A survey of Low Luminosity Compact sources

Details A survey of Low Luminosity Compact sources A survey of Low Luminosity Compact sources

2009-03-23

arxiv.org/abs/0903.3838v2

Astron.Nachr.330:210-213,2009

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

4 pages, Proceedings of "The 4th CSS/GPS Workshop" held at Riccione, Italy, 26-29 May 2008

Scientific paper

10.1002/asna.200811158

Based on the FIRST and SDSS catalogues a flux density limited sample of weak Compact Steep Spectrum (CSS) sources with radio luminosity below 10^26 [W/Hz] at 1.4 GHz has been constructed. Our previous multifrequency observations of CSS sources have shown that low luminosity small-scale objects can be strong candidates for compact faders. This finding supports the idea that some small-size radio sources are short-lived phenomena because of a lack of significant fuelling. They never 'grow up' to become FRI or FRII objects. This new sample marks the start of a systematical study of the radio properties and morphologies of the population of low luminosity compact (LLC) objects. An investigation of this new sample should also lead to a better understanding of compact faders. In this paper, the results of the first stage of the new project - the L-band MERLIN observations of 44 low luminosity CSS sources are presented.

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