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dc.contributor.authorJones, Garethen
dc.contributor.authorMaiolino, Robertoen
dc.contributor.authorCaselli, Pen
dc.contributor.authorCarniani, Stefanoen
dc.date.accessioned2019-12-12T00:33:14Z
dc.date.available2019-12-12T00:33:14Z
dc.identifier.issn0004-6361
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/299814
dc.description.abstractWe report the discovery of a high-redshift, massive molecular outflow in the starburst galaxy SPT0346-52 (z = 5:656) via the detected absorption of high-excitation water transitions (H2O 42;3 􀀀 41;4 and H2O 33;0 􀀀 32;1) with the Atacama Large Millimeter/ submillimeter Array (ALMA). The host galaxy is one of the most powerful starburst galaxies at high redshift (star formation rate; SFR ~ 3,600M $_{\odot}$ year{^{-}}1), with an extremely compact (~ 320 pc) star formation region and a star formation rate surface density ($\Sigma$SFR ~ 5; 500M$_{\odot}$ year{^{-}}1 kpc{^{-}}2) five times higher than ‘maximum’ (i.e. Eddington-limited) starbursts, implying a highly transient phase. The estimated outflow rate is ~ 500M$_{\odot}$ year{^{-}}1, which is much lower than the SFR, implying that in this extreme starburst the outflow capabilities saturate and the outflow is no longer capable of regulating star formation, resulting in a runaway process in which star formation will use up all available gas in less than 30 Myr. Finally, while previous kinematic investigations of this source revealed possible evidence for an ongoing major merger, the coincidence of the hyper-compact starburst and high-excitation water absorption indicates that this is a single starburst galaxy surrounded by a disc.
dc.description.sponsorshipIncludes STFC and ERC.
dc.publisherEDP Sciences
dc.rightsPublisher's own licence
dc.titleDetection of a high-redshift molecular outflow in a primeval hyperstarburst galaxyen
dc.typeArticle
prism.numberL7en
prism.publicationNameAstronomy & Astrophysicsen
prism.volume632en
dc.identifier.doi10.17863/CAM.46884
dcterms.dateAccepted2019-11-19en
rioxxterms.versionofrecord10.1051/0004-6361/201936989en
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2019-11-19en
dc.contributor.orcidJones, Gareth [0000-0002-0267-9024]
dc.contributor.orcidMaiolino, Roberto [0000-0002-4985-3819]
dc.contributor.orcidCarniani, Stefano [0000-0002-6719-380X]
dc.identifier.eissn1432-0746
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idSTFC (ST/M001172/1)
pubs.funder-project-idECH2020 EUROPEAN RESEARCH COUNCIL (ERC) (695671)
cam.issuedOnline2019-12-03en
dc.identifier.urlhttps://www.aanda.org/articles/aa/abs/2019/12/aa36989-19/aa36989-19.htmlen


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