Theory Challenges Of The Accelerating Universe
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Theory Challenges Of The Accelerating Universe
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Author :
language : en
Publisher:
Release Date : 2007
Theory Challenges Of The Accelerating Universe written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
The accelerating expansion of the universe presents an exciting, fundamental challenge to the standard models of particle physics and cosmology. I highlight some of the outstanding challenges in both developing theoretical models and interpreting without bias the observational results from precision cosmology experiments in the next decade that will return data to help reveal the nature of the new physics. Examples given focus on distinguishing a new component of energy from a new law of gravity, and the effect of early dark energy on baryon acoustic oscillations.
Kinetic Theory In The Expanding Universe
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Author : Jeremy Bernstein
language : en
Publisher: Cambridge University Press
Release Date : 2004-08-19
Kinetic Theory In The Expanding Universe written by Jeremy Bernstein and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-08-19 with Science categories.
Kinetic Theory in the Expanding Universe is a self-contained exposition of the applications of kinetic theory to basic problems in modern cosmology, such as the role of stable and unstable massive neutrinos and the theory of cosmological helium production. There has been rapid development of the theory of the origin and evolution of the universe in recent years, stimulated, in large part, by new observations and theories in astrophysics and particle physics. Bernstein takes a different approach and studies what can be concluded from the application of kinetic theory, and in particular the Boltzmann equation and its solutions, to cosmological problems. He begins with a brief survey of the necessary relativity, cosmodynamics, and kinetic theory, before going on to discuss specific problems, such as the role of stable and unstable massive neutrinos, electron-positron annihilation and the theory of cosomological helium production. The focus is in obtaining both a theoretical understanding and concrete numerical results.
The Accelerating Universe
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Author : Mario Livio
language : en
Publisher: Turner Publishing Company
Release Date : 2008-05-02
The Accelerating Universe written by Mario Livio and has been published by Turner Publishing Company this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-05-02 with Science categories.
Advance Praise for The Accelerating Universe "The Accelerating Universe is not only an informative book about modern cosmology. It is rich storytelling and, above all, a celebration of the human mind in its quest for beauty in all things." —Alan Lightman, author of Einstein's Dreams "This is a wonderfully lucid account of the extraordinary discoveries that have made the last years a golden period for observational cosmology. But Mario Livio has not only given the reader one clear explanation after another of what astronomers are up to, he has used them to construct a provocative argument for the importance of aesthetics in the development of science and for the inseparability of science, art, and culture." —Lee Smolin, author of The Life of the Cosmos "What a pleasure to read! An exciting, simple account of the universe revealed by modern astronomy. Beautifully written, clearly presented, informed by scientific and philosophical insights." —John Bahcall, Institute for Advanced Study "A book with charm, beauty, elegance, and importance. As authoritative a journey as can be taken through modern cosmology." —Allan Sandage, Observatories of the Carnegie Institution of Washington
Kinetic Theory In The Expanding Universe
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Author : Jeremy Bernstein
language : en
Publisher: Cambridge University Press
Release Date : 1988-08-26
Kinetic Theory In The Expanding Universe written by Jeremy Bernstein and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988-08-26 with Science categories.
Kinetic Theory in the Expanding Universe is a self-contained exposition of the applications of kinetic theory to basic problems in modern cosmology, such as the role of stable and unstable massive neutrinos and the theory of cosmological helium production. There has been rapid development of the theory of the origin and evolution of the universe in recent years, stimulated, in large part, by new observations and theories in astrophysics and particle physics. Bernstein takes a different approach and studies what can be concluded from the application of kinetic theory, and in particular the Boltzmann equation and its solutions, to cosmological problems. He begins with a brief survey of the necessary relativity, cosmodynamics, and kinetic theory, before going on to discuss specific problems, such as the role of stable and unstable massive neutrinos, electron-positron annihilation and the theory of cosomological helium production. The focus is in obtaining both a theoretical understanding and concrete numerical results.
The Accelerating Expansion Of The Universe
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Author : Paul F. Kisak
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2017-07-15
The Accelerating Expansion Of The Universe written by Paul F. Kisak and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-07-15 with categories.
11.3 billion years ago a star exploded. It is framed by the constellation Ursa Major. It was photographed in 1997 and it's impact on cosmology theory is still being felt. This exploding star is the Supernova 1997ff type Ia. The discovery and analysis of the radiation that emanates from SN 1997ff is providing support for the theory of "The Accelerating Expansion of our Universe," "Dark Matter," and "Dark Energy." The Hubble discovery also reveals that the universe only recently began speeding up, a discovery that suggests the universe is expanding more quickly than in the past, but there were alternate explanations. The accelerating expansion of the universe is the observation that the universe appears to be expanding at an increasing rate, so that the velocity at which a distant galaxy is receding from the observer is continuously increasing with time. The accelerated expansion was discovered in 1998, by two independent projects, the Supernova Cosmology Project and the High-Z Supernova Search Team, which both used distant type Ia supernovae as standard candles to measure the acceleration. The expansion of the universe is thought to have been accelerating since the universe entered its dark-energy-dominated era roughly 5 billion years ago. Within the framework of general relativity, an accelerating expansion can be accounted for by a positive value of the cosmological constant (Lambda), equivalent to the presence of a positive vacuum energy, dubbed "dark energy." While there are alternative possible explanations, the description assuming dark energy (positive Lambda) is used in the current standard model of cosmology, which also includes cold dark matter (CDM) and is known as the Lambda-CDM model. This book focuses on our Accelerating universe and the theories that support it.This book is designed to be a state of the art, superb academic reference work and provide an overview of the topic and give the reader a structured knowledge to familiarize yourself with the topic at the most affordable price possible. The accuracy and knowledge is of an international viewpoint as the edited articles represent the inputs of many knowledgeable individuals and some of the most current knowledge on the topic, based on the date of publication.
