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Author: R.D. Wolstencroft
Publisher: Springer Science & Business Media
ISBN: 9400930194
Category : Science
Languages : en
Pages : 403
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Book Description
The millimetre and submillimetre spectral region (300 to 3000 Ilm or 1000 to 100 GHz) was until recently one of the few spectral regimes not fully opened up for astronomical studies. Thanks both to improvements in detectors and receivers and to the construction of large telescopes at high altitude sites this situation is improving very rapidly. Three major telescopes have been built recently and are coming into operation during 1987 and 1988, namely the 15m James Clerk Maxwell Telescope (JCMT) and the lOAm Caltech Submillimetre Observatory (CSO) telescope, both located on Mauna Kea, Hawaii, and the 15 m Swedish -ESO telescope (SEST) in Chile. Because a very wide range of astronomical problems can be tackled with these major new facilities there is a great deal of interest from the many potential new users anxious to become familiar with this rapidly developing field. During 1986 it became clear to British and Dutch astronomers involved in planning the commissioning and operation of the JCMT, that a summer school in this field would greatly benefit the potential and actual JCMT user community. With financial support from the SERC and supplemented by a grant from the ZWO, the Summer School on 'Millimetre and Submillimetre Astronomy' was held at Stirling University from June 21 to 27, 1987.
Author: R.D. Wolstencroft
Publisher: Springer Science & Business Media
ISBN: 9400930194
Category : Science
Languages : en
Pages : 403
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Book Description
The millimetre and submillimetre spectral region (300 to 3000 Ilm or 1000 to 100 GHz) was until recently one of the few spectral regimes not fully opened up for astronomical studies. Thanks both to improvements in detectors and receivers and to the construction of large telescopes at high altitude sites this situation is improving very rapidly. Three major telescopes have been built recently and are coming into operation during 1987 and 1988, namely the 15m James Clerk Maxwell Telescope (JCMT) and the lOAm Caltech Submillimetre Observatory (CSO) telescope, both located on Mauna Kea, Hawaii, and the 15 m Swedish -ESO telescope (SEST) in Chile. Because a very wide range of astronomical problems can be tackled with these major new facilities there is a great deal of interest from the many potential new users anxious to become familiar with this rapidly developing field. During 1986 it became clear to British and Dutch astronomers involved in planning the commissioning and operation of the JCMT, that a summer school in this field would greatly benefit the potential and actual JCMT user community. With financial support from the SERC and supplemented by a grant from the ZWO, the Summer School on 'Millimetre and Submillimetre Astronomy' was held at Stirling University from June 21 to 27, 1987.
Author: Graeme D. Watt
Publisher: Springer Science & Business Media
ISBN: 9401568502
Category : Science
Languages : en
Pages : 330
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Book Description
G. M. Bernstein, M. L. Fischer, and P. L. Richards Department of Physics, University of California Berkeley, California 94720, U. S. A. J. B. Peterson Department of Physics, Princeton University Princeton, New Jersey 08540, U. S. A. T. Timusk Department of Physics, McMaster University Hamilton, Ontario L8S 4M1 , Canada ABSTRACT. Recent measurements of the diffuse background at millimeter wavelengths indicate no departure from a Planck spectrum near the peak of the blackbody curve. Anisotropy measurements indicate no structure, at the 2% level, in the recently detected submillimeter excess. We report here the results of an April 1987 balloon flight of an instrument designed to measure the spectrum of the cosmic background radiation from 1 mm to 3 mm. A description of the instrument can be found in Peterson, Richards, and Timusk (1985). Modifications were made to the apparatus and experimental procedure in order to identify and reduce systematic errors. Results from the latest flight indicate that two effects hamper the interpretation of the data. These systematic effects will be described in detail in a forthcoming publications; they are probably responsible for the non-Planckian spectrum measured by Woody and Richards (1981). Attempts to remove the systematic effects from our data yield the upper limits to the CBR brightness temperature in 4 bands from 1 mm to 3 mm. There is no evidence for an excess of radiation near the 2. 8 K blackbody peak.
