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Evolution of low-frequency contribution in emission of steep-spectrum radio sources

Published online by Cambridge University Press:  12 October 2016

Alla P. Miroshnichenko
Alla P. Miroshnichenko*
Affiliation:
Institute of Radio Astronomy of NAS of Ukraine, UA-61002, Kharkov, Ukraine email: mir@rian.kharkov.ua
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Abstract

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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.

Keywords

Steep radio spectrumdecametre emissiongalaxyquasar
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S308: The Zeldovich Universe: Genesis and Growth of the Cosmic Web , June 2014 , pp. 631 - 635
Copyright
Copyright © International Astronomical Union 2016 

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