Essential Radio Astronomy

Essential Radio Astronomy

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.

Author: James J. Condon

Publisher: Princeton University Press

ISBN: 9780691137797

Category: Science

Page: 376

View: 722

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
Categories: Science

Analyzing the Physics of Radio Telescopes and Radio Astronomy

Analyzing the Physics of Radio Telescopes and Radio Astronomy

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 ...

Author: Yeap, Kim Ho

Publisher: IGI Global

ISBN: 9781799823834

Category: Science

Page: 324

View: 168

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.
Categories: Science

Radio Astronomy

Radio Astronomy

[21] Condon, J. J. and Ransom, S. M. 2010. Essential Radio Astronomy. National
Radio Astronomy Observatory (online course). Available at http://www.cv.nrao.
edu/course/astr534/ERA.shtml [22] Conway, J. E., Cornwelln, T. J., and Wilkinson
, ...

Author: Shubhendu Joardar

Publisher: Stylus Publishing, LLC

ISBN: 9781937585624

Category: Technology & Engineering

Page: 500

View: 513

Designed for a course in radio astronomy or for use as a reference for practicing engineers and astronomers, this book provides a comprehensive overview of the topic. Application boxes in each chapter cover topics like LOFAR, DSN, and VLBI. The book begins with the history of radio astronomy, then explains the fundamentals, polarization, designing radio telescopes, understanding radio arrays, interferometers, receiving systems, mapping techniques, image processing and propagation effects in relation to radio astronomy. A special chapter in the end presents the GMRT radio array as an example of the explained techniques. Features: •Includes context-connection boxes, including NASA’s Deep Space Network (DSN) the South Pole Telescope (SPT), the Low-Frequency Array (LOFAR), Space Very Long Baseline Interferometry (VLBI), pulsar dispersion and distance, and plane waves in conducting and dielectric media •Contains several appendices including radiation potential formalism, the physics of radio spectral lines, and a table of world radio observatories •View the comprehensive companion disc with hundreds of color images and figures from the text
Categories: Technology & Engineering

Tools of Radio Astronomy

Tools of Radio Astronomy

Some of these problems have been formulated to provide an extension to the material presented in "Tools of Radio Astronomy". This book contains graduate-level problems with carefully presented solutions and covers topics in radio astronomy.

Author: Thomas Wilson

Publisher: Springer Science & Business Media

ISBN: 3540668020

Category: Science

Page: 162

View: 559

Covering topics of radio astronomy, this book contains graduate-level problems with carefully presented solutions. The problems are arranged following the content of the book "Tools of Radio Astronomy" by Rohlfs and Wilson (also available in this series) on a chapter-by-chapter basis. Some of these problems have been formulated to provide an extension to the material presented in "Tools of Radio Astronomy".
Categories: Science

Tools of Radio Astronomy

Tools of Radio Astronomy

We begin with a history of the field of molecular line astronomy starting from the
simpler situations typical of the ISM, including ... Molecular line studies are
essential to understanding how stars such as our sun and our solar system
formed.

Author: T. L. Wilson

Publisher: Springer Science & Business Media

ISBN: 9783540851226

Category: Science

Page: 518

View: 403

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.
Categories: Science

Tools of Radio Astronomy

Tools of Radio Astronomy

Often the Planck temperature scale is used in radio studies of the planets. The
2.73K ... An Introduction to Radio Astronomy 3rd edition(Cambridge University
Press, Cambridge) Condon, J., Ransom, S. (2007): Essential Radio Astronomy ...

Author: Thomas L. Wilson

Publisher: Springer Science & Business Media

ISBN: 9783642399503

Category: Science

Page: 609

View: 860

This 6th edition of “Tools of Radio Astronomy”, the most used introductory text in radio astronomy, has been revised to reflect the current state of this important branch of astronomy. This includes the use of satellites, low radio frequencies, the millimeter/sub-mm universe, the Cosmic Microwave Background and the increased importance of mm/sub-mm dust emission. Several derivations and presentations of technical aspects of radio astronomy and receivers, such as receiver noise, the Hertz dipole and beam forming have been updated, expanded, re-worked or complemented by alternative derivations. These reflect advances in technology. The wider bandwidths of the Jansky-VLA and long wave arrays such as LOFAR and mm/sub-mm arrays such as ALMA required an expansion of the discussion of interferometers and aperture synthesis. Developments in data reduction algorithms have been included. As a result of the large amount of data collected in the past 20 years, the discussion of solar system radio astronomy, dust emission, and radio supernovae has been revisited. The chapters on spectral line emission have been updated to cover measurements of the neutral hydrogen radiation from the early universe as well as measurements with new facilities. Similarly the discussion of molecules in interstellar space has been expanded to include the molecular and dust emission from protostars and very cold regions. Several worked examples have been added in the areas of fundamental physics, such as pulsars. Both students and practicing astronomers will appreciate this new up-to-date edition of Tools of Radio Astronomy.
Categories: Science

Radio Frequency Control in Space Telecommunications

Radio Frequency Control in Space Telecommunications

Further , the development of radio astronomy has already led to major technical
advances , particularly in receiver and antenna design techniques , and led to
improved knowledge of fundamental radio noise limitations of great importance
to ...

Author: Library of Congress. Legislative Reference Service

Publisher:

ISBN: UOM:39015014334695

Category: Radio frequency allocation

Page: 235

View: 144

Categories: Radio frequency allocation

Planning Document for the Establishment and Operation of a Radio Astronomy Observatory

Planning Document for the Establishment and Operation of a Radio Astronomy Observatory

A . Specific Objectives . A Radio Astronomy Observatory would accomplish many
important functions : 1 . It would make available , to scientists throughout the
United States , the large , powerful research equipment that is necessary to
advance ...

