[PDF] New Frontiers In Black Hole Astrophysics Iau S324 eBook

Author : Andreja Gomboc
Publisher : Cambridge University Press
Page : 0 pages
File Size : 49,38 MB
Release : 2017-07-27
Category : Science
ISBN : 9781107169944

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Black holes lie at the heart of some of the most fascinating astrophysical phenomena. IAU Symposium 324 marked the 100th anniversary of Schwarzschild's solution of Einstein's field equations predicting the existence of black holes. Our understanding of black holes has come an impressively long way since then, with the last major discovery being coalescing black holes producing gravitational waves, also predicted in 1916. In this volume, observational and theoretical experts discuss the current state-of-the-art in the astrophysics of black-hole systems and their exploitation in testing fundamental theories of physics. Topics span a wide range and include a historical review, the similarity and diversity of black hole systems, gamma ray bursts, tidal disruption events, active galactic nuclei, black hole systems as multi-messenger sources, and the opening of new observational horizons. This fresh review is especially useful to researchers and graduate students engaged in these exciting fields.

Author : International Astronomical Union. Symposium
Publisher :
Page : 361 pages
File Size : 14,85 MB
Release : 2017
Category : Black holes (Astronomy)
ISBN :

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Black holes lie at the heart of some of the most fascinating astrophysical phenomena. IAU symposium 324 marked the 100th anniversary of Schwarzchild's solution of Einstein's field equations predicting the existence of black holes. Our understanding of black holes has come an impressively long way since then, with the last major discovery being coalescing black holes producing gravitational waves, also predicted in 1916. In this volume, observational and theoretical experts discuss the current state-of-the-art in the astrophysics of black hole systems and their exploitation in testing fundamental theories of physics. Topics span a wide range and include: a historical review, the similarity and diversty of black hole systems, gamma ray bursts, tidal disruption events, active galactic nuclei, black hole systems as multi-messeger sources, and the opening of new observational horizons.

Author : Richard Brito
Publisher : Springer Nature
Page : 293 pages
File Size : 37,45 MB
Release : 2020-08-21
Category : Science
ISBN : 3030466221

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This book focuses on one mechanism in black hole physics which has proven to be universal, multifaceted and with a rich phenomenology: rotational superradiance. This is an energy extraction process, whereby black holes can deposit their rotational energy in their surroundings, leading to Penrose processes, black-hole bombs, and even Hawking radiation. Black holes are key players in star formation mechanisms and as engines to some of the most violent events in our universe. Their simplicity and compactness make them perfect laboratories, ideally suited to probe new fields or modifications to the theory of gravity. Thus, black holes can also be used to probe some of the most important open problems in physics, including the nature of dark matter or the strong CP problem in particle physics. This monograph is directed to researchers and graduate students and provides a unified view of the subject, covering the theoretical machinery, experimental efforts in the laboratory, and astrophysics searches. It is focused on recent developments and works out a number of novel examples and applications, ranging from fundamental physics to astrophysics. Non-specialists with a scientific background should also find this text a valuable resource for understanding the critical issues of contemporary research in black-hole physics. This second edition stresses the role of ergoregions in superradiance, and completes its catalogue of energy-extraction processes. It presents a unified description of instabilities of spinning black holes in the presence of massive fields. Finally, it covers the first experimental observation of superradiance, and reviews the state-of-the-art in the searches for new light fields in the universe using superradiance as a mechanism.

Author : Óscar J. C. Dias
Publisher :
Page : 0 pages
File Size : 43,93 MB
Release : 2024-08-07
Category : Science
ISBN : 9781022903845

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Journeys Through the Event Horizon: New Frontiers in Black Hole Research is a comprehensive anthology of pioneering journal articles examining the multifaceted phenomenon of black holes, one of the universe's most captivating enigmas. Curated from the latest research, this collection delves into varied themes such as asymptotically flat hairy black holes, constraints on black-hole charges through Event Horizon Telescope data, and the intricate properties of gravitational waves stemming from binary black hole coalescences. It addresses groundbreaking concepts like black holes as holographic superconductors, constraints on primordial black holes as dark matter candidates, and the interplay between quantum mechanics and general relativity near extremal black holes. The anthology shines a spotlight on key observations, including the M87* supermassive black hole and its implications on theoretical models. By exploring hierarchical black hole mergers and the thermodynamics under extreme gravitational conditions, this collection paints a vivid picture of the dynamic and profound universe we inhabit. Each article not only advances our scientific understanding but also ignites the imagination, making 'Journeys Through the Event Horizon' an essential read for astrophysics enthusiasts and researchers delving into the deepest mysteries of the cosmos. Quality Research Publishing is dedicated to making knowledge more accessible to the general public by curating a topical compilation of the latest research on various subjects and providing plain language summaries. Each of the articles in this book is available individually and digitally without cost. However, we believe it is important for the contextualizing and sharing of educational and scientific work to curate this research in a way that is understandable and helpful to the average person seeking deeper knowledge of a particular subject. The research articles compiled for this book were published under a permissive Creative Commons license, are in the public domain, or have no copyright restrictions, permitting their use in this book. If you have questions about the licensing of any article, please visit qualityresearchpublishing.com.

