Black Holes A Laboratory For Testing Strong Gravity

Author : Cosimo Bambi
Publisher : Springer
Page : 340 pages
File Size : 44,7 Mb
Release : 2017-06-01
Category : Science
ISBN : 9789811045240

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Black Holes: A Laboratory for Testing Strong Gravity by Cosimo Bambi Pdf

This textbook introduces the current astrophysical observations of black holes, and discusses the leading techniques to study the strong gravity region around these objects with electromagnetic radiation. More importantly, it provides the basic tools for writing an astrophysical code and testing the Kerr paradigm. Astrophysical black holes are an ideal laboratory for testing strong gravity. According to general relativity, the spacetime geometry around these objects should be well described by the Kerr solution. The electromagnetic radiation emitted by the gas in the inner part of the accretion disk can probe the metric of the strong gravity region and test the Kerr black hole hypothesis. With exercises and examples in each chapter, as well as calculations and analytical details in the appendix, the book is especially useful to the beginners or graduate students who are familiar with general relativity while they do not have any background in astronomy or astrophysics.“/p>

Author : Cosimo Bambi
Publisher : Springer
Page : 0 pages
File Size : 47,7 Mb
Release : 2023-07-04
Category : Science
ISBN : 9819915953

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Regular Black Holes by Cosimo Bambi Pdf

Black holes are one of the most fascinating predictions of general relativity. They are the natural product of the complete gravitational collapse of matter and today we have a body of observational evidence supporting the existence of black holes in the Universe. However, general relativity predicts that at the center of black holes there are spacetime singularities, where predictability is lost and standard physics breaks down. It is widely believed that spacetime singularities are a symptom of the limitations of general relativity and must be solved within a theory of quantum gravity. Since we do not have yet any mature and reliable candidate for a quantum gravity theory, researchers have studied toy-models of singularity-free black holes and of singularity-free gravitational collapses in order to explore possible implications of the yet unknown theory of quantum gravity. This book reviews all main models of regular black holes and non-singular gravitational collapses proposed in the literature, and discuss the theoretical and observational implications of these scenarios.

Author : V. Frolov,I. Novikov
Publisher : Springer Science & Business Media
Page : 786 pages
File Size : 44,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401151399

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Black Hole Physics by V. Frolov,I. Novikov Pdf

It is not an exaggeration to say that one of the most exciting predictions of Einstein's theory of gravitation is that there may exist "black holes": putative objects whose gravitational fields are so strong that no physical bodies or signals can break free of their pull and escape. The proof that black holes do exist, and an analysis of their properties, would have a significance going far beyond astrophysics. Indeed, what is involved is not just the discovery of yet another even if extremely remarkable, astro physical object, but a test of the correctness of our understanding of the properties of space and time in extremely strong gravitational fields. Theoretical research into the properties of black holes, and into the possible corol laries of the hypothesis that they exist, has been carried out with special vigor since the beginning of the 1970's. In addition to those specific features of black holes that are important for the interpretation of their possible astrophysical manifestations, the theory has revealed a number of unexpected characteristics of physical interactions involving black holes. By the middle of the 1980's a fairly detailed understanding had been achieved of the properties of the black holes, their possible astrophysical manifestations, and the specifics of the various physical processes involved. Even though a completely reliable detection of a black hole had not yet been made at that time, several objects among those scrutinized by astrophysicists were considered as strong candidates to be confirmed as being black holes.

Author : Valeri P. Frolov,Andrei Zelnikov
Publisher : Oxford University Press
Page : 505 pages
File Size : 46,8 Mb
Release : 2011-09-22
Category : Science
ISBN : 9780199692293

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Introduction to Black Hole Physics by Valeri P. Frolov,Andrei Zelnikov Pdf

What is a black hole? How many of them are in our Universe? Can black holes be created in a laboratory or in particle colliders? Can objects similar to black holes be used for space and time travel? This book discusses these and many other questions providing the reader with the tools required to explore the Black Hole Land independently.

