Astrophysical Disks

Astrophysical Disks PDF Author: Aleksey M. Fridman
Publisher: Springer Science & Business Media
ISBN: 1402043481
Category : Science
Languages : en
Pages : 366

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Book Description
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.

Astrophysical Disks

Astrophysical Disks PDF Author: Aleksey M. Fridman
Publisher: Springer Science & Business Media
ISBN: 1402043481
Category : Science
Languages : en
Pages : 366

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Book Description
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.

Astrophysical Disks

Astrophysical Disks PDF Author: S. F. Dermott
Publisher:
ISBN:
Category : Mathematics
Languages : en
Pages : 360

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Book Description
A companion to earlier volumes (497, 536, 596, 617 and 631) of the Annals, this entry in the nonlinear astronomy series has contributions by most of the acknowledged experts in the field. They write on many topics, all of current interest. As several hold strong opposing views, this is a lively, important and timely publication.

Theory of Accretion Disks

Theory of Accretion Disks PDF Author: F. Meyer
Publisher: Springer Science & Business Media
ISBN: 9400910371
Category : Science
Languages : en
Pages : 471

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Book Description
With the advent of space observatories and modern developments in ground based astronomy and concurrent progress in the theoretical understanding of these observations it has become clear that accretion of material on to compact objects is an ubiquitous mechanism powering very diverse astrophysical sources ranging in size and luminosity by many orders of magnitude. A problem common to these systems is that the material accreted must in general get rid of its angular momentum and this leads to the formation of an Accretion Disk which allows angular momentum re-distribution and converts potential energy into radiation with an efficiency which can be higher than the nuclear burning yield. These systems range in size from quasars and active galactic nuclei to accretion disks around forming stars and the early solar system and to compact binaries such as cataclysmic variables and low-mass X-ray binaries. Other objects that should be mentioned in this context are 88433, the black hole binary candidates, and possibly gamma-ray burst sources. Observations of these systems have provided important constraints for theoretical accretion disk models on widely differing scales, lumi nosities, mass-transfer rates and physical environments.

Accretion Flows in Astrophysics

Accretion Flows in Astrophysics PDF Author: Nikolay Shakura
Publisher: Springer
ISBN: 3319930095
Category : Science
Languages : en
Pages : 419

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Book Description
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.

Accretion Disks and Magnetic Fields in Astrophysics

Accretion Disks and Magnetic Fields in Astrophysics PDF Author: G. Belvedere
Publisher: Springer Science & Business Media
ISBN: 9400924011
Category : Science
Languages : en
Pages : 301

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Book Description
Proceeding of the European Physical Society Study Conference, held in Noto (Sicily), Italy, June 16-20, 1988

Solar System Dynamics

Solar System Dynamics PDF Author: Carl D. Murray
Publisher: Cambridge University Press
ISBN: 1139936158
Category : Science
Languages : en
Pages : 612

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Book Description
The Solar System is a complex and fascinating dynamical system. This is the first textbook to describe comprehensively the dynamical features of the Solar System and to provide students with all the mathematical tools and physical models they need to understand how it works. It is a benchmark publication in the field of planetary dynamics and destined to become a classic. Clearly written and well illustrated, Solar System Dynamics shows how a basic knowledge of the two- and three-body problems and perturbation theory can be combined to understand features as diverse as the tidal heating of Jupiter's moon Io, the origin of the Kirkwood gaps in the asteroid belt, and the radial structure of Saturn's rings. Problems at the end of each chapter and a free Internet Mathematica® software package are provided. Solar System Dynamics provides an authoritative textbook for courses on planetary dynamics and celestial mechanics. It also equips students with the mathematical tools to tackle broader courses on dynamics, dynamical systems, applications of chaos theory and non-linear dynamics.

Theory of Black Hole Accretion Discs

Theory of Black Hole Accretion Discs PDF Author: Marek A. Abramowicz
Publisher: Cambridge University Press
ISBN: 9780521623629
Category : Science
Languages : en
Pages : 310

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Book Description
The first comprehensive and up-to-date review of our new understanding of accretion disks around black holes - with chapters from experts from around the world.

Physical Processes in Circumstellar Disks Around Young Stars

Physical Processes in Circumstellar Disks Around Young Stars PDF Author: Paulo J. V. Garcia
Publisher: University of Chicago Press
ISBN: 0226282295
Category : Science
Languages : en
Pages : 437

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Book Description
Circumstellar disks are vast expanses of dust that form around new stars in the earliest stages of their birth. Predicted by astronomers as early as the eighteenth century, they weren’t observed until the late twentieth century, when interstellar imaging technology enabled us to see nascent stars hundreds of light years away. Since then, circumstellar disks have become an area of intense study among astrophysicists, largely because they are thought to be the forerunners of planetary systems like our own—the possible birthplaces of planets. This volume brings together a team of leading experts to distill the most up-to-date knowledge of circumstellar disks into a clear introductory volume. Understanding circumstellar disks requires a broad range of scientific knowledge, including chemical processes, the properties of dust and gases, hydrodynamics and magnetohydrodynamics, radiation transfer, and stellar evolution—all of which are covered in this comprehensive work, which will be indispensable for graduate students, seasoned researchers, or even advanced undergrads setting out on the study of planetary evolution.

Oscillations of Disks

Oscillations of Disks PDF Author: Shoji Kato
Publisher: Springer
ISBN: 4431562087
Category : Science
Languages : en
Pages : 269

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Book Description
This book presents the current state of research on disk oscillation theory, focusing on relativistic disks and tidally deformed disks. Since the launch of the Rossi X-ray Timing Explorer (RXTE) in 1996, many high-frequency quasiperiodic oscillations (HFQPOs) have been observed in X-ray binaries. Subsequently, similar quasi-periodic oscillations have been found in such relativistic objects as microquasars, ultra-luminous X-ray sources, and galactic nuclei. One of the most promising explanations of their origin is based on oscillations in relativistic disks, and a new field called discoseismology is currently developing. After reviewing observational aspects, the book presents the basic characteristics of disk oscillations, especially focusing on those in relativistic disks. Relativistic disks are essentially different from Newtonian disks in terms of several basic characteristics of their disk oscillations, including the radial distributions of epicyclic frequencies. In order to understand the basic processes of disk oscillations, studies on binary systems are of importance, as they offer valuable information on wave–wave coupling processes in disk oscillations. Accordingly, some characteristics of oscillations in deformed disks are also presented in this book. The book consists of two parts. Points covered in Part I include, for instance, the basic characteristics of disk oscillations, classification of oscillation modes, and trapping of oscillations. In Part II, the focus is mainly on excitation processes of oscillations, while applications to observations are also discussed.

Astrophysics of Planet Formation

Astrophysics of Planet Formation PDF Author: Philip J. Armitage
Publisher: Cambridge University Press
ISBN: 1108356117
Category : Science
Languages : en
Pages : 345

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Book Description
Concise and self-contained, this textbook gives a graduate-level introduction to the physical processes that shape planetary systems, covering all stages of planet formation. Writing for readers with undergraduate backgrounds in physics, astronomy, and planetary science, Armitage begins with a description of the structure and evolution of protoplanetary disks, moves on to the formation of planetesimals, rocky, and giant planets, and concludes by describing the gravitational and gas dynamical evolution of planetary systems. He provides a self-contained account of the modern theory of planet formation and, for more advanced readers, carefully selected references to the research literature, noting areas where research is ongoing. The second edition has been thoroughly revised to include observational results from NASA's Kepler mission, ALMA observations and the JUNO mission to Jupiter, new theoretical ideas including pebble accretion, and an up-to-date understanding in areas such as disk evolution and planet migration.