Abstract
The discovery of radio-frequency radiation from the Galactic System is due to Jansky 1. In 1931 while engaged in a study of receiver noise in the region of short wavelengths (λ = 14.6 m) he observed that part of this noise came preferentially from a certain azimuth. From the variation of this azimuth with the time of the day, and with the time of the year, he concluded that the source was related to the nuclear region of the Galactic System.
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General references
Brown, R. Hanbury and C. Hazard: A Model of the Radio-Frequency Radiation from the Galaxy. Phil. Mag. 44, 939 (1953).
Hulst, H. C. van de, C. A. Muller and J. H. Oort: The Spiral Structure of the Outer Part of the Galactic System Derived from the Hydrogen Emission at 21 cm Wave Length. Bull. Astr. Inst. Netherl. 12, 117 (1954).
Kwee, K. K., C. A. Muller and G. Westerhout: The Rotation of the Inner Parts of the Galactic System. Bull. Astr. Inst. Netherl. 12, 211 (1954).
Hulst, H. C. van de, C. A. Muller, A. Ollongren, E. Raimond, M. Schmidt and G. Westerhout: Galactic Structure Determined from 21-cm Observations. Bull. Astr. Inst. Netherl. 13, 151 (1957).
Schmidt, M.: A Model of the Distribution of Mass in the Galactic System. Bull. Astr. Inst. Netherl. 13, 15 (1956).
Oort, J. H., F. G. Kerr and G. Westerhout: The Galactic System as a Spiral Nebula. Monthly Notices Roy. Astronom. Soc. London 118, 379 (1958).
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© 1959 Springer-Verlag OHG. Berlin · Göttingen · Heidelberg
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Oort, J.H. (1959). Radio-frequency Studies of Galactic Structure. In: Flügge, S. (eds) Astrophysik IV: Sternsysteme / Astrophysics IV: Stellar Systems. Handbuch der Physik / Encyclopedia of Physics, vol 11 / 53. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-45932-0_3
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DOI: https://doi.org/10.1007/978-3-642-45932-0_3
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