Author : Gustavo E. Romero,Gabriela S. Vila
Publisher : Springer
Page : 318 pages
File Size : 45,8 Mb
Release : 2013-09-14
Category : Science
ISBN : 9783642395963

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Introduction to Black Hole Astrophysics by Gustavo E. Romero,Gabriela S. Vila Pdf

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.

Author : Richard Brito,Vitor Cardoso,Paolo Pani
Publisher : Springer Nature
Page : 293 pages
File Size : 55,5 Mb
Release : 2020-08-21
Category : Science
ISBN : 9783030466220

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Superradiance by Richard Brito,Vitor Cardoso,Paolo Pani Pdf

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 : Chris Oxlade
Publisher : Heinemann Educational Books
Page : 40 pages
File Size : 48,8 Mb
Release : 1999
Category : Black holes (Astronomy)
ISBN : 1575728087

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The Mystery of Black Holes by Chris Oxlade Pdf

Explores the phenomenon of black holes, explains why astronomers think they exist, what causes them, what they are like inside, and the search to find black holes in space.

Author : Francesco Haardt,Vittorio Gorini,Ugo Moschella,Aldo Treves,Monica Colpi
Publisher : Springer
Page : 314 pages
File Size : 54,6 Mb
Release : 2015-11-03
Category : Science
ISBN : 9783319194165

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Astrophysical Black Holes by Francesco Haardt,Vittorio Gorini,Ugo Moschella,Aldo Treves,Monica Colpi Pdf

Based on graduate school lectures in contemporary relativity and gravitational physics, this book gives a complete and unified picture of the present status of theoretical and observational properties of astrophysical black holes. The chapters are written by internationally recognized specialists. They cover general theoretical aspects of black hole astrophysics, the theory of accretion and ejection of gas and jets, stellar-sized black holes observed in the Milky Way, the formation and evolution of supermassive black holes in galactic centers and quasars as well as their influence on the dynamics in galactic nuclei. The final chapter addresses analytical relativity of black holes supporting theoretical understanding of the coalescence of black holes as well as being of great relevance in identifying gravitational wave signals. With its introductory chapters the book is aimed at advanced graduate and post-graduate students, but it will also be useful for specialists.

Author : Thomas J. Maccarone,Robert P. Fender,Luis C. Ho
Publisher : Springer Science & Business Media
Page : 276 pages
File Size : 47,7 Mb
Release : 2007-01-28
Category : Science
ISBN : 9781402040856

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From X-ray Binaries to Quasars: Black Holes on All Mass Scales by Thomas J. Maccarone,Robert P. Fender,Luis C. Ho Pdf

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.

Author : Cosimo Bambi
Publisher : Springer Nature
Page : 5912 pages
File Size : 48,5 Mb
Release : 2024-05-21
Category : Electronic
ISBN : 9789811969607

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Handbook of X-ray and Gamma-ray Astrophysics by Cosimo Bambi Pdf

Author : Marcel Chotkowski Lafollette
Publisher : MIT Press
Page : 281 pages
File Size : 54,5 Mb
Release : 2023-08-22
Category : Science
ISBN : 9780262048163

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Writing for Their Lives by Marcel Chotkowski Lafollette Pdf

A breathtaking history of America’s trail-blazing female science journalists—and the timely lessons they can teach us about equity, access, collaboration, and persistence. Writing for Their Lives tells the stories of women who pioneered the nascent profession of science journalism from the 1920s through the 1950s. Like the “hidden figures” of science, such as Dorothy Vaughan and Katherine Johnson, these women journalists, Marcel Chotkowski LaFollette writes, were also overlooked in traditional histories of science and journalism. But, at a time when science, medicine, and the mass media were expanding dramatically, Emma Reh, Jane Stafford, Marjorie Van de Water, and many others were explaining theories, discoveries, and medical advances to millions of readers via syndicated news stories, weekly columns, weekend features, and books—and they deserve the recognition they have long been denied. Grounded in extensive archival research and enlivened by passages of original correspondence, Writing for Their Lives addresses topics such as censorship, peer review, and news embargoes, while also providing intimate glimpses into the personal lives and adventures of mid-twentieth-century career women. They were single, married, or divorced; mothers with child-care responsibilities; daughters supporting widowed mothers; urban dwellers who lived through, and wrote about, the Great Depression, World War II, and the dawn of the Atomic Age—all the while, daring to challenge the arrogance and misogyny of the male scientific community in pursuit of information that could serve the public. Written at a time when trust in science is at a premium, Writing for Their Lives is an inspiring untold history that underscores just how crucial dedicated, conscientious journalists are to the public understanding and acceptance of scientific guidance and expertise.

