Microwave Foregrounds
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Diffuse Radio Foregrounds
Author | : Matias Vidal Navarro |
Publsiher | : Springer |
Total Pages | : 196 |
Release | : 2015-12-15 |
Genre | : Science |
ISBN | : 9783319262635 |
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This extensive thesis work covers several topics, including intensity and polarization, focusing on a new polarization bias reduction method. Vidal studied data from the WMAP satellite, which is low signal-to-noise and as such has to be corrected for polarization bias. He presents a new method for correcting the data, based on knowledge of the underlying angle of polarization. Using this novel method, he sets upper limits for the polarization fraction of regions known to emit significant amounts of spinning dust emissions. He also studies the large-scale loops and filaments that dominate the synchrotron sky. The dominant features are investigated, including identification of several new features. For the North Polar Spur, a model of an expanding shell in the vicinity of the Sun is tested, which appears to fit the data. Implications for CMB polarization surveys are also discussed. In addition, Vidal presents interferometric observations of the dark cloud LDN 1780 at 31 GHz and shows that the spinning dust hypothesis can explain the radio properties observed.
Current Topics in Astrofundamental Physics The Cosmic Microwave Background
Author | : Norma G. Sànchez |
Publsiher | : Springer Science & Business Media |
Total Pages | : 656 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 9789401007481 |
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This NATO Advanced Study Institute provided an up dated 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 structure, dark matter problem, and the interplay between them. The focus was placed on the Cosmic Microwave Background Radiation. Emphasis was given to the mutual impact of fundamental physics and cosmology, both at theoretical 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. Special Lectures were devoted to neutrinos in astrophysics and high energy astrophysics. In addition, each Course of this series, introduced and promoted topics or subjects, which, although not being of purely astrophysical or cosmological nature, were of relevant physical interest for astrophysics and cosmology. Deep understanding, clarification, synthesis, careful interdisciplinarity within a fundamental physics framework, werethe maingoals ofthe course. Lectures ranged from a motivation and pedagogical introduction for students and participants not directly working in the field to the latest developmentsand most recent results. All Lectures were plenary, had the same duration and were followed by a discussion. The Course brought together experimentalists and theoretical physicists, astrophysicists and astronomers from a variety of backgrounds, including young scientists at post-doctoral level, senior scientists and advanced graduatestudentsas well.
The Physics of the Cosmic Microwave Background
Author | : Pavel D. Naselsky,Dmitry I. Novikov,Igor D. Novikov |
Publsiher | : Cambridge University Press |
Total Pages | : 272 |
Release | : 2006-08-17 |
Genre | : Science |
ISBN | : 9781139458375 |
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Spectacular observational breakthroughs, particularly by the WMAP satellite, have led to a new epoch of CMB science long after its original discovery. Taking a physical approach, the authors of this volume probe the problem of the 'darkness' of the Universe: the origin and evolution of dark energy and matter in the cosmos. Starting with the observational background of modern cosmology, they provide an accessible review of this fascinating yet complex subject. Topics discussed include the kinetics of the electromagnetic radiation in the Universe, the ionization history of cosmic plamas, the origin of primordial perturbations in light of the inflation paradigm, and the formation of anisotropy and polarization of the CMB. This fascinating review will be valuable to advanced students and researchers in cosmology.
Data Analysis in Cosmology
Author | : Vicent J. Martinez,Enn Saar,Enrique Martinez Gonzales,Maria Jesus Pons-Borderia |
Publsiher | : Springer |
Total Pages | : 636 |
Release | : 2009-07-09 |
Genre | : Science |
ISBN | : 9783540447672 |
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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.
Structure Formation in the Universe
Author | : Robert G. Crittenden |
Publsiher | : Springer Science & Business Media |
Total Pages | : 380 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 9789401005401 |
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This book contains a series of lectures given at the NATO Advanced Study Institute (ASI) "Structure Formation in the Universe", held at the Isaac Newton Institute in Cambridge in August, 1999. The ASI was held at a critical juncture in the development of physical cosmology, when a flood of new data concerning the large scale structure of the Universe was just be coming available. There was an air of excitement and anticipation: would the standard theories fit the data, or would new ideas and models be re quired? Cosmology has long been a field of common interest between East and West, with many seminal contributions made by scientists working in the former Soviet Union and Eastern bloc. A major aim of the ASI was to bring together scientists from across the world to discuss exciting recent developments and strengthen links. However, a few months before the meeting it appeared that it might have to be cancelled. The war in the former Yugoslavia escalated and NATO began a protracted bombing cam paign against targets in Kosovo and Serbia. Many scientists felt uneasy about participating in a NATO-funded meeting in this situation. After a great deal of discussion, it was agreed that the developing East West conflict only heightened the need for further communication and that the school should go ahead as planned, but with a special session devoted to discussion of the legitimacy of NATO's actions.
A Search for the Cosmic Microwave Background Polarization and Foreground Containments
Author | : Slade J. Klawikowski |
Publsiher | : Unknown |
Total Pages | : 176 |
Release | : 2003 |
Genre | : Electronic Book |
ISBN | : WISC:89091046714 |
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Astrophysics Update
Author | : John Mason |
Publsiher | : Springer Science & Business Media |
Total Pages | : 344 |
Release | : 2003-12-02 |
Genre | : Science |
ISBN | : 3540406425 |
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Written by leading exponents in the field, this collection of timely reviews presents observational methods and the latest results of astronomical research as well as their theoretical foundations and interrelations, providing information and scientifically rigorous coverage.
Big Bang Leftovers in the Microwave
Author | : Eric Joseph Gawiser |
Publsiher | : Unknown |
Total Pages | : 388 |
Release | : 1999 |
Genre | : Electronic Book |
ISBN | : UCAL:C3443779 |
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