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Book The Ins and Outs of Emission from Accreting Black Holes

Download or read book The Ins and Outs of Emission from Accreting Black Holes written by and published by . This book was released on 2013 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most extreme physical conditions of space-time in the Universe happen in the vicinity of accreting black holes, which make them the perfect laboratory for testing extreme physics theories. The present thesis investigates accretion processes using radiation as a tracer of the physics occurring very close to the accreting black holes as well as far into the jets. It provides a means to understand the mechanism of the most powerful accelerator engines known in the Universe. Specifically, I study the importance of radiative processes in general relativistic magneto-hydrodynamic (GRMHD) simulations on the dynamics of the accretion flow around Sgr A* and examine the effects a self-consistent treatment of radiative cooling in GRMHD simulations has on the simulated spectra. I also discuss the contribution of the protons to the high-energy emission from jets of accreting black holes and present a new semi-analytic spectral jet model. This spectral model is then applied to analyse quasi-simultaneous observations from radio to the soft gamma-rays of Cygnus X-1.

Book The Physics of Accretion onto Black Holes

Download or read book The Physics of Accretion onto Black Holes written by Maurizio Falanga and published by Springer. This book was released on 2014-10-28 with total page 483 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Book Fast Spectral Variability in the X Ray Emission of Accreting Black Holes

Download or read book Fast Spectral Variability in the X Ray Emission of Accreting Black Holes written by Chris Skipper and published by . This book was released on 2014-09-30 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book High Energy Processes in Accreting Black Holes

Download or read book High Energy Processes in Accreting Black Holes written by Juri Poutanen and published by . This book was released on 1999 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Current High energy Emission Around Black Holes  Proceedings Of The 2nd Kias Astrophysics Workshop

Download or read book Current High energy Emission Around Black Holes Proceedings Of The 2nd Kias Astrophysics Workshop written by Heon-young Chang and published by World Scientific. This book was released on 2002-05-24 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: Black holes exist in galactic nuclei and in some X-ray binaries found in our own galaxy and the large Magellanic Cloud. This volume focuses on astrophysical high-energy emission processes around black holes, and the development of theoretical frameworks for interesting observational results.

Book Accretion Power in Astrophysics

Download or read book Accretion Power in Astrophysics written by Juhan Frank and published by Cambridge University Press. This book was released on 2002-01-17 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Book Accretion Into and Emission from Black Holes

Download or read book Accretion Into and Emission from Black Holes written by Don Nelson Page and published by . This book was released on 1976 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Supermassive Black Holes in the Distant Universe

Download or read book Supermassive Black Holes in the Distant Universe written by A.J. Barger and published by Springer Science & Business Media. This book was released on 2013-11-09 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quasars, and the menagerie of other galaxies with "unusual nuclei", now collectively known as Active Galactic Nuclei or AGN, have, in one form or another, sparked the interest of astronomers for over 60 years. The only known mechanism that can explain the staggering amounts of energy emitted by the innermost regions of these systems is gravitational energy release by matter falling towards a supermassive black hole --- a black hole whose mass is millions to billions of times the mass of our Sun. AGN emit radiation at all wavelengths. X-rays originating at a distance of a few times the event horizon of the black hole are the emissions closest to the black hole that we can detect; thus, X-rays directly reveal the presence of active supermassive black holes. Oftentimes, however, the supermassive black holes that lie at the centers of AGN are cocooned in gas and dust that absorb the emitted low energy X-rays and the optical and ultraviolet light, hiding the black hole from view at these wavelengths. Until recently, this low-energy absorption presented a major obstacle in observational efforts to map the accretion history of the universe. In 1999 and 2000, the launches of the Chandra and XMM-Newton X-ray Observatories finally broke the impasse. The impact of these observatories on X-ray astronomy is similar to the impact that the Hubble Space Telescope had on optical astronomy. The astounding new data from these observatories have enabled astronomers to make enormous advances in their understanding of when accretion occurs.

Book Astrophysics in the Next Decade

Download or read book Astrophysics in the Next Decade written by Harley A. Thronson and published by Springer Science & Business Media. This book was released on 2009-02-03 with total page 523 pages. Available in PDF, EPUB and Kindle. Book excerpt: NASA’s James Webb Space Telescope (JWST), planned for operation in about five years, will have the capability to investigate – and answer – some of the most challenging questions in astronomy. Although motivated and designed to study the very early Universe, the performance of the observatory’s instruments over a very wide wavelength range will allow the world’s scientific community unequaled ability to study cosmic phenomena as diverse as small bodies in the Solar System and the formation of galaxies. As part of preparation to use JWST, a conference was held in Tucson, Arizona in 2007 that brought together astronomers from around the world to discuss the mission, other major facilities that will operate in the coming decade, and major scientific goals for them. This book is a compilation of those presentations by some of the leading researchers from all branches of astronomy. This book also includes a “pre-history” of JWST, describing the lengthy process and some of the key individuals that initiated early work on the concepts that would evolve to become the premier space observatory of the next decade.

