. The book provides the first detailed introduction into the method of the Grad-Shafranov equation, describing analytically the very broad class of hydrodynamical and MHD flows. It starts with the classical examples of hydrodynamical accretion onto relativistic and nonrelativistic objects. The force-free limit of the Grad-Shafranov equation allows us to analyze in detail the physics of the magnetospheres of radio pulsars and black holes, including the Blandford-Znajek process of energy extraction from a rotating black hole immersed in an external magnetic field. Finally, on the basis of the full MHD version of the Grad-Shafranov equation the author discusses the problems of jet collimation and particle acceleration in Active Galactic Nuclei, radio pulsars, and Young Stellar Objects. The comparison of the analytical results with numerical simulations demonstrates their good agreement. Assuming that the reader is familiar with the basic physical and mathematical concepts of General Relativity, the author uses the 3+1 split approach which allows the formulation of all results in terms of physically clear language of three dimensional vectors. The book contains detailed derivations of equations, numerous exercises, and an extensive bibliography. It therefore serves as both an introductory text for graduate students and a valuable reference work for researchers in the field.

MHD Flows in Compact Astrophysical Objects

Vasily S. Beskin
MHD Flows in Compact Astrophysical Objects Book PDF

Author : Vasily S. Beskin
Publisher : Springer
Page : 425 pages
File Size : 44,5 Mb
Release : 2009-12-10
Category : Science
ISBN : 3642012892

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MHD Flows in Compact Astrophysical Objects by Vasily S. Beskin Pdf

Accretion flows, winds and jets of compact astrophysical objects and stars are generally described within the framework of hydrodynamical and magnetohydrodynamical (MHD) flows. Analytical analysis of the problem provides profound physical insights, which are essential for interpreting and understanding the results of numerical simulations. Providing such a physical understanding of MHD Flows in Compact Astrophysical Objects is the main goal of this book, which is an updated translation of a successful Russian graduate textbook. The book provides the first detailed introduction into the method of the Grad-Shafranov equation, describing analytically the very broad class of hydrodynamical and MHD flows. It starts with the classical examples of hydrodynamical accretion onto relativistic and nonrelativistic objects. The force-free limit of the Grad-Shafranov equation allows us to analyze in detail the physics of the magnetospheres of radio pulsars and black holes, including the Blandford-Znajek process of energy extraction from a rotating black hole immersed in an external magnetic field. Finally, on the basis of the full MHD version of the Grad-Shafranov equation the author discusses the problems of jet collimation and particle acceleration in Active Galactic Nuclei, radio pulsars, and Young Stellar Objects. The comparison of the analytical results with numerical simulations demonstrates their good agreement. Assuming that the reader is familiar with the basic physical and mathematical concepts of General Relativity, the author uses the 3+1 split approach which allows the formulation of all results in terms of physically clear language of three dimensional vectors. The book contains detailed derivations of equations, numerous exercises, and an extensive bibliography. It therefore serves as both an introductory text for graduate students and a valuable reference work for researchers in the field.

Solar and Astrophysical Magnetohydrodynamic Flows

Kanaris Tsinganos
Solar and Astrophysical Magnetohydrodynamic Flows Book PDF

Author : Kanaris Tsinganos
Publisher : Springer Science & Business Media
Page : 770 pages
File Size : 40,9 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400902657

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Solar and Astrophysical Magnetohydrodynamic Flows by Kanaris Tsinganos Pdf

Modern observations, including recent ones with the Hubble Space Telescope, have revealed that the Universe is replete with plasma outflows from all kinds of objects, ranging from stars in all their variety to galaxies. In this masterly survey of plasma astrophysics, written by leading practitioners, the first 15 articles in Part I deal with the use of the MHD approach in several key problems of solar plasma, such as magnetoconvection and magnetic field generation, sunspots and coronal loops, magnetic nonequilibrium and coronal heating, coronal mass ejections, the acceleration of the solar wind, and stellar winds across the Main Sequence. The following 16 articles of Part II deal with the use of the same MHD approach in several central and puzzling aspects of more distant astrophysical plasmas, such as the dynamics of the interstellar medium, collimated outflows from young stellar objects and accretion disks, molecular outflows and jets associated with enigmatic binaries and symbiotic stars, relativistic flows associated with superluminal microquasars in our own galaxy, astrophysical jets from nearby galaxies, or remote active galactic nuclei and quasars, probably fuelled by supermassive black holes. The emphasis throughout is on the striking underlying similarities in the physics of all these problems. Audience: Indispensable for solar physicists and astrophysics alike. An ideal textbook for graduate students in physics and astrophysics.

