Disc Winds Matter - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Disc Winds Matter write by James Matthews. This book was released on 2017-08-01. Disc Winds Matter available in PDF, EPUB and Kindle. This thesis describes the application of a Monte Carlo radiative transfer code to accretion disc winds in two types of systems spanning 9 orders of magnitude in mass and size. In both cases, the results provide important new insights. On small scales, the presence of disc winds in accreting white dwarf binary systems has long been inferred from the presence of ultraviolet absorption lines. Here, the thesis shows that the same winds can also produce optical emission lines and a recombination continuum. On large scales, the thesis constructs a simple model of disc winds in quasars that is capable of explaining both the observed absorption and emission signatures – a crucial advance that supports a disc-wind based unification scenario for quasars. Lastly, the thesis also includes a theoretical investigation into the equivalent width distribution of the emission lines in quasars, which reveals a major challenge to all unification scenarios.
Clumping in Hot-star Winds
Clumping in Hot-star Winds - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Clumping in Hot-star Winds write by Wolf-Rainer Hamann. This book was released on 2008. Clumping in Hot-star Winds available in PDF, EPUB and Kindle.
Magnetohydrodynamics in Binary Stars
Magnetohydrodynamics in Binary Stars - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Magnetohydrodynamics in Binary Stars write by C. G. Campbell. This book was released on 2018-10-13. Magnetohydrodynamics in Binary Stars available in PDF, EPUB and Kindle. Magnetism in binary stars is an area of central importance in stellar astrophysics. The second edition of "Magnetohydrodynamics in Binary Stars" is a major revision of the first edition. The material has been updated and extended, including additional chapters on the origins of the stellar magnetic fields and accretion disc magnetic winds. A comprehensive account is given of the subject, from the early work up to the latest results. The unifying theme remains the redistribution of angular momentum by magnetic stresses. This occurs in a wide variety of ways, including magnetic stellar and orbital coupling, magnetic channelling of accretion streams, magnetic stellar coupling to accretion discs, dynamo field coupling in discs, and magnetic stellar and disc winds. The associated stellar spin and orbital evolution problems, including stability, are also considered. Although the main focus is on binary stars, much of the work on accretion discs and wind flows has more general astrophysical relevance. Convenient formulae are included that can be compared to observations, making the book useful to observers as well as theorists, and there are extensive reference lists. The material is mainly aimed at research workers, but parts of the text could be useful for postgraduate courses in magnetic stellar astrophysics topics.
Introduction to Stellar Winds
Introduction to Stellar Winds - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Introduction to Stellar Winds write by Henny J. G. L. M. Lamers. This book was released on 1999-06-17. Introduction to Stellar Winds available in PDF, EPUB and Kindle. The first comprehensive introduction to the observations and theories of stellar winds; a long-awaited graduate textbook, written by two founders of the field.
Accretion Flows in Astrophysics
Accretion Flows in Astrophysics - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Accretion Flows in Astrophysics write by Nikolay Shakura. This book was released on 2018-10-03. Accretion Flows in Astrophysics available in PDF, EPUB and Kindle. 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.
