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Books > Science & Mathematics > Astronomy, space & time > Galaxies, clusters, intergalactic matter
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The Galactic and Extragalactic Background Radiation - Proceedings of the 139th Symposium of the International Astronomical Union Held in Heidelberg, F.R.G., June 12-16, 1989 (Paperback, Softcover reprint of the original 1st ed. 1990)
Loot Price: R3,105
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The Galactic and Extragalactic Background Radiation - Proceedings of the 139th Symposium of the International Astronomical Union Held in Heidelberg, F.R.G., June 12-16, 1989 (Paperback, Softcover reprint of the original 1st ed. 1990)
Series: International Astronomical Union Symposia, 139
Expected to ship within 10 - 15 working days
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The galactic and extragalactic background radiation components are
of major importance in astrophysical studies of a variety of
problems related to galactic structure, interstellar matter, the
distribution and evolution of galaxies and intergalactic matter,
and cosmology. The back ground radiation is a unique source of
information in cases where the source is of a truly diffuse nature,
as with scattering and emission by interstellar dust and gas, or
where the discrete emission sources are so faint (e. g. , very
distant galaxies) that they can be observed only by their
integrated emission. The galactic and extragalactic background must
be discussed together because they are observationally entangled
and their proper separation requires a knowledge of both
components. The above points are equally valid for the entire
electromag netic spectrum, from gamma rays to long radio waves.
Thus, the study of the galactic and extragalactic background
radiation is interdisciplinary in its character, and a multi
wavelength approach would appear to be dictated by the nature of
the topic. The proper separation of the galactic and extragalactic
background components requires a knowledge of both. In addition,
the foreground components, i. e. , zodiacal light, airglow, and
atmospheric scattered light, must be treated carefully.
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