Elativistic Effect On The Classical Doppler Shift

Relativistic Effect on the Classical Doppler Shift

The classical problem of the Doppler shift of radiation transmitted between two bodies moving relative to each other took on a new aspect with the advent of the Space Age in 1957. When measurements are made between the earth and an artificial satellite, the distance between the objects is large enough so that the finite time of propagation of a signal between the two must be taken into account. The classical equations for the Doppler effect must accordingly be modified or generalized to take into account this relativistic effect. While the concept of simultaneity in relation to measurement at a distance was not neglected in earlier papers on relativity, the recent practical importance of the problem has given rise to a number of new papers in which the theoretical and mathematical aspects of the Doppler effect are examined critically in the light of relativity theory. It is these new investigations which form the subject matter of the present bibliography. The references included were obtained from Physics Abstracts and Electrical Engineering Abstracts and the period covered was 1956 through 1963. The abstracts were taken from the abstract journals, as noted, except for that of Article 10, which was written by the compiler.

SPECIAL THEORY OF RELATIVITY

Fundamentals of Radio Astronomy

As demonstrated by five Nobel Prizes in physics, radio astronomy has contributed greatly to our understanding of the Universe. Courses covering this subject are, therefore, very important in the education of the next generation of scientists who will continue to explore the Cosmos. This textbook, the second of two volumes, presents an extensive introduction to the astrophysical processes that are studied in radio astronomy. Suitable for undergraduate courses on radio astronomy, it discusses the physical phenomena that give rise to radio emissions, presenting examples of astronomical objects, and illustrating how the relevant physical parameters of astronomical sources can be obtained from radio observations. Unlike other radio astronomy textbooks, this book provides students with an understanding of the background and the underlying principles, with derivations available for most of the equations used in the textbook. Features: Presents a clear and concise discussion of the important astronomical concepts and physical processes that give rise to both radio continuum and radio spectral line emission Discusses radio emissions from a variety of astronomical sources and shows how the observed emissions can be used to derive the physical properties of these sources Includes numerous examples using actual data from the literature