Abstract
The recent data of the decametric survey carried out in Grakovo with the UTR-2 radio telescope and the data of a number of higher frequency surveys have been used for constructing the spectra of 147 discrete sources in the frequency range 12.6–1400 MHz.
The analysis of the spectra shows that the mean value of the spectral index for galaxies in an interval of declinations −2° to −13° is somewhat higher than for those with declinations from −2° to +20°, while the mean spectral indices of quasars and unidentified sources for these two declination ranges coincide quite well.
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Braude, S.Y., Miroshnitchenko, A.P., Sokolov, K.P. et al. Decametric survey of discrete sources. Astrophys Space Sci 76, 279–299 (1981). https://doi.org/10.1007/BF00687495
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DOI: https://doi.org/10.1007/BF00687495