On the Spectral Index of Distant Radio Galaxies

Abstract

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

7 pages,5 figures

References in corpus (6)

• The Sloan Digital Sky Survey Quasar Catalog IV. Fifth Data Release
• Distant Radio Galaxies and their Environments
• A search for distant radio galaxies from SUMSS and NVSS: III. radio spectral energy distributions and the z-alpha correlation
• Counting Chiral Operators in Quiver Gauge Theories
• Current status of the CATS database
• Radio identification of decameter-wave sources. II: The 30deg<delta<40deg declination interval

Cited by in corpus (1)

• High-redshift quasars at $z\ge 3$ -- I. Radio spectra