Radio Telescope Reflectors

Author : Jacob W.M. Baars,Hans J Kärcher
Publisher : Springer
Page : 282 pages
File Size : 44,8 Mb
Release : 2017-11-18
Category : Science
ISBN : 9783319651484

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Radio Telescope Reflectors by Jacob W.M. Baars,Hans J Kärcher Pdf

This book demonstrates how progress in radio astronomy is intimately linked to the development of reflector antennas of increasing size and precision. The authors describe the design and construction of major radio telescopes as those in Dwingeloo, Jodrell Bank, Parkes, Effelsberg and Green Bank since 1950 up to the present as well as millimeter wavelength telescopes as the 30m MRT of IRAM in Spain, the 50m LMT in Mexico and the ALMA submillimeter instrument. The advances in methods of structural design and coping with environmental influences (wind, temperature, gravity) as well as application of new materials are explained in a non-mathematical, descriptive and graphical way along with the story of the telescopes. Emphasis is placed on the interplay between astronomical and electromagnetic requirements and structural, mechanical and control solutions. A chapter on management aspects of large telescope projects closes the book. The authors address a readership with interest in the progress of engineering solutions applied to the development of radio telescope reflectors and ground station antennas for satellite communication and space research. The book will also be of interest to historians of science and engineering with an inclination to astronomy.

Author : Jacob W. M. Baars
Publisher : Springer
Page : 0 pages
File Size : 51,5 Mb
Release : 2014-11-21
Category : Science
ISBN : 1489997083

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The Paraboloidal Reflector Antenna in Radio Astronomy and Communication by Jacob W. M. Baars Pdf

Radio astronomers have developed techniques of calibration of large reflector antennas with radio astronomical methods, but these have not been comprehensively described. This text aims to fill this gap, taking a practical approach to the characterisation of antennas. All calculations and results in the form of tables and figures have been made with Mathematica by Wolfram Research. The reader can use the procedures for the implementation of his own input data.

Author : Jacob W. M. Baars
Publisher : Springer Science & Business Media
Page : 270 pages
File Size : 53,8 Mb
Release : 2007-08-06
Category : Science
ISBN : 9780387697345

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The Paraboloidal Reflector Antenna in Radio Astronomy and Communication by Jacob W. M. Baars Pdf

Radio astronomers have developed techniques of calibration of large reflector antennas with radio astronomical methods, but these have not been comprehensively described. This text aims to fill this gap, taking a practical approach to the characterisation of antennas. All calculations and results in the form of tables and figures have been made with Mathematica by Wolfram Research. The reader can use the procedures for the implementation of his own input data.

Author : John Wilson Findlay,Sebastian von Hoerner,National Radio Astronomy Observatory (U.S.)
Publisher : Unknown
Page : 162 pages
File Size : 42,9 Mb
Release : 1972
Category : Interstellar matter
ISBN : UOM:39015072631966

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A 65-meter Telescope for Millimeter Wavelengths by John Wilson Findlay,Sebastian von Hoerner,National Radio Astronomy Observatory (U.S.) Pdf

Author : Hans U. Schürch,John M. Hedgepeth
Publisher : Unknown
Page : 68 pages
File Size : 44,8 Mb
Release : 1968
Category : Orbiting astronomical observatories
ISBN : NASA:31769000485121

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Large Low-frequency Orbiting Radio Telescope by Hans U. Schürch,John M. Hedgepeth Pdf

Author : W. N. Christiansen,J. A. Högbom
Publisher : CUP Archive
Page : 294 pages
File Size : 51,9 Mb
Release : 1987-12-17
Category : Science
ISBN : 0521347955

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Radiotelescopes by W. N. Christiansen,J. A. Högbom Pdf

Author : Greg Roza
Publisher : The Rosen Publishing Group, Inc
Page : 25 pages
File Size : 50,7 Mb
Release : 2003-12-15
Category : Juvenile Nonfiction
ISBN : 9781435873773

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The Incredible Story of Telescopes by Greg Roza Pdf

The world of optical, radio, and space telescopes will be on view for students in this fascinating story. From the first telescopes of Galileo and Newton to today’s giant twin Keck telescopes in Hawaii, readers will learn about the workings of lenses and mirrors. The book also looks at how a primary mirror is made, why the dish of a radio telescope needs to be wide, and how the Hubble Space Telescope gives astronomers sharper images than do telescopes on Earth.

