J/A+A/658/L2ivo://CDS.VizieR/J/A+A/658/L2doi:10.26093/cds/vizier.36589002CDSDe Breuck C.Lundgren A.Emonts B.Kolwa S.Dannerbauer H.Lehnert M.2022-08-25T11:22:31Z2022-02-01T08:36:04ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frradio-galaxiesradio-spectroscopyWe 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.2022A&A...658L...2Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/658/L2CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/570/A55 : Spiderweb galaxy 870um and 1.4GHz images (Dannerbauer+, 2014)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/658/L2https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/658/L2http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/658/L2https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/658/L2https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/658/L2http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/658/L2GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapMillimeterRadiodefaultJ/A+A/658/L2/spectrum[CII]158um spectrumrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFreqSky frequencyGHzem.freqdoubleFluxFluxmJyphot.fluxdouble