Springer Tools Of Radio Astronomy 5th

Springer Tools Of Radio Astronomy 5th

Four significant factors have led us to update this text. The first 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 availabil-
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 first remains Chap. 4, with a slightly different ti-
tle,Signal Processing and Receivers: Theory. This was expanded to include digital
processing and components including samplers and digitizers. In Chap. 5,Practi-
cal Receiver Systems. we have relegated the presentations of maser and parametric
amplifier 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 Theoryand Chap. 7,Practical Aspects
of Filled Aperture Antennas. Our goal is to have an exposition of the rather mathe-
matical theory, in Chap. 6 followed by a treatment of the practical aspects of anten-
nas. Chapter 7 in the 4th edition is now Chap. 8, titledSingle Dish Observational
Methods. Chapter 9 deals with Interferometers and Aperture Synthesis. Aperture
synthesis has become the most important imaging technique in radio astronomy;
this provides the only general method available for obtaining images of extremely
high resolution and quality, so the discussion has been extended and improved with
material pertenant to interferometers such as the Atacama Large Millimeter Array
(ALMA) and the Square Kilometer Array (SKA). Chapters 10 to 14 of this edition
have been updated to include recent observational results. Chapter 15 of the 4th edi-
tion,Molecules in Interstellar Space, has been divided into two Chapters,Overview
of Molecular Basicsand Chap. 16,Molecules in the Interstellar Medium. Chapters
15 and 16 have been updated to take new developments into account.

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