The kpc-scale radio source population

Augusto, P. (1), Gonzalez-Serrano, J. I. (2), Edge, A. C. (3), Gizani, N. A. B. (4), Wilkinson, P. N. (5) and Perez-Fournon, I. (6)

(1) Universidade da Madeira, Centro de Ciências Matemáticas, Caminho da Penteada, 9000 Funchal, Portugal
(2) Instituto de Física de Cantabria (CSIC-Universidad de Cantabria), Facultad de Ciencias, 39005 Santander, Spain
(3) University of Durham, Department of Physics, South Road, Durham DH1 3CE, UK
(4) University of Ioannina, Section of Astro-Geophysics, Department of Physics, 45110 Ioannina, Greece
(5) University of Manchester, Nuffield Radio Astronomy Laboratories, Jodrell Bank, Macclesfield, Cheshire SK11 9DL, UK
(6) Instituto de Astrofísica de Canarias, c/ Via Láctea s/n, 38200 La Laguna, Tenerife, Spain

We are conducting a multi-wavelength (radio, optical, and X-ray) observational campaign to classify, morphologically and physically, a sample of 55 flat-spectrum radio sources dominated by structure on kpc-scales. This sample contains 22 compact-/medium-sized symmetric object candidates, a class of objects thought to be in the early stages of the evolution of radio galaxies. The vast majority of the remaining objects have core-plus-one-sided-jet structures, half of which show sharply bent jets, probably due to strong interactions with the interstellar medium of the host galaxies. Once the observational campaign is completed, we will constrain evolutionary theories of radio galaxies at their intermediate stages and possibly understand the physics of the hypothesised narrow-line region in active galactic nuclei, given our advantageous statistical position.

Class:	Article
Links:	ADS, arXiv
Reference:	Augusto P., et al. 1999, New Astronomy Reviews, 43, 663 [eds: Garrett, M.A., Campbell, R.M., Gurvits, L.I (ISSN: 1387-6473)]
Download:	pdf (arXiv)