English

FIRST-based survey of Compact Steep Spectrum sources I. MERLIN images of arc-second scale objects

Astrophysics 2009-11-07 v2

Abstract

Compact Steep Spectrum (CSS) sources are powerful extragalactic radio sources with angular dimensions of the order of a few arcseconds or less. Such a compactness is apparently linked to the youth of these objects. The majority of CSSs investigated so far have been known since the early 1980s. This paper is the first in a series where we report the results of an observational campaign targeted on a completely new sample of CSSs which are significantly weaker than those investigated before. The ultimate goal of that campaign is to find out how ``weak'' CSSs compare to ``strong'', classical ones, especially with regard to the morphologies. Here we present an analysis of morphological and physical properties of five relatively large sources based on MERLIN observations at 1.6 and 5 GHz.

Keywords

Cite

@article{arxiv.astro-ph/0112511,
  title  = {FIRST-based survey of Compact Steep Spectrum sources I. MERLIN images of arc-second scale objects},
  author = {M. Kunert and A. Marecki and R. E. Spencer and A. J. Kus and J. Niezgoda},
  journal= {arXiv preprint arXiv:astro-ph/0112511},
  year   = {2009}
}

Comments

8 pages, 7 figures, A&A in press