Author: Guy Trangoš
Publisher: Taylor & Francis
ISBN: 1000869652
Category : Architecture
Languages : en
Pages : 187
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Book Description
The Spatialities of Radio Astronomy examines the multidisciplinary overlap between the spatial disciplines and the studies of science and technology through a comparative study of four of the world’s most important radio telescopes. Employing detailed analysis, historical research, interviews, personal observations, and various conceptual manoeuvres, Guy Trangoš reveals the depth of spatial process active at these scientific sites and the territories they traverse. Through the conceptual frameworks of territory, hyper-concentration, and contingency, Trangoš interprets the telescope as exploded across space and time, present in multiple connected sites simultaneously, and active in the production of space. He develops a historiographic and contemporary analysis of the Atacama Large Millimeter/submillimeter Array (ALMA, Chile); the Five-hundred-meter Aperture Spherical radio Telescope (FAST, China); the Arecibo Observatory (Puerto Rico); and the MeerKAT/SKA (South Africa). These case studies are global exemplars of the different spatial transformations that occur through science. Their relationships to surrounding communities and landscapes reveal deeper constitutional processes embodied in each institutional and spatial form. This book spans the modern history of architecture and science, the studies of science, technology and society, and urban theory. It is of specific interest to architects and designers expanding their analysis of spatial production, scholars in the study of geography, landscape, science, technology, and astronomy, and people fascinated with how these radio telescopes were conceptualised, built, and operate today.
Author: Ian Ridpath
Publisher: Oxford University Press, USA
ISBN: 0199609055
Category : Reference
Languages : en
Pages : 545
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Book Description
This dictionary contains over 4,300 entries covering all aspects of astronomy from astrophysics and cosmology to galaxies and time. Major entries include Big Bang theory, relativity and variable stars. Biographical entries on eminent astronomers are also included.
Author: Malcolm Longair
Publisher: Cambridge University Press
ISBN: 1107083699
Category : Science
Languages : en
Pages : 687
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Book Description
An authoritative scientific history of a world-leading physics laboratory from its origins in the late nineteenth century to the present day.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 312
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Book Description
Author: H.E Schwarz
Publisher: Springer Science & Business Media
ISBN: 9401701253
Category : Science
Languages : en
Pages : 304
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Book Description
The effects of light pollution on flora, fauna -including humans and their widely varying night-time activities- are often subtle and need extensive field studies to be quantified in a sensible manner. Some of the highlights were: The presentation of the 1st world atlas of artificial night sky brightness (Cinzano et al.); the article by the International Darksky Association on their world-wide efforts to curb light pollution (Alvarez del Castillo et al.); the laws controlling light pollution implemented in Spain (Diaz et al.) and Chile (Sanhueza et al.), an overview of the work on radio frequency protection of sites (Cohen et al.) and the excellent introduction to the topic from the Chilean point of view (Daud). Related topics in the book are light pollution education, aircraft contrails, space advertising (with an added document provided by the relevant UN commission), and an experiment on involving the population of an entire country in measuring sky brightness, by using the internet and the media. The text is aimed at professionals from a wide range of disciplines related to lighting and its effects on the night-time environment in the broadest sense of the word. Lay persons interested in this emerging multi-disciplinary field can also find much of interest in this book.
Author: David L. Clements
Publisher: CRC Press
ISBN: 1482237288
Category : Science
Languages : en
Pages : 287
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Book Description
Uncover the Secrets of the Universe Hidden at Wavelengths beyond Our Optical Gaze William Herschel’s discovery of infrared light in 1800 led to the development of astronomy at wavelengths other than the optical. Infrared Astronomy – Seeing the Heat: from William Herschel to the Herschel Space Observatory explores the work in astronomy that relies on observations in the infrared. Author David L. Clements, a distinguished academic and science fiction writer, delves into how the universe works, from the planets in our own Solar System to the universe as a whole. The book first presents the major telescopes in the world of observational infrared astronomy, explains how infrared light is detected through various kinds of telescopes, and describes practical problems that send infrared astronomers to the tops of mountains and their telescopes into orbit and beyond. Much of the book focuses on what infrared astronomers find in their observations. You’ll discover what infrared astronomy reveals about the planets, moons, and other bodies that constitute our Solar System; star formation and stellar evolution; the processes that shape galaxies; and dark energy and dark matter. Infrared astronomy has revolutionized our understanding of the universe and has become essential in studying cosmology. Accessible to amateur astronomers, this book presents an overview of the science and technology associated with infrared astronomy. With color figures, it shows you how infrared astronomy provides insights into the workings of the universe that are unavailable at other wavelengths.
Author:
Publisher:
ISBN:
Category : Astronomical spectroscopy
Languages : en
Pages : 246
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Book Description
Author: Claus Madsen
Publisher: ESO
ISBN: 3527412034
Category : Nature
Languages : en
Pages : 564
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Book Description
Die Geschichte der Europäischen SÃ1/4dsternwarte (ESO) nimmt den Leser mit auf eine Reise von den ersten Teleskopen bis hin zu zukÃ1/4nftigen Projekten und verdeutlicht, wie der stete Fortschritt unsere Sicht auf das Universum immer wieder verändert.
