The Observational Consequences of Primordial Fields PDF Download
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Author: Chiara Caprini
Publisher:
ISBN:
Category : Astrophysics
Languages : en
Pages : 336
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Book Description
Author: Chiara Caprini
Publisher:
ISBN:
Category : Astrophysics
Languages : en
Pages : 336
Get Book Here
Book Description
Author: Chiara Caprini
Publisher: LAP Lambert Academic Publishing
ISBN: 9783843373104
Category :
Languages : en
Pages : 192
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Book Description
The use of the observational properties of the Cosmic Microwave Background radiation (CMB) to constrain the presence of different components in the universe, which perturb the background metric, is nowadays a well-established methodology in Cosmology. In this thesis the methodology is applied to three cases: primordial magnetic fields, a hypothetical electric charge asymmetry in the universe, and the inflaton field. The main part of the thesis deals with the problem of cosmic magnetic fields: assuming that they were formed in the early universe, we derive upper bounds on their intensity and analyse the imprint of a helical magnetic field on the CMB. We also study the effect of a global electric charge asymmetry, and deduce upper limits on the charge of some fundamental particles, partly improving the current ones from laboratory experiments. The first chapters of the thesis are dedicated to the review of the theoretical framework at the basis of the treated topics: we give an overview of the physics of cosmic magnetic fields, from observations to the theory of their generation, of cosmological linear perturbation theory and of the formalism of CMB anisotropies and polarisation.
Author: David H. Lyth
Publisher: Cambridge University Press
ISBN: 1139643746
Category : Science
Languages : en
Pages : 516
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Book Description
The origin and evolution of the primordial perturbation is the key to understanding structure formation in the earliest stages of the Universe. It carries clues to the types of physical phenomena active in that extreme high-density environment. Through its evolution, generating first the observed cosmic microwave background anisotropies and later the distribution of galaxies and dark matter in the Universe, it probes the properties and dynamics of the present Universe. This graduate-level textbook gives a thorough account of theoretical cosmology and perturbations in the early Universe, describing their observational consequences and showing how to relate such observations to primordial physical processes, particularly cosmological inflation. With ambitious observational programmes complementing ever-increasing sophistication in theoretical modelling, cosmological studies will remain at the cutting edge of astrophysical studies for the foreseeable future.
Author: Günter Sigl
Publisher: Springer
ISBN: 9462392439
Category : Science
Languages : en
Pages : 877
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Book Description
This books aims at giving an overview over theoretical and phenomenological aspects of particle astrophysics and particle cosmology. To be of interest for both students and researchers in neighboring fields of physics, it keeps a balance between well established foundations that will not significantly change in the future and a more in-depth treatment of selected subfields in which significant new developments have been taking place recently. These include high energy particle astrophysics, such as cosmic high energy neutrinos, the interplay between detection techniques of dark matter in the laboratory and in high energy cosmic radiation, axion-like particles, and relics of the early Universe such as primordial magnetic fields and gravitational waves. It also contains exercises and thus will be suitable for both introductory and advanced courses in astroparticle physics.
Author: David H. Lyth
Publisher: Cambridge University Press
ISBN: 052182849X
Category : Science
Languages : en
Pages : 516
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Book Description
The origin and evolution of the primordial perturbation is key to understanding structure formation in the earliest stages of the Universe. Giving a thorough account of theoretical cosmology and perturbations in the early Universe, this graduate-level textbook describes their observational consequences and how such observations relate to primordial physical processes.
Author: Anvar Shukurov
Publisher: Cambridge University Press
ISBN: 0521861055
Category : Science
Languages : en
Pages : 641
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Book Description
This self-contained introduction to astrophysical magnetic fields provides a comprehensive review of the current state of the field and a critical discussion of the latest research. Its emphasis on results that are likely to form the basis for future progress benefits a broad audience of advanced students and active researchers.
Author: Mauro D'Onofrio
Publisher: Springer Science & Business Media
ISBN: 3642007929
Category : Science
Languages : en
Pages : 552
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Book Description
Are we living in the "golden age" of cosmology? Are we close to understanding the nature of the unknown ingredients of the currently most accepted cosmological model and the physics of the early Universe? Or are we instead approaching a paradigm shift? What is dark matter and does it exist? How is it distributed around galaxies and clusters? Is the scientific community open to alternative ideas that may prompt a new scientific revolution - as the Copernican revolution did in Galileo's time? Do other types of supernovae exist that can be of interest for cosmology? Why have quasars never been effectively used as standard candles? Can you tell us about the scientific adventure of COBE? How does the extraction of the Cosmic Microwave Background anisotropy depend on the subtraction of the various astrophysical foregrounds? These, among many others, are the astrophysical, philosophical and sociological questions surrounding modern cosmology and the scientific community that Mauro D'Onofrio and Carlo Burigana pose to some of the most prominent cosmologists of our time. Triggered by these questions and in the spirit of Galileo's book "Dialogue Concerning the Two Chief World Systems" the roughly 40 interview partners reply in the form of essays, with a critical frankness not normally found in reviews, monographs or textbooks.
Author: Patrick Peter
Publisher: Oxford University Press
ISBN: 0191549258
Category : Science
Languages : en
Pages :
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Book Description
This book provides an extensive survey of all the physics necessary to understand the current developments in the field of fundamental cosmology, as well as an overview of the observational data and methods. It will help students to get into research by providing definitions and main techniques and ideas discussed today. The book is divided into three parts. Part 1 summarises the fundamentals in theoretical physics needed in cosmology (general relativity, field theory, particle physics). Part 2 describes the standard model of cosmology and includes cosmological solutions of Einstein equations, the hot big bang model, cosmological perturbation theory, cosmic microwave background anisotropies, lensing and evidence for dark matter, and inflation. Part 3 describes extensions of this model and opens up current research in the field: scalar-tensor theories, supersymmetry, the cosmological constant problem and acceleration of the universe, topology of the universe, grand unification and baryogenesis, topological defects and phase transitions, string inspired cosmology including branes and the latest developments. The book provides details of all derivations and leads the student up to the level of research articles.
Author: Konstantinos Dimopoulos
Publisher:
ISBN:
Category : Cosmic magnetic fields
Languages : en
Pages : 430
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Book Description
Author: Norma G. Sànchez
Publisher: Springer Science & Business Media
ISBN: 940115046X
Category : Science
Languages : en
Pages : 764
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Book Description
This NATO Advanced Study Institute course provided an updated understanding, from a fundamental and deep point of view, of the progress and current problems in the early universe, cosmic microwave background radiation, large-scale struc ture, dark matter problem, and the interplay between them. Emphasis was placed on the mutual impact of fundamental physics and cosmology, both at the theo retical and experimental or observational levels, within a deep and well defined programme, and a global unifying view, which, in addition, provides of careful inter-disciplinarity. In addition, each course of this series introduced and promoted topics or sub jects which, although not of a purely astrophysical or cosmological nature, were of relevant physical interest for astrophysics and cosmology. Deep understanding, clarification, synthesis, and careful interdisciplinarity within a fundamental physics framework, were the main goals of the course. Lectures ranged from a motivation and pedagogical introduction for students and participants not directly working in the field to the latest developments and most recent results. All lectures were plenary, had the same duration, and were followed by a discus sion. The course brought together experimentalists and theoreticans physicists, astro physicists and astronomers from a wide variety of backgrounds, including young scientists at the post-doctoral level, senior scientists and advanced graduate stu dents as well.
