The micro-Jy Radio Source Population: the VLA-CDFS View

2007/01/17 by Padovani, P., Mainieri, V., Tozzi, P. +5
#Astrophysics (astro-ph) #FOS: Physical sciences

paper · doi:10.48550/arxiv.astro-ph/0701493

Abstract

We analyse the 267 radio sources from our deep (flux limit of 42 microJy at the field center at 1.4 GHz) Chandra Deep Field South 1.4 and 5 GHz VLA survey. The radio population is studied by using a wealth of multi-wavelength information, including morphology and spectral types, in the radio, optical, and X-ray bands. The availability of redshifts for ~ 70% of our sources allows us to derive reliable luminosity estimates for the majority of the objects. Contrary to some previous results, we find that star-forming galaxies make up only a minority (~ 1/3) of sub-mJy sources, the bulk of which are faint radio galaxies, mostly of the Fanaroff-Riley I type.

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