Probing Cosmic Dark Matter And Dark Energy With Weak Gravitational Lensing Statistics
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Probing Cosmic Dark Matter And Dark Energy With Weak Gravitational Lensing Statistics
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Author : Masato Shirasaki
language : en
Publisher: Springer
Release Date : 2015-11-18
Probing Cosmic Dark Matter And Dark Energy With Weak Gravitational Lensing Statistics written by Masato Shirasaki and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-11-18 with Science categories.
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.
Understanding Dark Matter And Dark Energy
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Author : Hebooks
language : en
Publisher: Hebooks
Release Date :
Understanding Dark Matter And Dark Energy written by Hebooks and has been published by Hebooks this book supported file pdf, txt, epub, kindle and other format this book has been release on with Antiques & Collectibles categories.
"Understanding Dark Matter and Dark Energy: Illuminating the Universe's Secrets Through the Lens of Dark Matter and Dark Energy" takes readers on an exhilarating journey through the cosmos, exploring the mysteries of two of the most elusive and captivating phenomena in modern astrophysics. From the depths of space to the innermost realms of theoretical physics, this book delves into the intricate web of evidence, theories, and technological advancements that have revolutionized our understanding of dark matter and dark energy. With clarity and insight, it navigates the complexities of these enigmatic entities, shedding light on their profound implications for the universe and our place within it. Readers will embark on a captivating odyssey through the universe's history, from the primordial soup of the early cosmos to the cosmic web of galaxies that populate the vast expanse of space. Along the way, they will encounter cutting-edge research, groundbreaking discoveries, and the latest advancements in observational techniques and theoretical frameworks, providing a comprehensive overview of the current state of dark matter and dark energy research. Drawing on interdisciplinary perspectives from astrophysics, particle physics, cosmology, and beyond, this book offers a holistic understanding of dark matter and dark energy, weaving together insights from theory, observation, and experimentation. It explores the implications of these phenomena for our understanding of the universe's structure, evolution, and ultimate fate, inspiring wonder, curiosity, and a sense of awe at the beauty and complexity of the cosmos. Richly illustrated and engagingly written, "Understanding Dark Matter and Dark Energy" is an essential guide for anyone seeking to unravel the mysteries of the universe. Whether you are a seasoned astrophysicist, an enthusiastic amateur astronomer, or simply a curious reader with a passion for science, this book invites you to embark on a voyage of discovery to the farthest reaches of the cosmos, where the secrets of dark matter and dark energy await.
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.
Dark Energy Survey The The Story Of A Cosmological Experiment
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Author : Ofer Lahav
language : en
Publisher: World Scientific
Release Date : 2020-08-19
Dark Energy Survey The The Story Of A Cosmological Experiment written by Ofer Lahav and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-08-19 with Science categories.
'The past cultures of astronomy and physics evolved their own distinct personalities. The book describes an important milestone in the history of the unification of the two fields and provides an excellent summary of the methods used to explore one of the greatest mysteries in physics today: dark energy.'Physics TodayThis book is about the Dark Energy Survey, a cosmological experiment designed to investigate the physical nature of dark energy by measuring its effect on the expansion history of the universe and on the growth of large-scale structure. The survey saw first light in 2012, after a decade of planning, and completed observations in 2019. The collaboration designed and built a 570-megapixel camera and installed it on the four-metre Blanco telescope at the Cerro Tololo Inter-American Observatory in the Chilean Andes. The survey data yielded a three-dimensional map of over 300 million galaxies and a catalogue of thousands of supernovae. Analysis of the early data has confirmed remarkably accurately the model of cold dark matter and a cosmological constant. The survey has also offered new insights into galaxies, supernovae, stellar evolution, solar system objects and the nature of gravitational wave events.A project of this scale required the long-term commitment of hundreds of scientists from institutions all over the world. The chapters in the first three sections of the book were either written by these scientists or based on interviews with them. These chapters explain, for a non-specialist reader, the science analysis involved. They also describe how the project was conceived, and chronicle some of the many and diverse challenges involved in advancing our understanding of the universe. The final section is trans-disciplinary, including inputs from a philosopher, an anthropologist, visual artists and a poet. Scientific collaborations are human endeavours and the book aims to convey a sense of the wider context within which science comes about.This book is addressed to scientists, decision makers, social scientists and engineers, as well as to anyone with an interest in contemporary cosmology and astrophysics.Related Link(s)
Dark Matter In Astroparticle And Particle Physics
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Author : Hans Volker Klapdor-Kleingrothaus
language : en
Publisher: World Scientific
Release Date : 2008
Dark Matter In Astroparticle And Particle Physics written by Hans Volker Klapdor-Kleingrothaus and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Science categories.
Social networks have emerged as a major trend in computing and social paradigms in the past few years. The social network model helps to inform the study of community behavior, allowing qualitative and quantitative assessments of how people communicate and the rules that govern communication. Social Networking and Community Behavior Modeling: Qualitative and Quantitative Measures provides a clear and consolidated view of current social network models. This work explores new methods for modeling, characterizing, and constructing social networks. Chapters contained in this book study critical security issues confronting social networking, the emergence of new mobile social networking devices and applications, network robustness, and how social networks impact the business aspects of organizations.
