Gravitational Lensing And Microlensing

Gravitational Lensing And Microlensing PDF Author: Silvia Mollerach
Publisher: World Scientific
ISBN: 9814489352
Category : Science
Languages : en
Pages : 204

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Book Description
This book provides a comprehensive and self-contained exposition of gravitational lensing phenomena. It presents the up-to-date status of gravitational lensing and microlensing, covering the cosmological applications of the observed lensing by galaxies, clusters and the large scale structures, as well as the microlensing searches in the Local Group and its applications to unveil the nature of the galactic dark matter, the search for planetary objects and the distribution of faint stars in our galaxy.Gravitational Lensing and Microlensing is pitched at the level of the graduate student interested in the issues of astrophysics and cosmology, and should be useful for specialist researchers as well.

Gravitational Lensing And Microlensing

Gravitational Lensing And Microlensing PDF Author: Silvia Mollerach
Publisher: World Scientific
ISBN: 9814489352
Category : Science
Languages : en
Pages : 204

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Book Description
This book provides a comprehensive and self-contained exposition of gravitational lensing phenomena. It presents the up-to-date status of gravitational lensing and microlensing, covering the cosmological applications of the observed lensing by galaxies, clusters and the large scale structures, as well as the microlensing searches in the Local Group and its applications to unveil the nature of the galactic dark matter, the search for planetary objects and the distribution of faint stars in our galaxy.Gravitational Lensing and Microlensing is pitched at the level of the graduate student interested in the issues of astrophysics and cosmology, and should be useful for specialist researchers as well.

A Course in Cosmology

A Course in Cosmology PDF Author: Dragan Huterer
Publisher: Cambridge University Press
ISBN: 1009082248
Category : Science
Languages : en
Pages : 450

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Book Description
This new graduate textbook adopts a pedagogical approach to contemporary cosmology that enables readers to build an intuitive understanding of theory and data, and of how they interact, which is where the greatest advances in the field are currently being made. Using analogies, intuitive explanations of complex topics, worked examples and computational problems, the book begins with the physics of the early universe, and goes on to cover key concepts such as inflation, dark matter and dark energy, large‐scale structure, and cosmic microwave background. Computational and data analysis techniques, and statistics, are integrated throughout the text, particularly in the chapters on late-universe cosmology, while another chapter is entirely devoted to the basics of statistical methods. A solutions manual for end-of-chapter problems is available to instructors, and suggested syllabi, based on different course lengths and emphasis, can be found in the Preface. Online computer code and datasets enhance the student learning experience.

Singularity Theory and Gravitational Lensing

Singularity Theory and Gravitational Lensing PDF Author: Arlie O. Petters
Publisher: Springer Science & Business Media
ISBN: 1461201454
Category : Science
Languages : en
Pages : 616

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Book Description
This monograph is the first to develop a mathematical theory of gravitational lensing. The theory applies to any finite number of deflector planes and highlights the distinctions between single and multiple plane lensing. Introductory material in Parts I and II present historical highlights and the astrophysical aspects of the subject. Part III employs the ideas and results of singularity theory to put gravitational lensing on a rigorous mathematical foundation.

Relativistic Astrophysics

Relativistic Astrophysics PDF Author: Harald Riffert
Publisher: Springer Science & Business Media
ISBN: 3663112942
Category : Science
Languages : en
Pages : 291

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Book Description
During the first decades after Einstein had developed his Theory of General Relativity, the main effort was to understand the theory and verify it experimentically. Meanwhile Genral Relativity is one of the experimentally best confirmed theories and has become a powerful tool for the investigation of cosmic processes where strong gravitational fields are involved. This book contains 16 contributions from well-known experts giving a broad overview for non-specialists who want to learn how to purely academic issues like gravitational wave detectors are now put into reality.

An Investigation of Cosmological Dark Matter Using Weak Gravitational Lensing

An Investigation of Cosmological Dark Matter Using Weak Gravitational Lensing PDF Author: R. Michael Jarvis
Publisher:
ISBN:
Category :
Languages : en
Pages : 508

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Book Description


Impact of Gravitational Lensing on Cosmology (IAU S225)

Impact of Gravitational Lensing on Cosmology (IAU S225) PDF Author: International Astronomical Union. Symposium
Publisher: Cambridge University Press
ISBN: 9780521851961
Category : Science
Languages : en
Pages : 478

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Book Description
This book contains the proceedings of the International Astronomical Union Symposium no. 225, held in July 2004 at the Ecole Polytechnique Federale de Lausanne (EPFL), in Lausanne, Switzerland. The meeting focused on the applications of gravitational lensing to cosmological physics, and this book summarizes the most recent theoretical and observational developments. With chapters written by leading scientists in the field, this is a valuable resource for professional astronomers and graduate students in astronomy, physics and astro-particle physics.

