2022A&A...658L...2D


Query : 2022A&A...658L...2D

2022A&A...658L...2D - Astronomy and Astrophysics, volume 658, L2-2 (2022/2-1)

Feeding the spider with carbon. [CII] emission from the circumgalactic medium and active galactic nucleus.

DE BREUCK C., LUNDGREN A., EMONTS B., KOLWA S., DANNERBAUER H. and LEHNERT M.

Abstract (from CDS):

We present the detection of [CII] 158 µm emission from the Spiderweb galaxy at z = 2.1612 using the Atacama Pathfinder EXperiment (APEX). The line profile splits into an active galactic nucleus (AGN) and circumgalactic medium (CGM) component previously identified in CO and [CI]. We find that these individual [CII] components are consistent in terms of CO and far-IR luminosity ratios with the populations of other z ≥ 1 AGN and dusty star-forming galaxies. The CGM component dominates the [CII] emission in the 10'' APEX beam. Although we do not have spatially resolved data, the close correspondence of the velocity profile with the CO(1-0) detected only on scales of tens of kiloparsecs in CO(1-0) suggests that the [CII] emission is similarly extended, reminiscent of [CII] halos recently found around z > 5 galaxies. Comparing the first four ionization states of carbon, we find that the atomic [CI] emission is dominant, which increases its reliability as a molecular mass tracer. Our [CII] detection at 601.8 GHz also demonstrates the feasibility to extend the frequency range of ALMA Band 9 beyond the original specifications.

Abstract Copyright: © ESO 2022

Journal keyword(s): galaxies: high-redshift - galaxies: ISM - submillimeter: ISM

VizieR on-line data: <Available at CDS (J/A+A/658/L2): spectrum.dat>

CDS comments: Source #5 not in SIMBAD.

Simbad objects: 3

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Number of rows : 3
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 IRC +10216 C* 09 47 57.40632 +13 16 43.5648           C9,5e 2341 0
2 V* V Hya C* 10 51 37.2615873024 -21 15 00.333928044   12.23 6.80 7.42   C-N:6 366 0
3 MRC 1138-262 AGN 11 40 48.91 -26 29 08.9     22.00     ~ 293 1

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