2016A&A...586A.124G


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.18CEST14:32:30

2016A&A...586A.124G - Astronomy and Astrophysics, volume 586A, 124-124 (2016/2-1)

The mysterious morphology of MRC 0943-242 as revealed by ALMA and MUSE.

GULLBERG B., DE BREUCK C., LEHNERT M.D., VERNET J., BACON R., DROUART G., EMONTS B., GALAMETZ A., IVISON R., NESVADBA N.P.H., RICHARD J., SEYMOUR N., STERN D. and WYLEZALEK D.

Abstract (from CDS):

We present a pilot study of the z=2.923 radio galaxy MRC0943-242, where we combine information from ALMA and MUSE data cubes for the first time. Even with modest integration times, we disentangle the AGN and starburst dominated components. These data reveal a highly complex morphology as the AGN, starburst, and molecular gas components show up as widely separated sources in dust continuum, optical continuum, and CO line emission observations. CO(1-0) and CO(8-7) line emission suggest that there is a molecular gas reservoir offset from both the dust and the optical continuum that is located ∼90kpc from the AGN. The UV line emission has a complex structure in emission and absorption. The line emission is mostly due to a large scale ionisation cone energised by the AGN, and a Lyα emitting bridge of gas between the radio galaxy and a heavily star-forming set of components. Strangely, the ionisation cone has no Lyα emission. We find this is due to an optically thick layer of neutral gas with unity covering fraction spread out over a region of at least ∼100kpc from the AGN. Other less thick absorption components are associated with Lyα emitting gas within a few tens of kpc from the radio galaxy and are connected by a bridge of emission. We speculate that this linear structure of dust, Lyα and CO emission, and the redshifted absorption seen in the circum nuclear region may represent an accretion flow feeding gas into this massive AGN host galaxy.

Abstract Copyright:

Journal keyword(s): galaxies: evolution - galaxies: high-redshift - galaxies: active - galaxies: ISM - galaxies: halos

Simbad objects: 13

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Number of rows : 13

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 PKS 0114-21 rG 01 16 51.56103995 -20 52 10.8021857     16.5     ~ 72 1
2 MRC 0152-209 rG 01 54 55.70 -20 40 26.0           ~ 30 2
3 MRC 0156-252 rG 01 58 33.480 -24 59 32.01   22.7       ~ 48 0
4 NVSS J020242+014910 rG 02 02 43.0 +01 49 09           ~ 32 1
5 4C 60.07 rG 05 12 54.80 +60 30 51.7           ~ 87 1
6 4C 41.17 rG 06 50 52.098 +41 30 30.53           ~ 315 1
7 NVSS J083053+191314 rG 08 30 53.44 +19 13 15.7           ~ 65 1
8 PMN J0945-2429 rG 09 45 32.7 -24 28 49           ~ 89 1
9 QSO B1034-293 QSO 10 37 16.07973476 -29 34 02.8133345   16.46 16.46 17.54   ~ 258 1
10 NAME Spiderweb Galaxy AGN 11 40 48.3 -26 29 09     22.00     ~ 244 1
11 [DBC2004] M03 rG 13 38 26.05 -19 42 30.5       22.4   ~ 88 0
12 PMN J2051-2702 rG 20 51 03.6 -27 03 03           ~ 33 1
13 87GB 232800.5+391033 EmG 23 30 24.94 +39 27 12.0   24.70 23.97     ~ 49 2

    Equat.    Gal    SGal    Ecl

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2019.10.18-14:32:30

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