Dark Matter And Dark Energy
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Author : Sabino Matarrese
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-02-10
Dark Matter And Dark Energy written by Sabino Matarrese and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-02-10 with Science categories.
This book brings together reviews from leading international authorities on the developments in the study of dark matter and dark energy, as seen from both their cosmological and particle physics side. Studying the physical and astrophysical properties of the dark components of our Universe is a crucial step towards the ultimate goal of unveiling their nature. The work developed from a doctoral school sponsored by the Italian Society of General Relativity and Gravitation. The book starts with a concise introduction to the standard cosmological model, as well as with a presentation of the theory of linear perturbations around a homogeneous and isotropic background. It covers the particle physics and cosmological aspects of dark matter and (dynamical) dark energy, including a discussion of how modified theories of gravity could provide a possible candidate for dark energy. A detailed presentation is also given of the possible ways of testing the theory in terms of cosmic microwave background, galaxy redshift surveys and weak gravitational lensing observations. Included is a chapter reviewing extensively the direct and indirect methods of detection of the hypothetical dark matter particles. Also included is a self-contained introduction to the techniques and most important results of numerical (e.g. N-body) simulations in cosmology. " This volume will be useful to researchers, PhD and graduate students in Astrophysics, Cosmology Physics and Mathematics, who are interested in cosmology, dark matter and dark energy.
The Universe Of Fluctuations
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Author : B. G. Sidharth
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-03-30
The Universe Of Fluctuations written by B. G. Sidharth and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-03-30 with Science categories.
The Universe of Fluctuations: The Architecture of Spacetime and the Universe is a path-breaking work which proposes solutions to the impasse and crisis facing fundamental physics and cosmology. It describes a cosmological model based on fuzzy spacetime that has correctly predicted a dark-energy-driven acceleration of our expanding universe - with a small cosmological constant - at a time when the popular belief was quite the contrary. It describes how the Universe is made up of an underpinning of Planck oscillators in a Quantum Vacuum. This leads to, amongst other things, a characterization of gravitation as being distributional over the entire Universe, thereby providing an answer to a puzzle brought to light by Weinberg years ago and since overlooked. There is also a simple formula for the mass spectrum of all known elementary particles, based on QCD dynamics. Many other interesting ramifications and experimental tests for the future are also discussed. This apart, there is a brief survey of some of the existing theories. The book is accessible to junior and senior researchers in High Energy Physics and Cosmology as well as the serious graduate student in Physics.
The Accelerating Universe
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Author : Balasubramanian Ananthanarayan
language : en
Publisher:
Release Date : 2021
The Accelerating Universe written by Balasubramanian Ananthanarayan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with categories.
Discover The Big Bang And The Secrets Of Our Universe A New Theory
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Author : Saoussan Kallel-Jallouli
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-05-23
Discover The Big Bang And The Secrets Of Our Universe A New Theory written by Saoussan Kallel-Jallouli and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-05-23 with categories.
The Big Bang theory asserts that our universe (space and time) was created out of a giant explosion, called the Big Bang. In this paper we shall try to find out about the origin of this explosion and to prove that, apparently, it doesn't violate the first law of thermodynamics, contrary to what is thought. We shall see that it is a natural phenomenon. Thus, we will be able to solve all the problems related to the Big Bang theory: What came before the Big Bang? How could have the universe been created? How can it expand uniformly? What is Dark Energy that is supposed to be the big challenge that causes acceleration of the universe? What is Dark Matter? Where do the relic neutrinos that fill the universe come from? What is the origin of the cosmic microwave background photons? What is the cause of temperature anisotropies that are observed in the Cosmic Microwave Background radiations (CMBR)? What is the cause of CMBR polarization? What is space? What is time? Can we guess how time can flow? Can we speak about absolute space? We will explain how the first star was born and understand how the Coriolis Effect is necessary for the building of many structures in the universe... To do that, we need many disciplines: Mathematical modeling, Astronomy, Physics, Chemistry, Geology, Weather... Besides, we need to recall some physical and chemical properties of water and to introduce many new definitions related to geology and weather... So that we can have a better understanding of our universe.
The Theory Behind The Present Accelerating Universe
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Author : Shuvendu Chakraborty
language : en
Publisher:
Release Date : 2011-11
The Theory Behind The Present Accelerating Universe written by Shuvendu Chakraborty and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-11 with categories.