J/A+A/658/L2 Spiderweb galaxy [CII] 158um spectrum (De Breuck+, 2022)
Feeding the spider with carbon.
[CII] emission from the circum galactic medium and active galactic nucleus.
De Breuck C., Lundgren A., Emonts B., Kolwa S., Dannerbauer H., Lehnert M.
<Astron. Astrophys. 658, L2 (2022)>
=2022A&A...658L...2D 2022A&A...658L...2D (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, radio ; Spectra, millimetric/submm
Keywords: galaxies: high-redshift - galaxies: ISM - submillimeter: ISM
Abstract:
We present the detection of [CII] 158um emission from the Spiderweb
galaxy at z=2.1612 using the Atacama Pathfinder EXperiment. The line
profile splits into an active galactic nucleus (AGN) and circum
galactic 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.
Description:
This data release includes the reduced spectrum of the [CII] line
presented in Fig. 1 of the paper.
Objects:
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RA (2000) DE Designation(s)
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11 40 48.3 -26 29 09 Spiderweb galaxy = LEDA 2826829
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
spectrum.dat 34 57 [CII]158um spectrum
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See also:
J/A+A/570/A55 : Spiderweb galaxy 870um and 1.4GHz images (Dannerbauer+, 2014)
Byte-by-byte Description of file: spectrum.dat
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Bytes Format Units Label Explanations
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1- 15 F15.11 GHz Freq Sky frequency
17- 34 F18.13 mJy Flux Flux
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Acknowledgements:
Carlos De Breuck, cdebreuc(at)eso.org
(End) Carlos De Breuck [ESO], Patricia Vannier [CDS] 15-Jan-2022