Accretion Flows in Astrophysics

Nikolay Shakura
Accretion Flows in Astrophysics Book PDF

Author : Nikolay Shakura
Publisher : Springer
Page : 419 pages
File Size : 44,8 Mb
Release : 2018-10-03
Category : Science
ISBN : 9783319930091

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Accretion Flows in Astrophysics by Nikolay Shakura Pdf

This book highlights selected topics of standard and modern theory of accretion onto black holes and magnetized neutron stars. The structure of stationary standard discs and non-stationary viscous processes in accretion discs are discussed to the highest degree of accuracy analytic theory can provide, including relativistic effects in flat and warped discs around black holes. A special chapter is dedicated to a new theory of subsonic settling accretion onto a rotating magnetized neutron star. The book also describes supercritical accretion in quasars and its manifestation in lensing events. Several chapters cover the underlying physics of viscosity in astrophysical discs with some important aspects of turbulent viscosity generation. The book is aimed at specialists as well as graduate students interested in the field of theoretical astrophysics.

General Relativity, Cosmology and Astrophysics

Jiří Bičák,Tomáš Ledvinka
General Relativity Cosmology and Astrophysics Book PDF

Author : Jiří Bičák,Tomáš Ledvinka
Publisher : Springer
Page : 535 pages
File Size : 45,9 Mb
Release : 2014-06-12
Category : Science
ISBN : 9783319063492

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General Relativity, Cosmology and Astrophysics by Jiří Bičák,Tomáš Ledvinka Pdf

The articles included in this Volume represent a broad and highly qualified view on the present state of general relativity, quantum gravity, and their cosmological and astrophysical implications. As such, it may serve as a valuable source of knowledge and inspiration for experts in these fields, as well as an advanced source of information for young researchers. The occasion to gather together so many leading experts in the field was to celebrate the centenary of Einstein's stay in Prague in 1911-1912. It was in fact during his stay in Prague that Einstein started in earnest to develop his ideas about general relativity that fully developed in his paper in 1915. Approaching soon the centenary of his famous paper, this volume offers a precious overview of the path done by the scientific community in this intriguing and vibrant field in the last century, defining the challenges of the next 100 years. The content is divided into four broad parts: (i) Gravity and Prague, (ii) Classical General Relativity, (iii) Cosmology and Quantum Gravity, and (iv) Numerical Relativity and Relativistic Astrophysics.

Introduction to Black Hole Astrophysics

Gustavo E. Romero,Gabriela S. Vila
Introduction to Black Hole Astrophysics Book PDF

Author : Gustavo E. Romero,Gabriela S. Vila
Publisher : Springer
Page : 318 pages
File Size : 54,5 Mb
Release : 2013-09-14
Category : Science
ISBN : 9783642395963

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Introduction to Black Hole Astrophysics by Gustavo E. Romero,Gabriela S. Vila Pdf

This book is based on the lecture notes of a one-semester course on black hole astrophysics given by the author and is aimed at advanced undergraduate and graduate students with an interest in astrophysics. The material included goes beyond that found in classic textbooks and presents details on astrophysical manifestations of black holes. In particular, jet physics and detailed accounts of objects like microquasars, active galactic nuclei, gamma-ray bursts, and ultra-luminous X-ray sources are covered, as well as advanced topics like black holes in alternative theories of gravity. The author avoids unnecessary technicalities and to some degree the book is self-contained. The reader will find some basic general relativity tools in Chapter 1. The appendices provide some additional mathematical details that will be useful for further study, and a guide to the bibliography on the subject.

Astrophysical Disks

Aleksey M. Fridman,Mikhail Ya. Marov,Ilya G. Kovalenko
Astrophysical Disks Book PDF

Author : Aleksey M. Fridman,Mikhail Ya. Marov,Ilya G. Kovalenko
Publisher : Springer Science & Business Media
Page : 366 pages
File Size : 43,8 Mb
Release : 2006-07-25
Category : Science
ISBN : 9781402043482

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Astrophysical Disks by Aleksey M. Fridman,Mikhail Ya. Marov,Ilya G. Kovalenko Pdf

This book deals with collective and stochastic processes in astrophysical disks involving theory, observations, and the results of modelling. It examines the spiral-vortex structure in galactic and accretion disks, and stochastic and ordered structures in developed turbulence. The book advances the study in this important branch of astrophysics and will benefit professional researchers, lecturers, and graduate students.