Author : Jonathan M. Marr,Ronald L. Snell,Stanley E. Kurtz
Publisher : CRC Press
Page : 353 pages
File Size : 41,5 Mb
Release : 2015-11-30
Category : Science
ISBN : 9781498770194

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Fundamentals of Radio Astronomy by Jonathan M. Marr,Ronald L. Snell,Stanley E. Kurtz Pdf

As evidenced by five Nobel Prizes in physics, radio astronomy in its 80-year history has contributed greatly to our understanding of the universe. Yet for too long, there has been no suitable textbook on radio astronomy for undergraduate students.Fundamentals of Radio Astronomy: Observational Methods is the first undergraduate-level textbook exclus

Author : Bernard F. Burke,Francis Graham-Smith
Publisher : Cambridge University Press
Page : 402 pages
File Size : 55,5 Mb
Release : 2002-04-04
Category : Science
ISBN : 0521005175

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An Introduction to Radio Astronomy by Bernard F. Burke,Francis Graham-Smith Pdf

Radio astronomy uses unique observational techniques and offers the only way to investigate many phenomena in the Universe. This book, by two founders of the field, presents both a clear introduction to radio telescopes and techniques, and a broad overview of the radio universe. The material in this new edition has been expanded and updated, reflecting the developments in the field over the last decade. New material reflects the increasing use of aperture synthesis and Very Long Baseline Interferometry, and the further exploitation of molecular spectral lines. A new chapter is devoted to the fundamentals of radiation and propagation theory. The second half of the book constitutes a review of radio observations of our Milky Way galaxy. Wide-ranging and clearly written, this book provides a thorough and up-to-date introduction to the subject for graduate students, and an invaluable overview for researchers turning to radio astronomy for the first time.

Author : Karl F. Warnick,Rob Maaskant,Marianna V. Ivashina,David B. Davidson,Brian D. Jeffs
Publisher : Cambridge University Press
Page : 471 pages
File Size : 50,5 Mb
Release : 2018-07-26
Category : Mathematics
ISBN : 9781108423922

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Phased Arrays for Radio Astronomy, Remote Sensing, and Satellite Communications by Karl F. Warnick,Rob Maaskant,Marianna V. Ivashina,David B. Davidson,Brian D. Jeffs Pdf

Discover a modern approach to the analysis, modeling and design of high sensitivity phased arrays. Network theory, numerical methods and computational electromagnetic simulation techniques are uniquely combined to enable full system analysis and design optimization. Beamforming and array signal processing theory are integrated into the treatment from the start. Digital signal processing methods such as polyphase filtering and RFI mitigation are described, along with technologies for real-time hardware implementation. Key concepts from interferometric imaging used in radio telescopes are also considered. A basic development of theory and modeling techniques is accompanied by problem sets that guide readers in developing modeling codes that retain the simplicity of the classical array factor method while incorporating mutual coupling effects and interactions between elements. Combining current research trends with pedagogical material suitable for a first-year graduate course, this is an invaluable resource for students, teachers, researchers, and practicing RF/microwave and antenna design engineers.

Author : James J. Condon,Scott M. Ransom
Publisher : Princeton University Press
Page : 376 pages
File Size : 47,9 Mb
Release : 2016-04-05
Category : Science
ISBN : 9780691137797

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Essential Radio Astronomy by James J. Condon,Scott M. Ransom Pdf