Author: Associated Universities, Inc

Publisher:

ISBN: STANFORD:36105040896156

Category: Astronomical observatories

Page: 62

View: 864

Categories: Astronomical observatories

Assembl e Pl ni re

Assembl  e Pl  ni  re

SECTION 2G : RADIOASTRONOMY AND RADAR ASTRONOMY
RECOMMENDATION 314-7 * PROTECTION FOR ... and to improved knowledge
of fundamental radio - noise limitations of great importance to
radiocommunication , and ...

Author: International Radio Consultative Committee

Publisher:

ISBN: UCBK:C049368330

Category: Radio

Page:

View: 299

Categories: Radio

Recommendations and Reports of the CCIR 1978

Recommendations and Reports of the CCIR  1978

1 Because of the nature of the phenomena observed in radioastronomy , only
under special conditions will it be feasible to ... and to improved knowledge of
fundamental radio - noise limitations of great importance to radiocommunication ,
and ...

Author: International Radio Consultative Committee

Publisher:

ISBN: STANFORD:36105000779483

Category: Radio

Page:

View: 491

Categories: Radio

Radio Astronomy

Radio Astronomy

CHAPTER 4 RADIO METHODS OF INVESTIGATION In the last three chapters we
have discussed some fundamental ... In this chapter we shall consider some
essential features of the radio techniques which are used in radio astronomy .

Author: Bernard Lovell

Publisher:

ISBN: UCAL:B4520825

Category: Radio astronomy

Page: 238

View: 287

Categories: Radio astronomy

Information Bulletin

Information Bulletin

Protection of Frequencies used for Radioastronomical Measurements ( C . C . I .
R . Recommendation 314 ( 1963 ) ... interference on certain frequencies is
essential to the advance of radioastronomy and the associated measurements ; c
) that ...

Author: International Astronomical Union

Publisher:

ISBN: UOM:39015027467250

Category: Astronomy

Page:

View: 223

Categories: Astronomy

Solar Radio Astronomy

Solar Radio Astronomy

Techniques of Solar Radio Observations In order to have a proper understanding
of the observed properties of various sources of radio emission , a knowledge of
the different techniques used in solar radio astronomy is essential .

Author: Mukul Ranjan Kundu

Publisher:

ISBN: UCAL:B4264145

Category: Radio astronomy

Page: 660

View: 452

Categories: Radio astronomy

Sources and Scintillations

Sources and Scintillations

The topics covered in this book include: theory of scattering and scintillation, distribution of scattering material, intra-day variability, pulsars and their magnetospheric structure, polarization of AGN, interplanetary scintillation, and ...

Author: Peng Bo

Publisher: Springer Science & Business Media

ISBN: 1402000480

Category: Nature

Page: 265

View: 973

The topics covered in this book include: theory of scattering and scintillation, distribution of scattering material, intra-day variability, pulsars and their magnetospheric structure, polarization of AGN, interplanetary scintillation, and future highly-sensitive radio telescopes. The introductory papers emphasize the essential properties of diffractive and refractive scattering, how they differ in temporal and frequency structure, and what they reveal about irregularities in the ISM. Pulsars can be examined in a number of different ways as a function of frequency: time variability (both short and long term), DM changes, pulse broadening, angular extent, and Faraday rotation. Intra-day variable sources (IDVs) are another major topic of the book. Although many variable sources clearly exhibit intrinsic changes, IDVs are generally believed to result from scintillation effects. They require source sizes on the ten micro-arcsec scale, the most extreme cases having profound implications for source lifetimes and emission mechanisms.
Categories: Nature

Tools of Radio Astronomy

Tools of Radio Astronomy

designed spectrometer backends are essential for an effective operation of a
radiotelescope if radio spectroscopy is intended . If a resolution of Af is to be
achieved for the spectrometer , all those parts of the system that enter critically
into the ...

Author: Kristen Rohlfs

Publisher:

ISBN: STANFORD:36105030435601

Category: Radio astronomy

Page: 319

View: 154

Categories: Radio astronomy

Radio Astronomy

Radio Astronomy

14 — A simplified block diagram illustrating the essential functional elements of
the system . Recorder is necessarily small because of the large path differences
for radiation incident on different parts of the arrays , particularly at large zenith ...

Author: Institute of Radio Engineers

Publisher:

ISBN: UOM:39015017169247

Category: Radio astronomy

Page: 373

View: 408

Categories: Radio astronomy

Radio Astronomy

Radio Astronomy

Radio photons are of much lower energy than optical photons and hence are
emitted in larger numbers for the same energy radiated . Accordingly , radio
astronomy has a fundamental advantage over optical astronomy , or any other
photon ...

Author: John D. Kraus

Publisher: McGraw-Hill Companies

ISBN: UOM:39015001318818

Category: Radio astronomy

Page: 481

View: 113

Categories: Radio astronomy

The Evolution of Radio Astronomy

The Evolution of Radio Astronomy

The necessary practical aspects of radio equipment can in fact be acquired
through a comparatively short course of training . As radio astronomy has
progressed , the physical aspects of problems encountered have asserted a
more dominant ...

Author: J. S. Hey

Publisher: Science History Publications/USA

ISBN: UOM:39015017169197

Category: Radio astronomy

Page: 214

View: 705

Categories: Radio astronomy

Radio Astronomy

Radio Astronomy

A basic measuring equipment In describing equipment for observing solar and
cosmic radio waves it will be necessary first to outline a complete equipment in
order to indicate the essential component parts . Aerial and feeder Output meter ...

Author:

Publisher:

ISBN: UCAL:B4980058

Category: Radio astronomy

Page: 409

View: 192

Categories: Radio astronomy