Author : Brian Punsly
Publisher : Springer Science & Business Media
Page : 411 pages
File Size : 43,7 Mb
Release : 2013-03-09
Category : Science
ISBN : 9783662044094

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Black Hole Gravitohydromagnetics by Brian Punsly Pdf

A new branch of physics, black hole gravitohydromagnetics (GHM) is developed from the rudiments to the frontiers of research. GHM describes plasma interactions that combine the effects of gravity and a strong magnetic field, in the vicinity (ergosphere) of a rapidly rotating black hole. This topic was created in response to the astrophysical quest to understand the central engines of radio loud extragalactic radio sources. The theory describes a "torsional tug of war" between rotating ergospheric plasma and the distant asymptotic plasma that extracts the rotational inertia of the black hole.

Author : John W. Moffat
Publisher : Oxford University Press
Page : 304 pages
File Size : 55,9 Mb
Release : 2020-06-16
Category : Science
ISBN : 9780190650742

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The Shadow of the Black Hole by John W. Moffat Pdf

Black holes entered the world of science fiction and films in the 1960s, and their popularity in our culture remains today. The buzz surrounding black holes was and is due, in large part, to their speculative nature. It is still difficult for the general public to determine fact versus fiction as it pertains to this terrifying idea: something big enough to swallow anything and everything in close proximity, with a gravitational force so strong that nothing, including light, can escape. In the fall of 2015, scientists at the Laser Interferometry Gravitational-Wave Observatory (LIGO) detected the first sounds from black holes, brought to earth by the gravitational waves that emitted from the merging of two black holes 1.4 billion light years away in space. This confirmed the existence of gravitational waves, which Albert Einstein predicted in 1916. In the spring of 2017, physicists and astronomers who were working on the Event Horizon Telescope (EHT) project captured the first image of a black hole. This was the supermassive black hole hosted by the galaxy M87 in the constellation Virgo, 53 million light years away, and the image shows the shadow the black hole casts upon the bright light surrounding it. In this book, John Moffat shares the history of black holes and presents the latest research into these mysterious celestial objects, including the astounding results from gravitational wave detection and the shadow of the black hole.

Author : H Falcke,F Hehl
Publisher : CRC Press
Page : 380 pages
File Size : 49,5 Mb
Release : 2002-12-16
Category : Science
ISBN : 1420033425

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The Galactic Black Hole by H Falcke,F Hehl Pdf

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.

Author : Belgiorno Francesco D,Cacciatori Sergio L,Faccio Daniele
Publisher : World Scientific
Page : 340 pages
File Size : 46,5 Mb
Release : 2000-03-21
Category : Science
ISBN : 9789814508551

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Hawking Radiation by Belgiorno Francesco D,Cacciatori Sergio L,Faccio Daniele Pdf

The aim of this book is to provide the reader with a guide to Hawking radiation through a dual approach to the problem. After an introductory chapter containing some basic knowledge about black holes and quantum field theory in curved spacetime, the first part of the book consists in a survey of methods for deriving and studying Hawking radiation from astrophysical black holes, from the original calculation by S W Hawking to the most recent contributions involving tunneling and gravitational anomalies. In the second part, we introduce analogue gravity, and we focus our attention to dielectric black hole systems, to which the studies of the present authors are devoted. The mutual interchange of knowledge between the aforementioned parts is addressed to render a more comprehensive picture of this very fascinating quantum phenomenon associated with black holes.