New Frontiers in Gravitational Collapse and Spacetime Singularities
Author: Daniele Malafarina
Publisher: Springer Nature
Published:
Total Pages: 378
ISBN-13: 981971172X
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Gravitational Collapse and Spacetime Singularities
Author: Pankaj S. Joshi
Publisher: Cambridge University Press
Published: 2012-09-20
Total Pages: 0
ISBN-13: 9781107405363
DOWNLOAD EBOOK →Physical phenomena in astrophysics and cosmology involve gravitational collapse in a fundamental way. The final fate of a massive star when it collapses under its own gravity at the end of its life cycle is one of the most important questions in gravitation theory and relativistic astrophysics, and is the foundation of black hole physics. General relativity predicts that continual gravitational collapse gives rise to a space-time singularity. Quantum gravity may take over in such regimes to resolve the classical space-time singularity. This book investigates these issues, and shows how the visible ultra-dense regions arise naturally and generically as an outcome of dynamical gravitational collapse. It will be of interest to graduate students and academic researchers in gravitation physics, fundamental physics, astrophysics, and cosmology. It includes a detailed review of research into gravitational collapse, and several examples of collapse models are investigated in detail.
Regular Black Holes
Author: Cosimo Bambi
Publisher: Springer Nature
Published: 2023-07-06
Total Pages: 505
ISBN-13: 9819915961
DOWNLOAD EBOOK →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.
Spacetime Singularities Arising in a Gravitational Collapse
Author: Pramod N. Mulkalwar
Publisher: LAP Lambert Academic Publishing
Published: 2013
Total Pages: 116
ISBN-13: 9783659403385
DOWNLOAD EBOOK →The study of the gravitational collapse of massive objects to form black holes has a long and fascinating history. The purpose of this book is to present a study on naked singularities arising in different dimensional gravitational collapse and its implication to cosmic censorship hypothesis for the university students and researchers who are pursuing this line of research. This book provides the study of gravitational collapse of spherically symmetric and non-spherically symmetric space-times and examine whether it ends into a black hole or a naked singularity.
Gravitational Collapse of Spherical Spacetimes
Author: Kishor Patil
Publisher: LAP Lambert Academic Publishing
Published: 2012-05
Total Pages: 172
ISBN-13: 9783659136245
DOWNLOAD EBOOK →Visibility of spacetime singularities formed in the gravitational collapse of a star has been one of the most disputed topics of modern astrophysics and cosmology for the past four decades. This provocative, topical book presents the scientific foundation for thinking that spacetime singularities formed in the collapse of a star might be visible. The book portrays methods for determining the nature of singularities arising in four and higher dimensional spacetimes. It is the most comprehensive book, which will be an essential reading for astrophysicists, cosmologists and all those interested in understanding the gravitational collapse of a star.
Frontiers in Numerical Relativity
Author: Charles R. Evans
Publisher: Cambridge University Press
Published: 1989-04-13
Total Pages: 451
ISBN-13: 0521366666
DOWNLOAD EBOOK →This 1989 text will be of value to those who wish to understand developments in computer studies of general relativity at the time of publication.
Modified and Quantum Gravity
Author: Christian Pfeifer
Publisher: Springer Nature
Published: 2023-11-01
Total Pages: 557
ISBN-13: 3031315200
DOWNLOAD EBOOK →This book discusses theoretical predictions and their comparison with experiments of extended and modified classical and quantum theories of gravity. The goal is to provide a readable access and broad overview over different approaches to the topic to graduate and PhD students as well as to young researchers. The book presents both, theoretical and experimental insights and is structured in three parts. The first addresses the theoretical models beyond special and general relativity such as string theory, Poincare gauge theory and teleparallelism as well as Finsler gravity. In turn, the second part is focused on the observational effects that these models generate, accounting for tests and comparisons which can be made on all possible scales: from the universe as a whole via binary systems, stars, black holes, satellite experiments, down to laboratory experiments at micrometer and smaller scales. The last part of this book is dedicated to quantum systems and gravity, showing tests of classical gravity with quantum systems, and coupling of quantum matter and gravity.
The Story of Collapsing Stars
Author: Pankaj S. Joshi
Publisher: OUP Oxford
Published: 2015-01-08
Total Pages: 315
ISBN-13: 0191510262
DOWNLOAD EBOOK →This book journeys into one of the most fascinating intellectual adventures of recent decades - understanding and exploring the final fate of massive collapsing stars in the universe. The issue is of great interest in fundamental physics and cosmology today, from both the perspective of gravitation theory and of modern astrophysical observations. This is a revolution in the making and may be intimately connected to our search for a unified understanding of the basic forces of nature, namely gravity that governs the cosmological universe, and the microscopic forces that include quantum phenomena. According to the general theory of relativity, a massive star that collapses catastrophically under its own gravity when it runs out of its internal nuclear fuel must give rise to a space-time singularity. Such singularities are regions in the universe where all physical quantities take their extreme values and become arbitrarily large. The singularities may be covered within a black hole, or visible to faraway observers in the universe. Thus, the final fate of a collapsing massive star is either a black hole or a visible naked singularity. We discuss here recent results and developments on the gravitational collapse of massive stars and possible observational implications when naked singularities happen in the universe. Large collapsing massive stars and the resulting space-time singularities may even provide a laboratory in the cosmos where one could test the unification possibilities of basic forces of nature.
The New Time Travelers: A Journey to the Frontiers of Physics
Author: David Toomey
Publisher: W. W. Norton & Company
Published: 2011-02-14
Total Pages: 397
ISBN-13: 039307837X
DOWNLOAD EBOOK →The story of physicists' quest to answer a mind-boggling question: How can we travel through time? Since H. G. Wells' 1895 classic The Time Machine, readers of science fiction have puzzled over the paradoxes of time travel. What would happen if a time traveler tried to change history? Would some force or law of nature prevent him? Or would his action produce a "new" history, branching away from the original?In the last decade of the twentieth century a group of theoretical physicists at the California Institute of Technology undertook a serious investigation of the possibility of pastward time travel, inspiring a serious and sustained study that engaged more than thirty physicists working at universities and institutes around the world.Many of the figures involved are familiar: Einstein, Stephen Hawking and Kip Thorne; others are names known mostly to physicists. These are the new time travelers, and this is the story of their work--a profoundly human endeavor marked by advances, retreats, and no small share of surprises. It is a fantastic journey to the frontiers of physics. Some images in the ebook are not displayed owing to permissions issues.
New Ideas Concerning Black Holes and the Universe
Author: Eugene Terry Tatum
Publisher:
Published: 2020-01-22
Total Pages: 116
ISBN-13: 1839685417
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