The Formation and Disruption of Black Hole Jets

Ioannis Contopoulos,Denise Gabuzda,Nikolaos Kylafis
The Formation and Disruption of Black Hole Jets Book PDF

Author : Ioannis Contopoulos,Denise Gabuzda,Nikolaos Kylafis
Publisher : Springer
Page : 264 pages
File Size : 45,7 Mb
Release : 2014-11-10
Category : Science
ISBN : 9783319103563

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The Formation and Disruption of Black Hole Jets by Ioannis Contopoulos,Denise Gabuzda,Nikolaos Kylafis Pdf

This book reviews the phenomenology displayed by relativistic jets as well as the most recent theoretical efforts to understand the physical mechanisms at their origin. Relativistic jets have been observed and studied in Active Galactic Nuclei (AGN) for about half a century and are believed to be fueled by accretion onto a supermassive black hole at the center of the host galaxy. Since the first discovery of relativistic jets associated with so-called "micro-quasars" much more recently, it has seemed clear that much of the physics governing the relativistic outflows in stellar X-ray binaries harboring black holes and in AGN must be common, but acting on very different spatial and temporal scales. With new observational and theoretical results piling up every day, this book attempts to synthesize a consistent, unified physical picture of the formation and disruption of jets in accreting black-hole systems. The chapters in this book offer overviews accessible not only to specialists but also to graduate students and astrophysicists working in other areas. Covered topics comprise Relativistic jets in stellar systems Launching of AGN jets Parsec-scale AGN jets Kiloparsec-scale AGN jets Black hole magnetospheres Theory of relativistic jets The structure and dynamics of the inner accretion disk The origin of the jet magnetic field X-ray observations, phenomenology, and connection with theory

Compact Objects in Astrophysics

Max Camenzind
Compact Objects in Astrophysics Book PDF

Author : Max Camenzind
Publisher : Springer Verlag
Page : 679 pages
File Size : 49,5 Mb
Release : 2007-02-15
Category : Science
ISBN : 3540257705

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Compact Objects in Astrophysics by Max Camenzind Pdf

Compact objects are an important class of astronomical objects in current research. Supermassive black holes play an important role in the understanding of the formation of galaxies in the early Universe. Old white dwarfs are nowadays used to calibrate the age of the Universe. Mergers of neutron stars and black holes are the sources of intense gravitational waves which will be measured in the next ten years by gravitational wave detectors. Camenzind's Compact Objects in Astrophysics gives a comprehensive introduction and up-to-date overview about the physical processes behind these objects, covering the field from the beginning to most recent results, including all relevant observations. After a presentation of the taxonomy of compact objects, the basic principles of general relativity are given. The author then discusses in detail the physics and observations of white dwarfs and neutron stars (including the most recent equations of state for neutron star matter), the gravitational field of rapidly rotating compact objects, rotating black holes (including ray tracing and black hole magnetospheres), gravitational waves, and the new understanding of accretion processes by means of the magnetorotational instability of accretion disks. This modern treatise of compact object astrophysics uses the 3+1 split approach to Einstein's equations, and to relativistic hydrodynamics and magnetohydrodynamics. In each chapter problems and solutions help deepen the understanding of the subject. Both advanced students and researchers will appreciate this book as an advanced textbook and reference on this fascinating field of astrophysics.

Cosmic Electrodynamics

Gregory D. Fleishman,Igor N. Toptygin
Cosmic Electrodynamics Book PDF

Author : Gregory D. Fleishman,Igor N. Toptygin
Publisher : Springer Science & Business Media
Page : 729 pages
File Size : 48,8 Mb
Release : 2013-03-21
Category : Science
ISBN : 9781461457824

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Cosmic Electrodynamics by Gregory D. Fleishman,Igor N. Toptygin Pdf

This book presents the fundamental concepts of the theory, illustrated by numerous examples of astrophysical applications. Classical concepts are combined with new developments and the authors demarcate what is well established and what is still under debate. To book illustrates how apparently complicated phenomena can be addressed and understood using well-known physical principles and equations within appropriate approximations and simplifications. For this purpose, a number of astrophysical examples are considered in greater detail than what is normally presented in a regular textbook. In particular, a number of nonlinear self-consistent models are considered, which is motivated by the latest observational data and modern theory.

