2008A&A...491..435M


C.D.S. - SIMBAD4 rel 1.7 - 2020.04.05CEST00:32:20

2008A&A...491..435M - Astronomy and Astrophysics, volume 491, 435-439 (2008/11-4)

The first VLBI image of an infrared-faint radio source.

MIDDELBERG E., NORRIS R.P., TINGAY S., MAO M.Y., PHILLIPS C.J. and HOTAN A.W.

Abstract (from CDS):

We investigate the joint evolution of active galactic nuclei and star formation in the Universe. In the 1.4GHz 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. 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. 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.

Abstract Copyright:

Journal keyword(s): galaxies: active - galaxies: peculiar

Status at CDS:  

Simbad objects: 14

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Number of rows : 14

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 ICRF J002442.9-420203 G 00 24 42.98993 -42 02 03.9507   22       ~ 59 0
2 ATELAIS J003138.63-435220.8 Rad 00 31 38.60 -43 52 20.9           ~ 8 0
3 ATELAIS J003216.05-433329.6 Rad 00 32 15.99 -43 33 34.2           ~ 3 0
4 ATELAIS J003411.59-435817.0 Rad 00 34 11.56 -43 58 17.1           ~ 10 0
5 ATELAIS J003413.43-435802.4 Rad 00 34 13.4300 -43 58 02.470           ~ 4 0
6 QSO B0104-408 QSO 01 06 45.10796851 -40 34 19.9602291   18.60 19.0 19.25   ~ 117 0
7 3C 48 QSO 01 37 41.2995845985 +33 09 35.079126038   16.62 16.20     ~ 2471 2
8 ICRF J025246.1-710435 G 02 52 46.15578 -71 04 35.2742   19.0 19.0     ~ 84 1
9 NAME Chandra Deep Field-South reg 03 32 28.0 -27 48 30           ~ 1789 1
10 ICRF J115421.7-350529 Sy1 11 54 21.7845240380 -35 05 29.081533088   18.81 17.84     ~ 114 1
11 3C 273 BLL 12 29 06.6996828061 +02 03 08.598846466   13.05 14.830 14.11   ~ 5282 1
12 ICRF J181935.0-634548 Sy2 18 19 35.00241 -63 45 48.1926   16.80   13.4   ~ 133 1
13 QSO B1921-293 BLL 19 24 51.05595514 -29 14 30.1210524   18.71 18.21 15.07   ~ 674 0
14 ICRF J193925.0-634245 Sy2 19 39 25.02671 -63 42 45.6255   18.87 18.37 17.64   ~ 942 1

    Equat.    Gal    SGal    Ecl

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2020.04.05-00:32:20

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