High Sensitivity Radio Astronomy

Author : N. Jackson,R. J. Davis
Publisher : Cambridge University Press
Page : 332 pages
File Size : 54,9 Mb
Release : 1997-01-28
Category : Science
ISBN : 0521573505

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High-Sensitivity Radio Astronomy by N. Jackson,R. J. Davis Pdf

Enhanced sensitivity radio telescopes are producing dramatic results. An international conference was held in Jodrell Bank to take stock of these advances. This timely volume presents the review articles presented by a host of world experts who gathered at this meeting. We are shown how high sensitivity is advancing our understanding in radio spectral line analysis, radio continuum observations of galaxies, cosmology, pulsars, and radio emission from stars; what new and enhanced instruments are now available and those planned for the future. This volume provides graduate students and researchers with an up-to-date and wide-ranging review of the new and future research possible with high-sensitivity radio telescopes.

Author : James J. Condon,Scott M. Ransom
Publisher : Princeton University Press
Page : 376 pages
File Size : 47,7 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 : Jonathan M. Marr,Ronald L. Snell,Stanley E. Kurtz
Publisher : CRC Press
Page : 353 pages
File Size : 52,8 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 : Dmitriĭ Vladimirovich Skobelʹt︠s︡yn
Publisher : Springer
Page : 204 pages
File Size : 53,7 Mb
Release : 1971
Category : Nature
ISBN : UOM:39015017169338

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Radio Astronomy by Dmitriĭ Vladimirovich Skobelʹt︠s︡yn Pdf

In this volume are collected scientific research reports written in recent years at the Radio-Astronomy Laboratory in the field of radio-astronomical apparatus and methods of ob servation. Modern radiometers of high sensitivity, using masers and parametric amplifiers, have been installed at the R T-22 radio telescope of the Laboratory's Radio-Astronomy station. Some of the papers are devoted to a description of these original radiometers and to their operating conditions. Considerable space is given to a description of the meter-wave equipment and to the ad justment of the DKR-1000 diapason cruciform radio telescope. Two papers describe radio in terferometers with radio relaying. This method of increasing the resolving power is extreme ly effective and it is expected that it will be further developed under laboratory conditions, primarily in the meter wave range. Problems of radio-telescope design occupy an important place in contemporary radio astronomy and radio engineering. Three articles are devoted to this important line of work. In 1966, an experiment was carried out at the Radio-Astronomy Laboratory on the inves tigation of the solar wind by a radio-astronomical method. The experiment gave substantially new data concerning the nonuniformity of the plasma around the sun; the experimental part of the work carried out is described in the collection.

Author : United States. National Radio Astronomy Observatory, Green Bank, West Virginia
Publisher : Unknown
Page : 366 pages
File Size : 48,9 Mb
Release : 1967
Category : Radio astronomy
ISBN : UCSC:32106005816068

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A Proposal for a Very Large Array Radio Telescope by United States. National Radio Astronomy Observatory, Green Bank, West Virginia Pdf

Author : Karl F. Warnick,Rob Maaskant,Marianna V. Ivashina,David B. Davidson,Brian D. Jeffs
Publisher : Cambridge University Press
Page : 471 pages
File Size : 40,9 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 : National Research Council,Division on Engineering and Physical Sciences,Board on Physics and Astronomy,Committee on Radio Frequencies,Committee on Scientific Use of the Radio Spectrum
Publisher : National Academies Press
Page : 249 pages
File Size : 47,6 Mb
Release : 2010-02-25
Category : Computers
ISBN : 9780309151542

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Spectrum Management for Science in the 21st Century by National Research Council,Division on Engineering and Physical Sciences,Board on Physics and Astronomy,Committee on Radio Frequencies,Committee on Scientific Use of the Radio Spectrum Pdf

Radio observations of the cosmos are gathered by geoscientists using complex earth-orbiting satellites and ground-based equipment, and by radio astronomers using large ground-based radio telescopes. Signals from natural radio emissions are extremely weak, and the equipment used to measure them is becoming ever-more sophisticated and sensitive. The radio spectrum is also being used by radiating, or "active," services, ranging from aircraft radars to rapidly expanding consumer services such as cellular telephones and wireless internet. These valuable active services transmit radio waves and thereby potentially interfere with the receive-only, or "passive," scientific services. Transmitters for the active services create an artificial "electronic fog" which can cause confusion, and, in severe cases, totally blinds the passive receivers. Both the active and the passive services are increasing their use of the spectrum, and so the potential for interference, already strong, is also increasing. This book addresses the tension between the active services' demand for greater spectrum use and the passive users' need for quiet spectrum. The included recommendations provide a pathway for putting in place the regulatory mechanisms and associated supporting research activities necessary to meet the demands of both users.

Author : National Radio Astronomy Observatory (U.S.)
Publisher : Unknown
Page : 568 pages
File Size : 54,5 Mb
Release : 1977
Category : Astronomy
ISBN : OSU:32435023323876

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Reprints - National Radio Astronomy Observatory, Green Bank, W. Va by National Radio Astronomy Observatory (U.S.) Pdf

Author : International Telecommunication Union
Publisher : United Nations
Page : 160 pages
File Size : 43,9 Mb
Release : 2017-07-11
Category : Technology & Engineering
ISBN : 9789261188016

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Handbook on Radio Astronomy 2013 by International Telecommunication Union Pdf

The Handbook on Radio Astronomy has been developed by experts of Working Party 7D of ITU-R Study Group 7 (Science Services) that is responsible for radio astronomy. This Handbook is not intended as a source book on radio astronomy, but rather deals with such aspects of radio astronomy that are relevant to frequency coordination as the management of radio spectrum usage in order to minimize interference between radio communication services.

