Evolution of low-frequency contribution in emission of steep-spectrum radio sources. Issue Volume 11:Issue S308(2015) (12th October 2016)

• Record Type: Journal Article
• Authors: Miroshnichenko, Alla P.
• Editors: van de Weygaert, R.; Shandarin, S.; Saar, E.; Einasto, J.
• Is Part Of: Proceedings of the International Astronomical Union. Volume 11:Issue S308(2015)
• Page Start: 631
• Page End: 635
• Publication Date: 2016-10-12
• Subjects: Steep radio spectrum, -- decametre emission, -- galaxy, -- quasar; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921316010735
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: We consider evolution properties of galaxies and quasars with steep radio spectrum at the decametre band from the UTR-2 catalogue. The ratios of source's monochromatic luminosities at the decametre and high-frequency bands display the dependence on the redshift, linear size, characteristic age of examined objects. At that, the mean values of corresponding ratios for considered galaxies and quasars have enough close quantities, testifying on the unified model of sources. We analyse obtained relations for two types of steep-spectrum sources (with linear steep spectrum (S) and low-frequency steepness after a break (C+)) from the UTR-2 catalogue.