Gravitational Lensing: Strong, Weak and Micro

Gravitational Lensing: Strong, Weak and Micro PDF Author: Peter Schneider
Publisher: Springer Science & Business Media
ISBN: 3540303103
Category : Science
Languages : en
Pages : 565

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Book Description
The observation, in 1919 by A.S. Eddington and collaborators, of the gra- tational de?ection of light by the Sun proved one of the many predictions of Einstein’s Theory of General Relativity: The Sun was the ?rst example of a gravitational lens. In 1936, Albert Einstein published an article in which he suggested - ing stars as gravitational lenses. A year later, Fritz Zwicky pointed out that galaxies would act as lenses much more likely than stars, and also gave a list of possible applications, as a means to determine the dark matter content of galaxies and clusters of galaxies. It was only in 1979 that the ?rst example of an extragalactic gravitational lens was provided by the observation of the distant quasar QSO 0957+0561, by D. Walsh, R.F. Carswell, and R.J. Weymann. A few years later, the ?rst lens showing images in the form of arcs was detected. The theory, observations, and applications of gravitational lensing cons- tute one of the most rapidly growing branches of astrophysics. The gravi- tional de?ection of light generated by mass concentrations along a light path producesmagni?cation,multiplicity,anddistortionofimages,anddelaysp- ton propagation from one line of sight relative to another. The huge amount of scienti?c work produced over the last decade on gravitational lensing has clearly revealed its already substantial and wide impact, and its potential for future astrophysical applications.

Fundamental Parameters in Cosmology

Fundamental Parameters in Cosmology PDF Author: J. Thanh Van Tran
Publisher: Atlantica Séguier Frontières
ISBN: 9782863322338
Category : Cosmology
Languages : en
Pages : 466

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Book Description


Probing Cosmic Dark Matter and Dark Energy with Weak Gravitational Lensing Statistics

Probing Cosmic Dark Matter and Dark Energy with Weak Gravitational Lensing Statistics PDF Author: Masato Shirasaki
Publisher: Springer
ISBN: 9812877967
Category : Science
Languages : en
Pages : 144

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Book Description
In this book the applicability and the utility of two statistical approaches for understanding dark energy and dark matter with gravitational lensing measurement are introduced. For cosmological constraints on the nature of dark energy, morphological statistics called Minkowski functionals (MFs) to extract the non-Gaussian information of gravitational lensing are studied. Measuring lensing MFs from the Canada–France–Hawaii Telescope Lensing survey (CFHTLenS), the author clearly shows that MFs can be powerful statistics beyond the conventional approach with the two-point correlation function. Combined with the two-point correlation function, MFs can constrain the equation of state of dark energy with a precision level of approximately 3–4 % in upcoming surveys with sky coverage of 20,000 square degrees. On the topic of dark matter, the author studied the cross-correlation of gravitational lensing and the extragalactic gamma-ray background (EGB). Dark matter annihilation is among the potential contributors to the EGB. The cross-correlation is a powerful probe of signatures of dark matter annihilation, because both cosmic shear and gamma-ray emission originate directly from the same dark matter distribution in the universe. The first measurement of the cross-correlation using a real data set obtained from CFHTLenS and the Fermi Large Area Telescope was performed. Comparing the result with theoretical predictions, an independent constraint was placed on dark matter annihilation. Future lensing surveys will be useful to constrain on the canonical value of annihilation cross section for a wide range of mass of dark matter annihilation. Future lensing surveys will be useful to constrain on the canonical value of annihilation cross section for a wide range of mass of dark matter.

Data Analysis in Cosmology

Data Analysis in Cosmology PDF Author: Vicent J. Martinez
Publisher: Springer
ISBN: 3540447679
Category : Science
Languages : en
Pages : 636

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Book Description
The amount of cosmological data has dramatically increased in the past decades due to an unprecedented development of telescopes, detectors and satellites. Efficiently handling and analysing new data of the order of terabytes per day requires not only computer power to be processed but also the development of sophisticated algorithms and pipelines. Aiming at students and researchers the lecture notes in this volume explain in pedagogical manner the best techniques used to extract information from cosmological data, as well as reliable methods that should help us improve our view of the universe.