Author : F.J. Kerr,S.C. Simonson III
Publisher : Springer Science & Business Media
Page : 678 pages
File Size : 44,8 Mb
Release : 1974-12-31
Category : Science
ISBN : 9027705011

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Galactic Radio Astronomy by F.J. Kerr,S.C. Simonson III Pdf

'Galactic Radio Astronomy' was chosen as the subject of this Symposium, which was held in conjunction with the IAU General Assembly that took place in Sydney in August 1973, largely because it is a very suitable Southern Hemisphere topic. This results in part from the advantages of a southern location in studying the Galaxy and in part from the long association of Australia with radio astronomy. Following the General Assembly, the Symposium was held at the Surf air Inter national Hotel in Maroochydore, Queensland, from 3 to 7 September, 1973. The conference participants were effectively isolated from the rest of the world during the Symposium, and the excellent spring weather and geographical situation led to the development of an unusually good rapport. The Symposium was sponsored by Commissions 40, 33, and 34. The Organizing Committee was composed of A. H. Barrett (chairman), J. E. Baldwin, D. S. Heeschen, F. J. Kerr, J. Lequeux, S. W. McCuskey, P. G. Mezger, B. Y. Mills, Yu. N. Parijskij, B. J. Robinson, H. van der Laan, and H. F. Weaver. The Local Committee, consisting ofB. J. Robinson, N. G. Seddon, and P. J. Kelly, looked after the arrangements in very fine style. The Symposium was supported financially by the IAU, the Australian Academy o~ Science, the CSIRO Division of Radiophysics, Union Carbide Australia Limited, and the Science Foundation for Physics within the University of Sydney.

Author : Richard Strom,Peng Bo,Mark Walker,Nan Rendong
Publisher : Springer Science & Business Media
Page : 265 pages
File Size : 40,6 Mb
Release : 2011-06-27
Category : Science
ISBN : 9789401010016

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Sources and Scintillations by Richard Strom,Peng Bo,Mark Walker,Nan Rendong Pdf

The genesis of IAU Colloquium 182, 'Sources and scintillations: refraction and scattering in radio astronomy,' can be traced to the desire, on the one hand, of Beijing Astronomical Observatory radio astronomers to organize a conference which would highlight the need for high sensitivity - as a way ofpromoting their own project to build the world's largest telescope (FAST) - and to a suggestion from Ron Ekers on the other. During a discussion with the two SOC co-chairs (as they then were not) in January 1999 in Epping, Ron noted the success ofa meeting on 'radio seeing' in Beijing in 1989, and wondered whether the time might not be ripe to organize another conference devoted to radio propagation. This set the ball rolling, and with enthusiastic input from SOC members, a successful application was made to the IAU. Later, the URSI also agreed to co-sponsor the meeting. From April 17-21, 2000, over 80 astronomers from a dozen countries met in Guiyang, China, to discuss the latestexciting results and theoretical ideas on radio propagation through interstellar, intergalactic and interplanetary space. These pro ceedings include almost all (95%) ofthe oral presentations given at the conference. In addition to the 52 talks presented during 5 days of the Colloquium, Ron Ekers gave a fine summary at the end to tie things up. There were also poster sessions where some twenty papers were displayed. Besides the scientific sessions, the LOC had organized a program for spouses and otheraccompanying persons.

Author : George Warner Swenson
Publisher : Unknown
Page : 78 pages
File Size : 41,6 Mb
Release : 1980
Category : Technology & Engineering
ISBN : UCAL:B4346310

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An Amateur Radio Telescope by George Warner Swenson Pdf

Author : S. Joardar,A. B. Bhattacharya,R. Bhattacharya
Publisher : Jones & Bartlett Learning
Page : 390 pages
File Size : 42,5 Mb
Release : 2008-04-15
Category : Science
ISBN : 0763777862

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Astronomy and Astrophysics by S. Joardar,A. B. Bhattacharya,R. Bhattacharya Pdf

This book is designed for upper division courses in astronomy and as a reference for science professionals. The subject areas of astronomy and astrophysics have grown tremendously during the last few decades. New developments in radio astronomy and recent data retrieved from NASAs Hubble Space Telescope have resulted in many discoveries and created new interest in the study of the universe. Using four-color throughout, Astronomy & Astrophysics describes the different techniques and instruments employed in the study of the universe and the results obtained with discussion on both theory and observation. The book covers topics such as, minor planets, radio astronomy, astronomical telescopes, measurement of solar brightness distribution, black holes, and the Einstein effect. A CD-ROM with color figures and simulations accompanies the book.

Author : Bernard F. Burke,Francis Graham-Smith
Publisher : Cambridge University Press
Page : 402 pages
File Size : 44,6 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 : Johannes Andersen
Publisher : Springer Science & Business Media
Page : 612 pages
File Size : 40,9 Mb
Release : 1999-01-31
Category : Science
ISBN : 0792355563

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Highlights of Astronomy, Volume 11B by Johannes Andersen Pdf

Since 1967, the main scientific events of the General Assemblies of the International Astronomical Union have been published in the separate series, Highlights of Astronomy. The present Volume 11 presents the major scientific presentations made at the XXIIIrd General Assembly, August 18-30, 1997, in Kyoto, Japan. The two volumes (11A+B) contain the texts of the three Invited Discourses as well as the proceedings or extended summaries of the 21 Joint Discussions and two Special Sessions held during the General Assembly.