Highlights Of Spanish Astrophysics Iv
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Author : Francesca Figueras
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-07-19
Highlights Of Spanish Astrophysics Iv written by Francesca Figueras 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 2007-07-19 with Science categories.
This volume documents the contributions presented at the Seventh Scientific Meeting of the Spanish Astronomical Society (Sociedad Española de Astronomía, SEA). The event bought together 301 participants who presented 161 contributed talks and 120 posters, the greatest number of contributions in the history of the meeting. The fact that most exciting items of the current astronomical research were addressed in the meeting is proof of the good health of the SEA, a consolidated organization founded fifteen years ago in Barcelona.
The Early Universe And Observational Cosmology
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Author : Nora Bretón
language : en
Publisher: Springer Science & Business Media
Release Date : 2004-05-14
The Early Universe And Observational Cosmology written by Nora Bretón 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 2004-05-14 with Science categories.
Spectacular experimental advances in observational cosmology have helped raise cosmology to the status of a genuine science, and it is now possible to test many speculative theoretical issues and to obtain reliable values for the key parameters defining our observable universe. This book has emerged from selected lectures given at the Mexican School on Gravitation and Mathematical Physics by leaders in their field. Conceived as both a broad survey and as topical coverage of the latest developments, it will benefit graduate students and newcomers to this field and provide researchers in the field with a modern source of reference.
Particle Dark Matter
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Author : Gianfranco Bertone
language : en
Publisher: Cambridge University Press
Release Date : 2010-01-07
Particle Dark Matter written by Gianfranco Bertone 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 2010-01-07 with Science categories.
Dark matter is among the most important open problems in modern physics. Aimed at graduate students and researchers, this book describes the theoretical and experimental aspects of the dark matter problem in particle physics, astrophysics and cosmology. Featuring contributions from 48 leading theorists and experimentalists, it presents many aspects, from astrophysical observations to particle physics candidates, and from the prospects for detection at colliders to direct and indirect searches. The book introduces observational evidence for dark matter along with a detailed discussion of the state-of-the-art of numerical simulations and alternative explanations in terms of modified gravity. It then moves on to the candidates arising from theories beyond the Standard Model of particle physics, and to the prospects for detection at accelerators. It concludes by looking at direct and indirect dark matter searches, and the prospects for detecting the particle nature of dark matter with astrophysical experiments.
Advances In Machine Learning And Data Mining For Astronomy
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Author : Michael J. Way
language : en
Publisher: CRC Press
Release Date : 2012-03-29
Advances In Machine Learning And Data Mining For Astronomy written by Michael J. Way and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-03-29 with Computers categories.
Advances in Machine Learning and Data Mining for Astronomy documents numerous successful collaborations among computer scientists, statisticians, and astronomers who illustrate the application of state-of-the-art machine learning and data mining techniques in astronomy. Due to the massive amount and complexity of data in most scientific disciplines, the material discussed in this text transcends traditional boundaries between various areas in the sciences and computer science. The book’s introductory part provides context to issues in the astronomical sciences that are also important to health, social, and physical sciences, particularly probabilistic and statistical aspects of classification and cluster analysis. The next part describes a number of astrophysics case studies that leverage a range of machine learning and data mining technologies. In the last part, developers of algorithms and practitioners of machine learning and data mining show how these tools and techniques are used in astronomical applications. With contributions from leading astronomers and computer scientists, this book is a practical guide to many of the most important developments in machine learning, data mining, and statistics. It explores how these advances can solve current and future problems in astronomy and looks at how they could lead to the creation of entirely new algorithms within the data mining community.
Principles Of Gravitational Lensing
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Author : Arthur B. Congdon
language : en
Publisher: Springer
Release Date : 2018-12-01
Principles Of Gravitational Lensing written by Arthur B. Congdon and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-12-01 with Science categories.
This textbook provides an introduction to gravitational lensing, which has become an invaluable tool in modern astrophysics, with applications that range from finding planets orbiting distant stars to understanding how dark matter and dark energy conspired to form the cosmic structures we see today. Principles of Gravitational Lensing begins with Einstein’s prediction that gravity bends light, and shows how that fundamental idea has spawned a rich field of study over the past century. The gravitational deflection of light was first detected by Eddington during a solar eclipse in May 1919, launching Einstein and his theory of relativity into public view. Yet the possibility of using the phenomenon to unlock mysteries of the Universe seemed remote, given the technology of the day. Theoretical work was carried out sporadically over the next six decades, but only with the discovery of the system Q0957+561 in 1979 was gravitational lensing transformed from a curiosity of general relativity into a practical observational tool. This book describes how the three subfields known as strong lensing, weak lensing, and microlensing have grown independently but become increasingly intertwined. Drawing on their research experience, Congdon and Keeton begin with the basic physics of light bending, then present the mathematical foundations of gravitational lensing, building up to current research topics in a clear and systematic way. Relevant background material from physics and mathematics is included, making the book self-contained. The derivations and explanations are supplemented by exercises designed to help students master the theoretical concepts as well as the methods that drive current research. An extensive bibliography guides those wishing to delve more deeply into particular areas of interest. Principles of Gravitational Lensing is ideal for advanced students and seasoned researchers looking to penetrate this thriving subject and even contribute research of their own.