Simulations Of Dark Energy Cosmologies

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Simulations Of Dark Energy Cosmologies


Simulations Of Dark Energy Cosmologies
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Simulations Of Dark Energy Cosmologies


Simulations Of Dark Energy Cosmologies
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Author : Elise Jennings
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-05-27

Simulations Of Dark Energy Cosmologies written by Elise Jennings 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 2012-05-27 with Science categories.


A major outstanding problem in physics is understanding the nature of the dark energy that is driving the accelerating expansion of the Universe. This thesis makes a significant contribution by demonstrating, for the first time, using state-of-the-art computer simulations, that the interpretation of future galaxy survey measurements is far more subtle than is widely assumed, and that a major revision to our models of these effects is urgently needed. The work contained in the thesis was used by the WiggleZ dark energy survey to measure the growth rate of cosmic structure in 2011 and had a direct impact on the design of the surveys to be conducted by the European Space Agency's Euclid mission, a 650 million euro project to measure dark energy.

Dark Matter And Dark Energy


Dark Matter And Dark Energy
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Author : Sabino Matarrese
language : en
Publisher: Springer
Release Date : 2014-10-12

Dark Matter And Dark Energy written by Sabino Matarrese and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-10-12 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.

Encyclopedia Of Cosmology The In 4 Volumes


Encyclopedia Of Cosmology The In 4 Volumes
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Author :
language : en
Publisher: World Scientific
Release Date : 2018-03-15

Encyclopedia Of Cosmology The In 4 Volumes written by and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-03-15 with Science categories.


The Encyclopedia of Cosmology, in four volumes, is a major, long-lasting, seminal reference at the graduate student level, laid out by the most prominent, respected researchers in the general field of Cosmology. These volumes will be a comprehensive review of the most important concepts and current status in the field, covering both theory and observation.One of the attractive features of the encyclopedia is that it is accompanied by supplementary materials including videos and simulations of the numerical computation. This will help the readers to better understand and visualize the concepts discussed.This encyclopedia is edited by Dr. Giovanni Fazio from Harvard Smithsonian Center for Astrophysics, with an advisory board comprised of renowned scientists: Lars Hernquist and Abraham Loeb (Harvard Smithsonian Center for Astrophysics), and Christopher McKee (UC Berkeley). Each volume is authored/edited by a specialist in the area: Galaxy Formation and Evolution written by Rennan Barkana (Tel Aviv University), Numerical Simulations in Cosmology edited by Kentaro Nagamine (Osaka University / University of Nevada), Dark Energy written by Shinji Tsujikawa (Tokyo University of Science), and Dark Matter written by Jihn E Kim (Seoul National University).

Dark Energy


Dark Energy
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Author : Yun Wang
language : en
Publisher: John Wiley & Sons
Release Date : 2009-12-15

Dark Energy written by Yun Wang and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-12-15 with Science categories.


A systematic, carefully authored review of our current observational and theoretical knowledge of dark energy. Providing a brief and concise overview, the book covers theory and experiment in equal detail, directly linking the two. A final section also looks at future developments. Indispensable for researchers entering this rapidly evolving field.

Cosmological Simulations For Precision Dark Energy Measurements With Wide Field Galaxy Surveys


Cosmological Simulations For Precision Dark Energy Measurements With Wide Field Galaxy Surveys
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Author : Joseph William DeRose
language : en
Publisher:
Release Date : 2019

Cosmological Simulations For Precision Dark Energy Measurements With Wide Field Galaxy Surveys written by Joseph William DeRose and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.


Current and upcoming cosmological surveys are turning their eyes towards the late time universe in an attempt to answer fundamental questions about its composition and the physical laws that govern it. Given the non-linear nature of the observables studied by these surveys, perturbative modeling approaches have limited faculty. Thus, non-perturbative simulation approaches are necessary in order to connect theory with observation and harness the statistical power contained in the deluge of data that will be collected in the coming years. In this thesis, I discuss a number of efforts, all centered around using simulations to interpret data and aid analyses with wide field galaxy surveys. The first part of this thesis will focuses on a model for galaxy formation based on the evolution of dark matter halos and subhalos in high resolution N-body simulations, and its extension to large volume, low resolution lightcone simulations. I then show the application of this model to the Dark Energy Survey (DES), the most precise weak lensing survey to date. In particular, I present the suite of simulations that I created with this model and show that it agrees well with the first year of DES (DES Y1) data. I will then demonstrate how this suite was used to test the analysis choices made in the DES Y1 analysis of weak lensing and galaxy clustering. Finally, I discuss an effort to use cosmological simulations as models for highly non-linear observables in galaxy surveys. First I will present a well validated suite of simulations suitable for this type of modeling, which efficiently spans a large cosmological parameter space. I will then overview the models that we built from these simulations, and the outlook for applying them to upcoming data in order to use it to its fullest capacity.

Probing Early Dark Energy And Primordial Non Gaussianity With Cosmological Simulations


Probing Early Dark Energy And Primordial Non Gaussianity With Cosmological Simulations
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Author : Margherita Grossi
language : en
Publisher:
Release Date : 2010

Probing Early Dark Energy And Primordial Non Gaussianity With Cosmological Simulations written by Margherita Grossi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.




Sources And Detection Of Dark Matter And Dark Energy In The Universe


Sources And Detection Of Dark Matter And Dark Energy In The Universe
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Author : David B. Cline
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-09

Sources And Detection Of Dark Matter And Dark Energy In The Universe written by David B. Cline 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 2013-03-09 with Science categories.


Dark matter research is one of the most fascinating and active fields among current high-profile scientific endeavours. It holds the key to all major breakthroughs to come in the fields of cosmology and astroparticle physics. The present volume is particularly concerned with the sources and the detection of dark matter and dark energy in the universe and will prove to be an invaluable research tool for all scientists who work in this field.