Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977azh....54.1211l&link_type=abstract
Astronomicheskii Zhurnal, vol. 54, Nov.-Dec. 1977, p. 1211-1220. In Russian.
Astronomy and Astrophysics
Astronomy
1
Coronas, Galactic Radio Waves, Microwave Emission, Milky Way Galaxy, Centimeter Waves, Interstellar Gas, Interstellar Magnetic Fields, Ionized Gases, Synchrotron Radiation
Scientific paper
Results are presented for radio observations of the spherical component of the Galaxy at a wavelength of 4 cm. It is noted that several difficulties have arisen with the interpretation of the observed deficiency of decametric radio emission from the galactic-center region in terms of absorption in an ionized gas situated between the source and the observer. Therefore, the observed nature of the 4-cm radio emission and the space distribution of the spherical component are explained in the framework of a model of synchrotron emission from relativistic electrons having a distorted energy spectrum and moving in a magnetic field that decreases toward the galactic poles. It is found that the magnetic-field strength decreases from one hundred thousandth to one ten millionth gauss toward the periphery of the Galaxy.
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