Author : Vladimir Karas
Publisher : Cambridge University Press
Page : 504 pages
File Size : 11,70 MB
Release : 2007-07-30
Category : Science
ISBN : 9780521863476

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Until recently, black holes were often considered as exotic objects of dubious existence. In the last decade, observations have provided overwhelming evidence in favour of the presence of supermassive black holes at the centre of galaxies, including the Milky Way; of stellar-mass black holes in binary stellar systems; and, possibly, of intermediate-mass black holes in ultraluminous X-ray sources in nearby galaxies. Black holes are now widely accepted as real physical entities, playing an important role in modern astrophysics. IAU S238 brought together observers and theoreticians working in black hole astrophysics - from stellar-mass black holes to supermassive ones residing at the centre of galaxies - with the aim of highlighting and discussing similarities in the physics involved. Leading researchers review the subject and report on recent results on accretion discs, relativistic jets, spectroscopy in different spectral bands - from X-rays to radio - and other aspects of black hole astrophysics.

Author : David L. Meier
Publisher : Springer Science & Business Media
Page : 941 pages
File Size : 42,97 MB
Release : 2012-07-27
Category : Science
ISBN : 3642019366

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As a result of significant research over the past 20 years, black holes are now linked to some of the most spectacular and exciting phenomena in the Universe, ranging in size from those that have the same mass as stars to the super-massive objects that lie at the heart of most galaxies, including our own Milky Way. This book first introduces the properties of simple isolated holes, then adds in complications like rotation, accretion, radiation, and magnetic fields, finally arriving at a basic understanding of how these immense engines work. Black Hole Astrophysics • reviews our current knowledge of cosmic black holes and how they generate the most powerful observed pheonomena in the Universe; • highlights the latest, most up-to-date theories and discoveries in this very active area of astrophysical research; • demonstrates why we believe that black holes are responsible for important phenomena such as quasars, microquasars and gammaray bursts; • explains to the reader the nature of the violent and spectacular outfl ows (winds and jets) generated by black hole accretion.

Author : Gabriele Bruni
Publisher : Cambridge University Press
Page : 0 pages
File Size : 15,35 MB
Release : 2024-07-31
Category : Science
ISBN : 9781009398817

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IAU Symposium 378 covers one of the main astrophysical topics about black holes: the production of outflows, propagating at different scales. In the past decade, evidence has been mounting about the role of outflows in the evolution of the surrounding environment, in particular their so-called "feedback" effect on the star-forming capabilities of the galaxy hosting the black hole. This broad topic brought together observers of many different wavebands, with a multitude of observational aspects being presented, including latest results from JWST, GRAVITY, Hubble, ALMA, and VLBA. Sessions were also dedicated to theoretical aspects of black hole outflows, discussing a variety of simulations for magnetic and thermally driven winds, cases from extreme mass accretion rates to advection dominated flows, and topics of radiative driving and radiative transfer. These proceedings provide a picture of the field's status, highlighting currently debated topics, and suggesting possible new routes for the future developments.

Author : Janna Levin
Publisher : Knopf
Page : 257 pages
File Size : 17,64 MB
Release : 2016
Category : Science
ISBN : 0307958191

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"In 1916, Einstein became the first to predict the existence of gravitational waves: sounds without a material medium generated by the unfathomably energy-producing collision of black holes. Now, Janna Levin, herself an astrophysicist, recounts the story of the search, over the last fifty years, for these elusive waves--a quest that has culminated in the creation of the most expensive project ever funded by the National Science Foundation ($1 billion-plus). She makes clear the how the waves are created in the cosmic collision of black holes, and why the waves can never be detected by telescope. And, most revealingly, she delves into the lives and fates of the four scientists currently engaged in--and obsessed with--discerning this soundtrack of the universe's history. Levin's account of the surprises, disappointments, achievements, and risks of this unfolding story provides us with a uniquely compelling and intimate portrait of the people and processes of modern science"--

Author : Gustavo E. Romero
Publisher : Springer
Page : 326 pages
File Size : 22,55 MB
Release : 2013-09-14
Category : Science
ISBN : 3642395961

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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.