The Beginning and the End

Clément Vidal
The Beginning and the End Book PDF

Author : Clément Vidal
Publisher : Springer
Page : 379 pages
File Size : 51,7 Mb
Release : 2014-05-16
Category : Science
ISBN : 9783319050621

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The Beginning and the End by Clément Vidal Pdf

In this fascinating journey to the edge of science, Vidal takes on big philosophical questions: Does our universe have a beginning and an end or is it cyclic? Are we alone in the universe? What is the role of intelligent life, if any, in cosmic evolution? Grounded in science and committed to philosophical rigor, this book presents an evolutionary worldview where the rise of intelligent life is not an accident, but may well be the key to unlocking the universe's deepest mysteries. Vidal shows how the fine-tuning controversy can be advanced with computer simulations. He also explores whether natural or artificial selection could hold on a cosmic scale. In perhaps his boldest hypothesis, he argues that signs of advanced extraterrestrial civilizations are already present in our astrophysical data. His conclusions invite us to see the meaning of life, evolution and intelligence from a novel cosmological framework that should stir debate for years to come.

Compact Objects in Astrophysics

Max Camenzind
Compact Objects in Astrophysics Book PDF

Author : Max Camenzind
Publisher : Springer Science & Business Media
Page : 679 pages
File Size : 46,6 Mb
Release : 2007-02-24
Category : Science
ISBN : 9783540499121

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Compact Objects in Astrophysics by Max Camenzind Pdf

Modern comprehensive introduction and overview of the physics of White Dwarfs, Neutron Stars and Black Holes, including all relevant observations. Contains a basic introduction to General Relativity, including the modern 3+1 split of spacetime and of Einstein’s equations. The split is used for the first time to derive the structure equations for rapidly rotating neutron stars and Black Holes. Detailed discussions and derivations of current theoretical results. In particular also the most recent equations of state for neutron star matter are explained. Topics , such as colour superconductivity are discussed and used for modelling. A book for graduate students and researchers. Contains exercises and some solutions.

Turbulence and Nonlinear Dynamics in MHD Flows

M. Meneguzzi,A. Pouquet,P.L. Sulem
Turbulence and Nonlinear Dynamics in MHD Flows Book PDF

Author : M. Meneguzzi,A. Pouquet,P.L. Sulem
Publisher : Elsevier
Page : 290 pages
File Size : 55,8 Mb
Release : 2012-12-02
Category : Science
ISBN : 9780444598738

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Turbulence and Nonlinear Dynamics in MHD Flows by M. Meneguzzi,A. Pouquet,P.L. Sulem Pdf

Topics discussed at this international workshop include: magnetic fields in astrophysical flows, slow and fast dynamos, MHD turbulence in space plasmas and in the laboratory, exact solutions to MHD, topology and chaos in MHD, helicity and velocity-magnetic correlations, turbulent reconnection and non-magnetic flows.

Relativistic Astrophysics

Harald Riffert,Hanns Ruder,Hans-Peter Nollert,Friedrich W. Hehl
Relativistic Astrophysics Book PDF

Author : Harald Riffert,Hanns Ruder,Hans-Peter Nollert,Friedrich W. Hehl
Publisher : Springer Science & Business Media
Page : 280 pages
File Size : 45,6 Mb
Release : 2013-06-29
Category : Science
ISBN : 9783663112945

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Relativistic Astrophysics by Harald Riffert,Hanns Ruder,Hans-Peter Nollert,Friedrich W. Hehl Pdf

During the first decades after Einstein had developed his Theory of General Relativity, the main effort was to understand the theory and verify it experimentically. Meanwhile Genral Relativity is one of the experimentally best confirmed theories and has become a powerful tool for the investigation of cosmic processes where strong gravitational fields are involved. This book contains 16 contributions from well-known experts giving a broad overview for non-specialists who want to learn how to purely academic issues like gravitational wave detectors are now put into reality.

Magnetohydrodynamics

Hans Goedbloed,Rony Keppens,Stefaan Poedts
Magnetohydrodynamics Book PDF

Author : Hans Goedbloed,Rony Keppens,Stefaan Poedts
Publisher : Cambridge University Press
Page : 995 pages
File Size : 53,6 Mb
Release : 2019-01-31
Category : Science
ISBN : 9781107123922

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Magnetohydrodynamics by Hans Goedbloed,Rony Keppens,Stefaan Poedts Pdf

An introduction to magnetohydrodynamics combining theory with advanced topics including the applications of plasma physics to thermonuclear fusion and plasma astrophysics.