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dc.contributor.authorLitke, Katrina C.
dc.contributor.authorMarrone, Daniel P.
dc.contributor.authorSpilker, Justin S.
dc.contributor.authorAravena, Manuel
dc.contributor.authorBéthermin, Matthieu
dc.contributor.authorChapman, Scott
dc.contributor.authorChen, Chian-Chou
dc.contributor.authorBreuck, Carlos de
dc.contributor.authorDong, Chenxing
dc.contributor.authorGonzalez, Anthony
dc.contributor.authorGreve, Thomas R.
dc.contributor.authorHayward, Christopher C.
dc.contributor.authorHezaveh, Yashar
dc.contributor.authorJarugula, Sreevani
dc.contributor.authorMa, Jingzhe
dc.contributor.authorMorningstar, Warren
dc.contributor.authorNarayanan, Desika
dc.contributor.authorPhadke, Kedar
dc.contributor.authorReuter, Cassie
dc.contributor.authorVieira, Joaquin
dc.contributor.authorWeiss, Axel
dc.date.accessioned2020-10-21T00:07:37Z
dc.date.available2020-10-21T00:07:37Z
dc.date.issued2019-01-10
dc.identifier.citationLitke, K. C., Marrone, D. P., Spilker, J. S., Aravena, M., Béthermin, M., Chapman, S., ... & Weiss, A. (2019). Spatially Resolved [C ii] Emission in SPT0346-52: A Hyper-starburst Galaxy Merger at z∼ 5.7. The Astrophysical Journal, 870(2), 80.en_US
dc.identifier.issn0004-637X
dc.identifier.doi10.3847/1538-4357/aaf057
dc.identifier.urihttp://hdl.handle.net/10150/647706
dc.description.abstractSPT0346-52 is one of the most most luminous and intensely star-forming galaxies in the universe, with L-FIR > 10(13) L-circle dot and Sigma(SFR) approximate to 4200 M-circle dot yr(-1) kpc(-2). In this paper, we present similar to 0 ''(center dot)15 ALMA observations of the [C II] 158 mu m emission line in this z = 5.7 dusty star-forming galaxy. We use a pixellated lensing reconstruction code to spatially and kinematically resolve the source-plane [C II] and rest-frame 158 mu m dust continuum structure at similar to 700 pc (similar to 0 ''(center dot)12) resolution. We discuss the [C II] deficit with a pixellated study of the L-[C II]/L-FIR ratio in the source plane. We find that individual pixels within the galaxy follow the same trend found using unresolved observations of other galaxies, indicating that the deficit arises on scales less than or similar to 700 pc. The lensing reconstruction reveals two spatially and kinematically separated components (similar to 1 kpc and similar to 500 km s(-1) apart) connected by a bridge of gas. Both components are found to be globally unstable, with Toomre Q instability parameters << 1 everywhere. We argue that SPT0346-52 is undergoing a major merger, which is likely driving the intense and compact star formation.en_US
dc.description.sponsorshipU.S. National Science Foundation (NSF) [AST-1715213, AST-1312950]; National Radio Astronomy Observatory (NRAO) [SOSPA4-007]; NSF [AST-1716127, MRI-1228509]; National Science Foundation [PLR-1248097]; Kavli Foundation; Gordon and Betty Moore Foundation [GBMF 947]; Simons Foundation; [PHY1125897]en_US
dc.language.isoenen_US
dc.publisherIOP PUBLISHING LTDen_US
dc.rights© 2019. The American Astronomical Society. All rights reserved.en_US
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en_US
dc.subjectgalaxies: high-redshiften_US
dc.subjectgalaxies: starbursten_US
dc.titleSpatially Resolved [C ii] Emission in SPT0346-52: A Hyper-starburst Galaxy Merger at z ∼ 5.7en_US
dc.typeArticleen_US
dc.identifier.eissn1538-4357
dc.contributor.departmentUniv Arizona, Steward Observen_US
dc.identifier.journalASTROPHYSICAL JOURNALen_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal published versionen_US
dc.source.journaltitleThe Astrophysical Journal
dc.source.volume870
dc.source.issue2
dc.source.beginpage80
refterms.dateFOA2020-10-21T00:07:48Z


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