On the Spectral Index of Distant Radio Galaxies - Astrophysics > Cosmology and Nongalactic AstrophysicsReportar como inadecuado




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Abstract: The problems of using the spectral index of radio galaxies in various tests,in particular, in selecting distant radio sources are considered. The historyof the question of choosing a criterion of searching for distant radio galaxiesbased on the spectral index is presented. For a new catalog of 2442 radiogalaxies constructed from NED, SDSS, and CATS data, an analytical form of thesp ectral index.redshift relation has been determined for the first time. Thespectral index.angular size and spectral index.flux density diagrams have alsobeen constructed. Peculiarities of the distribution of sources on thesediagrams are discussed.



Autor: O.V.Verkhodanov, M.L.Khabibullina

Fuente: https://arxiv.org/







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