A study of giant radio galaxies at RATAN-600

TL;DR

This paper presents flux density measurements of thirteen giant radio galaxies using RATAN-600, analyzes their spectra, and discusses their contribution to background radiation.

Contribution

It provides new flux density data and spectral analysis for giant radio galaxies, highlighting their significance in cosmic background radiation studies.

Findings

Spectral indices vary across frequencies.

Giant radio galaxies significantly contribute to background radiation.

New flux measurements enhance understanding of galaxy spectra.

Abstract

We report the results of flux density measurements in the extended components of thirteen giant radio galaxies, made with the RATAN-600 in the centimeter range. Supplementing them with the WENSS, NVSS and GB6 survey data we constructed the spectra of the studied galaxy components. We computed the spectral indices in the studied frequency range and demonstrate the need for a detailed account of the integral contribution of such objects into the background radiation.