2016A&A...585A..32H


Query : 2016A&A...585A..32H

2016A&A...585A..32H - Astronomy and Astrophysics, volume 585A, 32-32 (2016/1-1)

GTC optical imaging of extremely red 5C radio galaxies at high redshift.

HUMPHREY A., VILLAR-MARTIN M. and LAGOS P.

Abstract (from CDS):

We investigate the nature of seven unusual radio galaxies from the 5C catalogue that were previously known to have extremely red R-K colours, and for which emission lines were previously found to be weak or absent in their optical spectra. We present and discuss u, g, or r images of these radio galaxies, obtained using the Optical System for Imaging and low-Intermediate-Resolution Integrated Spectroscopy (OSIRIS) at the Gran Telescopio Canarias (GTC). We have detected all seven targets in our g-band imaging. Their optical emission is extended, and we tentatively detect a radio-optical alignment effect in this sample. A subset of our sample (three sources) shows broad-band spectral energy distributions that flatten out near the wavelength range of the g-band, implying a dominant contribution there due to young stars and/or scattered or reprocessed radiation from the active nucleus.

Abstract Copyright:

Journal keyword(s): galaxies: active - galaxies: evolution - galaxies: high-redshift - galaxies: jets - quasars: general - galaxies: star formation

Simbad objects: 7

goto Full paper

goto View the references in ADS

Number of rows : 7
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 B2 0206+34 rG 02 09 20.10 +34 28 35.3           ~ 7 0
2 NVSS J021326+330757 Rad 02 13 26.70 +33 07 57.2           ~ 11 1
3 NVSS J021406+305347 rG 02 14 06.70 +30 53 47.0   20.0       ~ 9 1
4 NVSS J022114+311705 Rad 02 21 14.40 +31 17 05.3           ~ 8 1
5 NVSS J081538+244658 rG 08 15 38.3 +24 47 00           ~ 8 1
6 NVSS J082317+245636 rG 08 23 17.80 +24 56 39.0           ~ 8 2
7 NVSS J082556+264357 rG 08 25 56.72 +26 43 58.3           ~ 12 1

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2016A&A...585A..32H and select 'bookmark this link' or equivalent in the popup menu


2021.07.28-23:28:09

© Université de Strasbourg/CNRS

    • Contact