Symmetry Parameters of CSS Sources: Evidence of Fuelling?

Abstract

The compact steep spectrum (CSS) and gigahertz peaked spectrum (GPS) sources are widely believed to be young radiosources, with ages <10^6 yr. If the activity in the nucleus is fuelled by the supply of gas, one might find evidence of this gas by studying the structural and polarisation characteristics of CSS sources and their evolution through this gas. In this paper we discuss some of the possible `smoking-gun' evidence of this gas which may have triggered and fuelled the radio source.

arXiv comment11 pages, 8 figures

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• Classical radio source propagating into outer HI disc in NGC 3801
• Jetted subgalactic-size radio sources in merging galaxies -- A jet redirection scenario
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• SMA Observations of the Archetypal Compact Steep-spectrum Radio Source 3C 303.1