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Author: Juhan Frank
Publisher: Cambridge University Press
ISBN: 9780521629577
Category : Science
Languages : en
Pages : 390
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Book Description
Accretion Power in Astrophysics examines accretion as a source of energy in both binary star systems containing compact objects, and in active galactic nuclei. Assuming a basic knowledge of physics, the authors describe the physical processes at work in accretion discs and other accretion flows. The first three chapters explain why accretion is a source of energy, and then present the gas dynamics and plasma concepts necessary for astrophysical applications. The next three chapters then develop accretion in stellar systems, including accretion onto compact objects. Further chapters give extensive treatment of accretion in active galactic nuclei, and describe thick accretion discs. A new chapter discusses recently discovered accretion flow solutions. The third edition is greatly expanded and thoroughly updated. New material includes a detailed treatment of disc instabilities, irradiated discs, disc warping, and general accretion flows. The treatment is suitable for advanced undergraduates, graduate students and researchers.
Author: Juhan Frank
Publisher: Cambridge University Press
ISBN: 9780521629577
Category : Science
Languages : en
Pages : 390
Get Book Here
Book Description
Accretion Power in Astrophysics examines accretion as a source of energy in both binary star systems containing compact objects, and in active galactic nuclei. Assuming a basic knowledge of physics, the authors describe the physical processes at work in accretion discs and other accretion flows. The first three chapters explain why accretion is a source of energy, and then present the gas dynamics and plasma concepts necessary for astrophysical applications. The next three chapters then develop accretion in stellar systems, including accretion onto compact objects. Further chapters give extensive treatment of accretion in active galactic nuclei, and describe thick accretion discs. A new chapter discusses recently discovered accretion flow solutions. The third edition is greatly expanded and thoroughly updated. New material includes a detailed treatment of disc instabilities, irradiated discs, disc warping, and general accretion flows. The treatment is suitable for advanced undergraduates, graduate students and researchers.
Author: Irfan Ali
Publisher: Brick Books
ISBN: 9781771315180
Category : Poetry
Languages : en
Pages : 72
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Book Description
An extraordinary debut set in Toronto, unfurling against the backdrop of an ancient Persian love story. The story of Layla and Majnun, made immortal by the Persian poet Nizami Ganjavi in the 12th century, has been retold thousands of times, in thousands of different ways, throughout literature. Against the backdrop of this story, to the sound-track of modern hip-hop, and amid the struggle of an immigrant family to instill an old faith under new conditions, Irfan Ali's Accretion hurtles towards an unsustainable, "greater madness." Majnun, one of the foundational literary characters who haunt Accretion, is also an Arabic epithet for "possessed." In this tradition, Ali has written a book from the places where the self is no longer the self; places where, in order not to shut down forever, the debris must be cleared, and the soul must inch towards love and hope, "on memory's dusty beams." Accretion is written in a contemporary lyricism that honours ancient poetic traditions. It is a familiar story, imbued with a particularity and honesty that only Irfan Ali could bring to the table. "Irfan Ali delves fearlessly into the beauty and cruelty of a utilitarian city and the chasms between people. The struggle between head and heart binds these poems. In fact, Accretion might be considered a roadmap for finding love in everything--ourselves, family, soul mates, urban life, and faith." --Emily Pohl-Weary, author of Ghost Sick "In Black Skin, White Masks, Frantz Fanon prays, pleads, 'O my body, make of me always a man who questions!' Irfan Ali undertakes this mission in Accretion. He knows there's no Faith more unquestionably powerful than Faith that empowers constant self-questioning. ...His speaker's neither a zealot nor an infidel, but someone whose obsessions get mistaken by an imam for piety. Every poet's a theologian, but Ali recognizes that Faith 'is the path between lovers' games'..." --George Elliott Clarke, 7th Parliamentary Poet Laureate of Canada (2016 & 2017)
Author: Aldo Treves
Publisher: World Scientific
ISBN: 9789810200770
Category : Science
Languages : en
Pages : 380
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Book Description
The book collects 29 papers which have been particularly influential in the development of accretion theory. As an introductory paper a recent review on the subject is reported. An extensive list of references closes the volume.
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.
Author: Lee Hartmann
Publisher: Cambridge University Press
ISBN: 9780521785204
Category : Science
Languages : en
Pages : 260
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Book Description
This first comprehensive account of the dynamical processes in the formation of stars and disks from which planets ultimately form.