The ideal text for a one-semester course in radio astronomy Essential Radio Astronomy is the only textbook on the subject specifically designed for a one-semester introductory course for advanced undergraduates or graduate students in astronomy and astrophysics. It starts from first principles in order to fill gaps in students' backgrounds, make teaching easier for professors who are not expert radio astronomers, and provide a useful reference to the essential equations used by practitioners. This unique textbook reflects the fact that students of multiwavelength astronomy typically can afford to spend only one semester studying the observational techniques particular to each wavelength band. Essential Radio Astronomy presents only the most crucial concepts—succinctly and accessibly. It covers the general principles behind radio telescopes, receivers, and digital backends without getting bogged down in engineering details. Emphasizing the physical processes in radio sources, the book's approach is shaped by the view that radio astrophysics owes more to thermodynamics than electromagnetism. Proven in the classroom and generously illustrated throughout, Essential Radio Astronomy is an invaluable resource for students and researchers alike. The only textbook specifically designed for a one-semester course in radio astronomy Starts from first principles Makes teaching easier for astronomy professors who are not expert radio astronomers Emphasizes the physical processes in radio sources Covers the principles behind radio telescopes and receivers Provides the essential equations and fundamental constants used by practitioners Supplementary website includes lecture notes, problem sets, exams, and links to interactive demonstrations An online illustration package is available to professors

Author : Thomas Wilson,Kristen Rohlfs,Susanne Huettemeister
Publisher : Springer Science & Business Media
Page : 520 pages
File Size : 46,7 Mb
Release : 2008-12-19
Category : Science
ISBN : 9783540851219

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Tools of Radio Astronomy by Thomas Wilson,Kristen Rohlfs,Susanne Huettemeister Pdf

Four signi?cant factors have led us to update this text. The ?rst is the breathtaking progress in technology, especially in receiver and digital techniques. The second is the advance of radio astronomy to shorter wavelengths, and the increased availab- ity of astronomical satellites. The third is a need to reorganize some of the chapters in order to separate the basic theory, that seldom changes, from practical aspects that change often. Finally, it is our desire to enhance the text by including problem sets for each chapter. In view of this ambitious plan, we have expanded the number of authors. In the reorganization of this edition, we have divided Chap. 4 of the 4th edition into two Chaps. 4 and 5. The ?rst remains Chap. 4, with a slightly different - tle, Signal Processing and Receivers: Theory. This was expanded to include digital processing and components including samplers and digitizers. In Chap. 5, Prac- cal Receiver Systems. we have relegated the presentations of maser and parametric ampli?er front ends, which are no longer commonly used as microwave receivers in radio astronomy, to a short section on “historical developments” and We have retained and improved the presentations of current state-of-the-art devices, cooled transistor and superconducting front ends. We have also included descriptions of local oscillators and phase lock loops. Chapters 5 and 6 in the 4th edition has now become Chap. 6, Fundamentals of Antenna Theory and Chap.

Author : Yeap, Kim Ho,Hirasawa, Kazuhiro
Publisher : IGI Global
Page : 324 pages
File Size : 55,9 Mb
Release : 2020-02-07
Category : Science
ISBN : 9781799823834

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Analyzing the Physics of Radio Telescopes and Radio Astronomy by Yeap, Kim Ho,Hirasawa, Kazuhiro Pdf

In the field of astrophysics, modern developments of practice are emerging in order to further understand the spectral information derived from cosmic sources. Radio telescopes are a current mode of practice used to observe these occurrences. Despite the various accommodations that this technology offers, physicists around the globe need a better understanding of the underlying physics and operational components of radio telescopes as well as an explanation of the cosmic objects that are being detected. Analyzing the Physics of Radio Telescopes and Radio Astronomy is an essential reference source that discusses the principles of the astronomical instruments involved in the construction of radio telescopes and the analysis of cosmic sources and celestial objects detected by this machinery. Featuring research on topics such as electromagnetic theory, antenna design, and geometrical optics, this book is ideally designed for astrophysicists, engineers, researchers, astronomers, students, and educators seeking coverage on the operational methods of radio telescopes and understanding the physical processes of radio astronomy.

Author : W. T. Sullivan
Publisher : Cambridge University Press
Page : 436 pages
File Size : 40,8 Mb
Release : 2004
Category : Science
ISBN : 0521616026

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The Early Years of Radio Astronomy by W. T. Sullivan Pdf

Recollection by pioneers in radio astronomy, to mark the fiftieth anniversary of extraterrestrial radio emission in 1933.

Author : Peter L. Manly
Publisher : Cambridge University Press
Page : 248 pages
File Size : 46,9 Mb
Release : 1995-04-27
Category : Nature
ISBN : 052148393X

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Unusual Telescopes by Peter L. Manly Pdf

Peter Manly surveys more than 150 unusual telescopes designed by amateur and professional astronomers to suit some special need.