Extragalactic Background Radiation
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The Galactic And Extragalactic Background Radiation
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Author : International Astronomical Union. Symposium
language : en
Publisher: Springer Science & Business Media
Release Date : 1990-08-31
The Galactic And Extragalactic Background Radiation written by International Astronomical Union. Symposium 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 1990-08-31 with Science categories.
Proceedings of the 139th Symposium of the International Astronomical Union on `The Galactic and Extragalactic Background Radiation, held in Heidelberg, FRG, June 12-16, 1989
Extragalactic Background Radiation
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Author : Daniela Calzetti
language : en
Publisher: Cambridge University Press
Release Date : 1995-01-26
Extragalactic Background Radiation written by Daniela Calzetti 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 1995-01-26 with Science categories.
A collection of edited review articles from a workshop at the Space Telescope Science Institute which united observational astronomers and theorists to examine the extragalactic background radiation at all wavelengths.
The Galactic And Extragalactic Background Radiation
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Author : Stuart Bowyer
language : en
Publisher: Springer
Release Date : 1990-09-14
The Galactic And Extragalactic Background Radiation written by Stuart Bowyer and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990-09-14 with Science categories.
The galactic and extragalactic background radiation components are of major importance in astrophysical studies of a variety of problems related to galactic structure, interstellar matter, the distribution and evolution of galaxies and intergalactic matter, and cosmology. The back ground radiation is a unique source of information in cases where the source is of a truly diffuse nature, as with scattering and emission by interstellar dust and gas, or where the discrete emission sources are so faint (e. g. , very distant galaxies) that they can be observed only by their integrated emission. The galactic and extragalactic background must be discussed together because they are observationally entangled and their proper separation requires a knowledge of both components. The above points are equally valid for the entire electromag netic spectrum, from gamma rays to long radio waves. Thus, the study of the galactic and extragalactic background radiation is interdisciplinary in its character, and a multi wavelength approach would appear to be dictated by the nature of the topic. The proper separation of the galactic and extragalactic background components requires a knowledge of both. In addition, the foreground components, i. e. , zodiacal light, airglow, and atmospheric scattered light, must be treated carefully.
Examining The Big Bang And Diffuse Background Radiations
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Author : Menas Kafatos
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Examining The Big Bang And Diffuse Background Radiations written by Menas Kafatos 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 2012-12-06 with Science categories.
IAU Symposium No. 168, Examining the Big Bang and Diffuse Background Radiations, took place on August 23-26, 1994 at the XXIInd IAU General Assembly in the Hague, Netherlands. The meeting attracted a large number - over 250 - of astronomers, reflecting the strong interest engendered by the great advances in cosmology made in recent years. There is still a multitude of unresolved problems in modern cosmology and the symposium offered a wonderful occasion to examine them objectively, at a place where many leading workers in related fields gathered together. After the introduction by IAU President L. Woltjer and the historical background by Vice Present Virginia Trimble, the volume begins with reviews of the cosmic microwave radiation from COBE (Cosmic Background Explorer). Reviews of recent observations then extend from radio to infrared, visible light, ultraviolet, X-rays and gamma-rays. It is followed by theoretical models for the Big Bang and Inflation, and alternative views to the Big Bang. Following a discourse on Probes and Future Tests, the meeting ended with a Panel Discussion on `Major Unsolved Problems of Cosmology'. Some forty-four contributed papers - both oral and poster reports - are included after the invited talks and panel discussions.
The Galactic And Extragalactic Background Radiation
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Author : International Astronomical Union. Symposium
language : en
Publisher:
Release Date : 1990
The Galactic And Extragalactic Background Radiation written by International Astronomical Union. Symposium and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Cosmic background radiation categories.
The Galactic And Extragalactic Background Radiation
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Author : Stuart Bowyer
language : en
Publisher:
Release Date : 1990
The Galactic And Extragalactic Background Radiation written by Stuart Bowyer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with categories.
Galaxy Formation
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Author : Malcolm Longair
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-12-12
Galaxy Formation written by Malcolm Longair 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 2007-12-12 with Science categories.
Delineating the huge strides taken in cosmology in the past ten years, this much-anticipated second edition of Malcolm Longair's highly appreciated textbook has been extensively and thoroughly updated. It tells the story of modern astrophysical cosmology from the perspective of one of its most important and fundamental problems – how did the galaxies come about? Longair uses this approach to introduce the whole of what may be called "classical cosmology". What’s more, he describes how the study of the origin of galaxies and larger-scale structures in the Universe has provided us with direct information about the physics of the very early Universe.
