Very Long Baseline Interferometer
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Very Long Baseline Interferometry
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Author : Marcello Felli
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Very Long Baseline Interferometry written by Marcello Felli 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.
The quest for high resolution has preoccupied radio astronomers ever since radio waves were first detected from space fifty years ago. This venture was par ticularly stimulated by the discovery of quasars, and led to the development of interferometer techniques using baselines of transglobal dimensions. These meth ods have become known as Very Long Baseline Interferometry (VLBI). Arrays of radio telescopes situated all over the Earth (or even in space) are regularly used for researches in radio astronomy, reaching resolutions as small as a fraction of a milli arcsecond. The technique also allows the measurement of the positions of the radio telescopes to a few millimeters and so VLBI has become a major tool in geodesy and the study of the rotation of the Earth. VLBI has now passed the pioneer stage and is becoming a standard facility available to astronomers and geodesists, requiring the coordination of the operations of indpendently owned radio telescopes around the world. In Europe observatories from England, Federal Republic of Germany, France, Italy, Poland, Sweden and The Netherlands are coordinated in their VLBI activity by the European VLBI Network Consortium (EVN). The Programme Committee of the EVN allocates time to scientific projects on a routine basis three times a year. The Unites States has a similar arrangement of a network of independent radio observatories, and joint experiments using 'Global Network' are often made.
Very Long Baseline Interferometer
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Author : Fujinobu Takahashi
language : en
Publisher: IOS Press
Release Date : 2000
Very Long Baseline Interferometer written by Fujinobu Takahashi and has been published by IOS Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Technology & Engineering categories.
VLBI is an acronym for Very Long Baseline Inferometry, and can be roughly divided into two areas of application. The first area is in geodesy, which is covered in considerable detail in this book. The second area is in astrometry, or radio astronomy, which is only briefly treated in the book.
Open Skies
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Author : Kenneth I. Kellermann
language : en
Publisher: Springer Nature
Release Date : 2020-06-29
Open Skies written by Kenneth I. Kellermann and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-06-29 with Science categories.
This open access book on the history of the National Radio Astronomy Observatory covers the scientific discoveries and technical innovations of late 20th century radio astronomy with particular attention to the people and institutions involved. The authors have made extensive use of the NRAO Archives, which contain an unparalleled collection of documents pertaining to the history of radio astronomy, including the institutional records of NRAO as well as the personal papers of many of the pioneers of U.S. radio astronomy. Technical details and extensive citations to original sources are given in notes for the more technical readers, but are not required for an understanding of the body of the book. This book is intended for an audience ranging from interested lay readers to professional researchers studying the scientific, technical, political, and cultural development of a new science, and how it changed the course of 20th century astronomy. With a Foreword by Ron Ekers.
Explanatory Supplement To The Astronomical Almanac
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Author : United States Naval Observatory. Nautical Almanac Office
language : en
Publisher: University Science Books
Release Date : 1992
Explanatory Supplement To The Astronomical Almanac written by United States Naval Observatory. Nautical Almanac Office and has been published by University Science Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Science categories.
This well-schooled text provides a detailed description of how to perform practical astronomy or spherical astronomy. It is an authoritative source on astronomical phenomena and calendars.
Interferometry And Synthesis In Radio Astronomy
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Author : A. Richard Thompson
language : en
Publisher: John Wiley & Sons
Release Date : 2008-11-20
Interferometry And Synthesis In Radio Astronomy written by A. Richard Thompson 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 2008-11-20 with Science categories.
Comprehensive, authoritative coverage of interferometric techniques for radio astronomy In this Second Edition of Interferometry and Synthesis in Radio Astronomy, three leading figures in the development of large imaging arrays, including very-long-baseline interferometry (VLBI), describe and explain the technology that provides images of the universe with an angular resolution as fine as 1/20,000 of an arcsecond. This comprehensive volume begins with a historical review followed by detailed coverage of the theory of interferometry and synthesis imaging, analysis of interferometer response, geometrical relationships, polarimetry, antennas, and arrays. Discussion of the receiving system continues with analysis of the response to signals and noise, analog design requirements, and digital signal processing. The authors detail special requirements of VLBI including atomic frequency standards, broadband recording systems, and antennas in orbit. Further major topics include: * Calibration of data and synthesis of images * Image enhancement using nonlinear algorithms * Techniques for astrometry and geodesy * Propagation in the neutral atmosphere and ionized media * Radio interference * Related techniques: intensity interferometry, moon occultations, antenna holography, and optical interferometry Interferometry and Synthesis in Radio Astronomy, Second Edition is comprehensive in that it provides an excellent overview of most radio astronomical instrumentation and techniques.
Very Long Baseline Interferometry And The Vlba
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Author : J. Anton Zensus
language : en
Publisher:
Release Date : 1995
Very Long Baseline Interferometry And The Vlba written by J. Anton Zensus and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Nature categories.
Synthesis Imaging In Radio Astronomy
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Author : Richard A. Perley
language : en
Publisher:
Release Date : 1989
Synthesis Imaging In Radio Astronomy written by Richard A. Perley and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Nature categories.
High Frequency Very Long Baseline Interferometry Obeservations Of Active Galactic Nuclei
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Author : Geoffrey Copeland Bower
language : en
Publisher:
Release Date : 1997
High Frequency Very Long Baseline Interferometry Obeservations Of Active Galactic Nuclei written by Geoffrey Copeland Bower and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.
An Intercontinental Very Long Baseline Array
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Author :
language : en
Publisher:
Release Date : 1977
An Intercontinental Very Long Baseline Array written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Interferometers categories.
Very Long Baseline Radio Interferometry Using A Geostationary Satellite
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Author :
language : en
Publisher:
Release Date : 1978
Very Long Baseline Radio Interferometry Using A Geostationary Satellite written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Base measuring categories.