2005A&A...430L...1D


Query : 2005A&A...430L...1D

2005A&A...430L...1D - Astronomy and Astrophysics, volume 430, L1-4 (2005/1-4)

Detection of two massive CO systems in 4C 41.17 at z = 3.8.

DE BREUCK C., DOWNES D., NERI R., VAN BREUGEL W., REULAND M., OMONT A. and IVISON R.

Abstract (from CDS):

We have detected CO(4-3) in the z=3.8 radio galaxy 4C 41.17 with the IRAM Interferometer. The CO is in two massive (Mdyn∼6x1010M) systems separated by 1.8" (13kpc), and by 400km/s in velocity, which coincide with two different dark lanes in a deep Lyα image. One CO component coincides with the cm-radio core of the radio galaxy, and its redshift is close to that of the HeII λ 1640 AGN line. The second CO component is near the base of a cone-shaped region southwest of the nucleus, which resembles the emission-line cones seen in nearby AGN and starburst galaxies. The characteristics of the CO sources and their mm/submm dust continuum are similar to those found in ultraluminous IR galaxies and in some high-z radio galaxies and quasars. The fact that 4C 41.17 contains two CO systems is further evidence for the role of mergers in the evolution of galaxies at high redshift.

Abstract Copyright:

Journal keyword(s): galaxies: individual: 4C 41.17 - galaxies: active - galaxies: formation - radio lines: galaxies

CDS comments: 6C 1909+72 = 6C 1909+7215, B3 J2330+3927 = B3 2327+391, TN J0120+1320 = [DVR2000] TN J0121+1320 in SIMBAD.

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 NVSS J012142+132058 Rad 01 21 42.69 +13 20 58.1           ~ 35 0
2 4C 60.07 rG 05 12 54.80 +60 30 51.7           ~ 89 1
3 4C 41.17 rG 06 50 52.098 +41 30 30.53           ~ 322 1
4 NAME TX J1908+7220 rG 19 08 23.50 +72 20 09.8           ~ 53 1
5 87GB 232800.5+391033 EmG 23 30 24.94 +39 27 12.0   24.70 23.97     ~ 50 2

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2022.05.22-01:13:39

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