Cosmic Rays At Earth
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Author : P.K.F. Grieder
language : en
Publisher: Elsevier
Release Date : 2001-07-27
Cosmic Rays At Earth written by P.K.F. Grieder and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-07-27 with Science categories.
In 1912 Victor Franz Hess made the revolutionary discovery that ionizing radiation is incident upon the Earth from outer space. He showed with ground-based and balloon-borne detectors that the intensity of the radiation did not change significantly between day and night. Consequently, the sun could not be regarded as the sources of this radiation and the question of its origin remained unanswered. Today, almost one hundred years later the question of the origin of the cosmic radiation still remains a mystery.Hess' discovery has given an enormous impetus to large areas of science, in particular to physics, and has played a major role in the formation of our current understanding of universal evolution. For example, the development of new fields of research such as elementary particle physics, modern astrophysics and cosmology are direct consequences of this discovery. Over the years the field of cosmic ray research has evolved in various directions: Firstly, the field of particle physics that was initiated by the discovery of many so-called elementary particles in the cosmic radiation. There is a strong trend from the accelerator physics community to reenter the field of cosmic ray physics, now under the name of astroparticle physics. Secondly, an important branch of cosmic ray physics that has rapidly evolved in conjunction with space exploration concerns the low energy portion of the cosmic ray spectrum. Thirdly, the branch of research that is concerned with the origin, acceleration and propagation of the cosmic radiation represents a great challenge for astrophysics, astronomy and cosmology. Presently very popular fields of research have rapidly evolved, such as high-energy gamma ray and neutrino astronomy. In addition, high-energy neutrino astronomy may soon initiate as a likely spin-off neutrino tomography of the Earth and thus open a unique new branch of geophysical research of the interior of the Earth. Finally, of considerable interest are the biological and medical aspects of the cosmic radiation because of it ionizing character and the inevitable irradiation to which we are exposed. This book is a reference manual for researchers and students of cosmic ray physics and associated fields and phenomena. It is not intended to be a tutorial. However, the book contains an adequate amount of background materials that its content should be useful to a broad community of scientists and professionals. The present book contains chiefly a data collection in compact form that covers the cosmic radiation in the vicinity of the Earth, in the Earth's atmosphere, at sea level and underground. Included are predominantly experimental but also theoretical data. In addition the book contains related data, definitions and important relations. The aim of this book is to offer the reader in a single volume a readily available comprehensive set of data that will save him the need of frequent time consuming literature searches.
The Early Observable Universe From Diffuse Backgrounds
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Author : Brigitte Rocca-Volmerange
language : en
Publisher: Atlantica Séguier Frontières
Release Date : 1991
The Early Observable Universe From Diffuse Backgrounds written by Brigitte Rocca-Volmerange and has been published by Atlantica Séguier Frontières this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Astrophysics categories.
The Cosmic Microwave Background 25 Years Later
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Author : N. Mandolesi
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
The Cosmic Microwave Background 25 Years Later written by N. Mandolesi 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 2012-12-06 with Science categories.
This book is the result of a Meeting held in L'Aquila (Italy) from the 19th to the 23rd of June 1989. The aim of the Meeting was to gather together the people actively working on the Cosmic Microwave Background radiation, both from an experimental and from a theoretical point of view. In view of the intensive current activity in this field, including ongoing (COBE) and forthcoming (RELIC II, ISO, AELITA, etc. ) space missions, a meeting fully dedicated to this important topic was timely. The meeting also celebrated the 25th anniversary of the Microwave Background discovery made in 1964 by the Nobel Prize winners A. Penzias and R. Wilson. We greatly regret that we were not able to have them at the Meeting. There is of course another person whose absence we regret, namely R. H. Dicke, who motivated a generation of experimentalists and theoreticians to open and study this new field of research. As organizers of the Meeting, we would like to express our gratitude to the people who contributed to its success. We want to thank the members of the Scientific Organizing Committee for their assistance, suggestions and encouragement, the invited speakers for their excellent presentations, and the chairmen for their help in handling the various Sessions. We would like to thank P. Palazzi for her help in secretarial work, dr. L.