The first VLBI image of an Infrared-Faint Radio Source
arXiv:0809.4922 · doi:10.1051/0004-6361:200810454
Abstract
Context: To investigate the joint evolution of active galactic nuclei and star formation in the Universe. Aims: In the 1.4 GHz survey with the Australia Telescope Compact Array of the Chandra Deep Field South and the European Large Area ISO Survey - S1 we have identified a class of objects which are strong in the radio but have no detectable infrared and optical counterparts. This class has been called Infrared-Faint Radio Sources, or IFRS. 53 sources out of 2002 have been classified as IFRS. It is not known what these objects are. Methods: To address the many possible explanations as to what the nature of these objects is we have observed four sources with the Australian Long Baseline Array. Results: We have detected and imaged one of the four sources observed. Assuming that the source is at a high redshift, we find its properties in agreement with properties of Compact Steep Spectrum sources. However, due to the lack of optical and infrared data the constraints are not particularly strong.
Accepted for publication in Astronomy and Astrophysics, 5 pages, needs aa.cls
References in corpus (1)
Cited by in corpus (8)
- Multiwavelength characterization of faint Ultra Steep Spectrum radio sources : A search for high-redshift radio galaxies
- Radio Spectra of Luminous, Heavily Obscured WISE-NVSS Selected Quasars
- The radio spectral energy distribution of infrared-faint radio sources
- Probing the nature of compact ultra-steep spectrum radio sources with the e-EVN and e-MERLIN
- On the nature of infrared-faint radio sources in the SXDF and VLA-VVDS fields
- Active galactic nuclei cores in infrared-faint radio sources: Very long baseline interferometry observations using the Very Long Baseline Array
- From Nearby Low Luminosity AGN to High Redshift Radio Galaxies: Science Interests with SKA
- Multiwavelength Properties of Infrared-Faint Radio Sources Based on Spectral Energy Distribution Analysis