Radio properties of Compact Steep Spectrum and GHz-Peaked Spectrum radio sources

Abstract

Compact steep spectrum (CSS) and GHz-peaked spectrum (GPS) radio sources represent a large fraction of the extragalactic objects in flux density-limited samples. They are compact, powerful radio sources whose synchrotron peak frequency ranges between a few hundred MHz to several GHz. CSS and GPS radio sources are currently interpreted as objects in which the radio emission is in an early evolutionary stage. In this contribution I review the radio properties and the physical characteristics of this class of radio sources, and the interplay between their radio emission and the ambient medium of the host galaxy.

9 pages, 4 figures. Accepted for publication in Astronomische Nachrichten. Review presented at the 5th Workshop on CSS and GPS radio sources, held in Rimini (Italy) in May 2015

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