Book The Galactic Black Hole

Download or read book The Galactic Black Hole written by H Falcke and published by CRC Press. This book was released on 2002-12-16 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: The supermassive black hole in the center of our Milky Way is the nearest such object and relatively easy to observe and study. Not surprisingly therefore, it is the best studied supermassive black hole. Many astrophysical and even general relativistic effects can be investigated in great detail. The Galactic Black Hole: Lectures on General Relativity and Astrophysics provides a systematic introduction to the physics/astrophysics and mathematics of black holes at a level suitable for graduate students, postdocs, and researchers in physics, astrophysics, astronomy, and applied mathematics. The focus is mainly on the supermassive black hole in the center of our Milky Way but the results can be easily generalized taking it as an example. Leading international experts provide first-hand accounts of the observational and theoretical aspects of this black hole. Topics range from the properties of the Schwarzschild metric and the collapse of a black hole, to quantum gravity, and from the structure of the Galaxy to accretion of matter and the emission properties of the Galactic Center black hole.

Book Theory of Black Hole Accretion Discs

Download or read book Theory of Black Hole Accretion Discs written by Marek A. Abramowicz and published by Cambridge University Press. This book was released on 1998 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Book From X ray Binaries to Quasars  Black Holes on All Mass Scales

Download or read book From X ray Binaries to Quasars Black Holes on All Mass Scales written by Thomas J. Maccarone and published by Springer Science & Business Media. This book was released on 2007-01-28 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume brings together contributions from many of the world's leading authorities on black hole accretion. The papers within represent part of a new movement to make use of the relative advantages of studying stellar mass and supermassive black holes, and to bring together the knowledge gained from the two approaches. The topics discussed include black hole observational and theoretical work-variability, spectroscopy, disk-jet connections, and multi-wavelength campaigns on black holes.

Book X ray Emission from Accreting Black Holes

Download or read book X ray Emission from Accreting Black Holes written by and published by . This book was released on 2003 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Beyond Einstein Gravity

    Book Details:
  • Author : Salvatore Capozziello
  • Publisher : Springer Science & Business Media
  • Release : 2010-10-27
  • ISBN : 9400701659
  • Pages : 447 pages

Download or read book Beyond Einstein Gravity written by Salvatore Capozziello and published by Springer Science & Business Media. This book was released on 2010-10-27 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beyond Einstein’s Gravity is a graduate level introduction to extended theories of gravity and cosmology, including variational principles, the weak-field limit, gravitational waves, mathematical tools, exact solutions, as well as cosmological and astrophysical applications. The book provides a critical overview of the research in this area and unifies the existing literature using a consistent notation. Although the results apply in principle to all alternative gravities, a special emphasis is on scalar-tensor and f(R) theories. They were studied by theoretical physicists from early on, and in the 1980s they appeared in attempts to renormalize General Relativity and in models of the early universe. Recently, these theories have seen a new lease of life, in both their metric and metric-affine versions, as models of the present acceleration of the universe without introducing the mysterious and exotic dark energy. The dark matter problem can also be addressed in extended gravity. These applications are contributing to a deeper understanding of the gravitational interaction from both the theoretical and the experimental point of view. An extensive bibliography guides the reader into more detailed literature on particular topics.

Book Black Hole Formation and Growth

Download or read book Black Hole Formation and Growth written by Tiziana Di Matteo and published by Springer. This book was released on 2020-11-12 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ultimate proofs that black holes exist have been obtained very recently thanks to the detection of gravitational waves from their coalescence and due to material orbiting at a distance of some gravitational radii imaged by optical interferometry or X-ray reverberation mapping. This book provides three comprehensive and up-to-date reviews covering the gravitational wave breakthrough, our understanding of accretion and feedback in supermassive black holes and the relevance of black holes for the Universe since the Big Bang. Neil J. Cornish presents gravitational wave emission from black hole mergers and the physics of detection. Andrew King reviews the physics of accretion on to supermassive black holes and their feedback on host galaxies. Tiziana Di Matteo addresses our understanding of black hole formation at cosmic dawn, the emergence of the first quasars, black hole merging and structure formation. The topics covered by the 48th Saas-Fee Course provide a broad overview of the importance of black holes in modern astrophysics.

Book X ray Emission and Reflection from Accreting Black Holes

Download or read book X ray Emission and Reflection from Accreting Black Holes written by Dominic James Walton and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Black Hole Astrophysics 2002  Proceedings Of The Sixth Apctp Winter School

Download or read book Black Hole Astrophysics 2002 Proceedings Of The Sixth Apctp Winter School written by Hyun Kyu Lee and published by World Scientific. This book was released on 2002-09-23 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book consists of about 20 lectures on theoretical and observational aspects of astrophysical black holes, by experts in the field. The basic principles and astrophysical applications of the black hole magnetosphere and the Blandford-Znajek process are reviewed in detail, as well as accretion by black holes, black hole X-Ray binaries, black holes with cosmic strings, and so on. Recent advances in X-Ray observations of galactic black holes and new understanding of supermassive black holes in AGNs and normal galaxies are also discussed.