Author: J. R. Frank
Publisher: CUP Archive
ISBN: 9780521245302
Category : Science
Languages : en
Pages : 296
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Book Description
This book is an account of the accretion of matter by massive astronomical objects. It sets out the physics of the accretion process in detail. This is related to observations of the accretion phenomenon in stellar systems and galaxies. The power derived through accretion processes is a dominant source of emission energy in X-ray stars and the cores of active galaxies. This book takes the physics undergraduate to a point at which it is possible to start independent research. It is suitable for graduate courses as well as providing an overview for the professional.
Author: Wolfgang J. Duschl
Publisher: Springer Science & Business Media
ISBN: 9401108587
Category : Science
Languages : en
Pages : 417
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Book Description
Accretion disks in astrophysics represent the characteristic flow by which compact bodies accrete mass from their environment. Their intrinsically high luminosity, and recent progress in observational accessibility at all wavelength bands, have led to rapidly growing awareness of their importance and made them the object of intense research on widely different scales, ranging from binary stars to young stellar objects and active galactic nuclei. This book contains the proceedings of the NATO Advanced Workshop on `Theory of Accretion Disks 2' for which some of the most active researchers in the different fields came together at the Max-Planck-Institut for Astrophysics in Garching in March, 1993. Its reviews and contributions give an up-to-date account of the present status of our understanding and provide a stimulating challenge in discussions of open questions in a rapidly developing field.
Author: Pranab Ghosh
Publisher: World Scientific
ISBN: 9812708464
Category : Science
Languages : en
Pages : 793
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Book Description
This book is an introduction to pulsars, a key area in high energy astrophysics with continuing potential for fundamental discoveries. Throughout the book runs the unifying thread of the evolutionary link between rotation-powered pulsars and accretion-powered pulsars OCo a milestone of modern astrophysics. Early textbooks on pulsars dealt almost entirely with rotation-powered ones, while accounts of pulsars in volumes on X-ray binaries focused almost exclusively on accretion-powered ones. This is the first textbook to treat these two kinds of pulsars simultaneously with equal importance, stressing the fact that both are rotating, magnetic neutron stars, operating under different conditions during different parts of their lives. It describes the observational properties of both kinds of pulsars, summarizes our physical understanding of these properties, and pays detailed attention to the physics of superdense matter which neutron stars are composed of, as well as to the superfluidity which is expected to occur in neutron stars. Evolution from rotation-power to accretion-power, and vice versa, are carefully described. The effects of the strong magnetic fields of neutron stars on themselves, their emission properties, and their environments are discussed, as are the origin and evolution of such magnetic fields. Also treated is the superbly accurate verification of Einstein''s theory of general relativity through timing studies of binary pulsars, which led to the award of the Nobel Prize to Hulse and Taylor in 1993. On each topic, the book starts with simple, basic physical concepts, and builds up the exposition to the point where the latest and most exciting developments become accessible to the reader."
Author: Maurizio Falanga
Publisher: Springer
ISBN: 1493922270
Category : Science
Languages : en
Pages : 483
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Book Description
Provides a comprehensive summary on the physical models and current theory of black hole accretion, growth and mergers, in both the supermassive and stellar-mass cases. This title reviews in-depth research on accretion on all scales, from galactic binaries to intermediate mass and supermassive black holes. Possible future directions of accretion are also discussed. The following main themes are covered: a historical perspective; physical models of accretion onto black holes of all masses; black hole fundamental parameters; and accretion, jets and outflows. An overview and outlook on the topic is also presented. This volume summarizes the status of the study of astrophysical black hole research and is aimed at astrophysicists and graduate students working in this field. Originally published in Space Science Reviews, Vol 183/1-4, 2014.
Author: Christopher W. Mauche
Publisher: Cambridge University Press
ISBN: 9780521545754
Category : Science
Languages : en
Pages : 504
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Book Description
This book is a well-edited and comprehensive survey of the current research in the field of low-mass accretion powered compact binaries, that is, binary stars containing a white dwarf, neutron star, or black hole as the primary star and a Roche-lobe filling low-mass as the secondary star. These stars have reached a stage in their evolution where the transfer of mass from the giant phase onto a dwarf or sub-dwarf star demonstrates many different aspects of physics. The volume is essentially a complete analysis of these stars combining theory and observation, and covering observations of low-mass X-ray binaries and both magnetic and nonmagnetic cataclysmic variables, theories of stellar accretion, novae, and evolution of compact binaries.
