Abstract
In the early days of radio astronomy the receiver sensitivities restricted measurements to the few hundred megahertz range. At such relatively low frequencies the resolving power of the available radio telescopes was low. Initially only very few of the discrete sources could be identified with objects known from the optical region of the spectrum. Further investigations showed an increase in the number of sources with decreasing source flux density and gave the distribution of sources in the sky. It was then concluded that there are two different families of sources: galactic sources, concentrated towards the galactic plane and extragalactic sources distributed more or less uniformly in space. The unresolved, spatially continuous radiation belongs to the galactic component. In addition, there is the 2.7K thermal background radiation which is cosmological in origin.
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References
a) General
Bekefi, G. (1966): Radiation Processes in Plasmas (Wiley, New York)
Ginzburg, V. L., Syrovatskii, S. I. (1965): Ann. Rev. Aston. Astrophys.3, 297
Ginzburg, V. L., Syrovatskii, S. I. (1969): Ann. Rev. Astron. Astrophys.7, 375
Ginzburg, V. L. (1979): Theoretical Physics and Astrophysics (Pergamon Press, Oxford)
Green, R.M. (1985): Spherical Astronomy (Cambridge University Press, Cambridge) Chaps. 15 and 16
Jackson, J.D. (1975): Classical Electrodynamics, 2nd ed. (Wiley, New York)
Krügel, E., (2002): The Physics of Interstellar Dust (Inst. of Physics Press: Bristol UK)
Landau, L.D., Lifschitz, E.M. (1967): Lehrbuch der Theoretischen Physik, Vol.2 (Akademie, Berlin)
Lang, K. (1974): Astrophysical Formulae (Springer, New York, Heidelberg, Berlin) Chap. I
Longair, M.S. (1981): High Energy Astrophysics (Cambridge University Press, Cambridge) Chap. 3, 18
Pacholczyk, A.G. (1970): Radio Astrophysics (Freeman, San Francisco, CA)
Pacholczyk, A.G. (1977): Radio Galaxies (Pergamon, Oxford)
Panofsky, W.K., Phillips, M. (1962): Classical Electricity and Magnetism (Addison-Wesley, Reading, MA)
Rybicki, G.B., Lightman, A.P. (1979): Radiative Processes in Astrophysics (Wiley, New York)
Tucker, W.H. (1975): Radiation Processes in Astrophysics (MIT, Cambridge, MA)
Unsöld, A. (1955): Physik der Sternatmosphären, 2nd ed. (Springer, Berlin, Heidelberg)
b) Special
Alfvén, H., Herlofson, N. (1950): Phys. Rev.78, 616 (Letter)
Altenhoff, W.J. et al. (1960): Veröff. Sternwarte Bonnv, Nr. 59
Bennett, A.S. (1962): Mem. Roy. Astron. Soc.68, 163
Chrysostomou, A., Aitken, D.K., Jenness, T., Davis, C.J., Hough, J.H., Curran, R., Tamura, M., (2002): A &A385, 1014–1021 “The magnetic field structure in W51A”
Hildebrand, R. (1983): Quarterly J. Roy. Astron. Soc.24, 267
Hirschfield, J.L., Baldwin, D.E., Brown, S.C. (1961): Phys. Fluids4, 198
Kiepenheuer, K.O. (1950): Phys. Rev.79, 138 (Letter)
Kramers, H.A. (1923): Philos. Mag.46, 836
Meyer, P. (1969): Ann. Rev. Astron. Astrophys.7, 1
Mezger, P.G., Wink, J.E., Zylka, R. (1990): Astron. Astrophys.228, 95 (Appendix)
Oort, J.H., Walraven, T. (1956): Bull. Astron. Inst. Netherlands12, 285
Oster, L. (1959): Z. f. Astrophys.47, 169
Oster, L. (1961): Rev. Mod. Phys.33, 525
Scheuer, P.A.G. (1967): “Radiation” in Plasma Astrophysics, Ed. P.A. Sturrock, Proc. Int. Sch. Phys. “Enrico Fermi”, 39, (Academic Press, New York) p. 39
Schott, G.A. (1907): Ann. Phys. 4. Folge24, 635
Schott, G.A. (1912): Electromagnetic Radiation (Cambridge University Press, Cambridge)
Schwinger, J. (1949): Phys. Rev.75, 1912
Westfold, K.C. (1959): Astrophys. J.130, 241
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Rohlfs, K., Wilson, T.L. (2004). Emission Mechanisms of Continuous Radiation. In: Tools of Radio Astronomy. Astronomy and Astrophysics Library. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-05394-2_9
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DOI: https://doi.org/10.1007/978-3-662-05394-2_9
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