Show simple item record

dc.contributor.authorRivera, Jesus
dc.contributor.authorBaker, Andrew J.
dc.contributor.authorGallardo, Patricio A.
dc.contributor.authorGralla, Megan B.
dc.contributor.authorHarris, Andrew I.
dc.contributor.authorHuffenberger, Kevin M.
dc.contributor.authorHughes, John P.
dc.contributor.authorKeeton, Charles R.
dc.contributor.authorLópez-Caraballo, Carlos H.
dc.contributor.authorMarriage, Tobias A.
dc.contributor.authorPartridge, Bruce
dc.contributor.authorSievers, Jonathan L.
dc.contributor.authorTagore, Amitpal S.
dc.contributor.authorWalter, Fabian
dc.contributor.authorWeiß, Axel
dc.contributor.authorWollack, Edward J.
dc.date.accessioned2019-08-15T18:43:30Z
dc.date.available2019-08-15T18:43:30Z
dc.date.issued2019-07-11
dc.identifier.citationRivera, J., Baker, A. J., Gallardo, P. A., Gralla, M. B., Harris, A. I., Huffenberger, K. M., ... & Partridge, B. (2019). The Atacama Cosmology Telescope: CO (J= 3–2) Mapping and Lens Modeling of an ACT-selected Dusty Star-forming Galaxy. The Astrophysical Journal, 879(2), 95.en_US
dc.identifier.issn0004-637X
dc.identifier.doi10.3847/1538-4357/ab264b
dc.identifier.urihttp://hdl.handle.net/10150/633841
dc.description.abstractWe report Northern Extended Millimeter Array CO(J = 3 - 2) observations of the dusty star-forming galaxy ACT-S J020941+001557 at z = 2.5528, which was detected as an unresolved source in the Atacama Cosmology Telescope (ACT) equatorial survey. Our spatially resolved spectral line data support the derivation of a gravitational lens model from 37 independent velocity channel maps using a pixel-based algorithm, from which we infer a velocity-dependent magnification factor mu approximate to 7-22 with a luminosity-weighted mean <mu > approximate to 13. The resulting source-plane reconstruction is consistent with a rotating disk, although other scenarios cannot be ruled out by our data. After correction for lensing, we derive a line luminosity LCO(3-2)' = (5.53 +/- 0.69) x 10(10) K km s(-1) pc(2), a cold gas mass M-gas = (3.86 +/- 0.33) x 10(10) M-circle dot, a dynamical mass M-dyn sin(2) i = 3.9(-1.5)(+1.8) x 10(10) M-circle dot, and a gas mass fraction f(gas) csc(2) i = 1.0(-0.4)(+0.8). The line brightness temperature ratio of r(3,1) approximate to 1.6 relative to a Green Bank Telescope CO(J = 1 - 0) detection may be elevated by a combination of external heating of molecular clouds, differential lensing, and/or pointing errors.en_US
dc.description.sponsorshipIRAM NOEMA Interferometer [W16DX]; INSU/CNRS (France); MPG (Germany); IGN (Spain); U.S. National Science Foundation [AST-0955810, AST-1716585, AST-0408698, PHY-0855887, PHY-1214379]; Princeton University; University of Pennsylvania; Canada Foundation for Innovation (CFI); Comision Nacional de Investigacion Cientifica y Tecnologica de Chile (CONICYT); CONICYT [Anillo ACT-1417]; CFI under Compute Canada; Government of Ontario; Ontario Research Fund Research Excellence; University of Torontoen_US
dc.language.isoenen_US
dc.publisherIOP PUBLISHING LTDen_US
dc.rightsCopyright © 2019. The American Astronomical Society. All rights reserved.en_US
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectgalaxies: high-redshiften_US
dc.subjectgalaxies: ISMen_US
dc.subjectgalaxies: starbursten_US
dc.subjectgravitational lensing: strongen_US
dc.titleThe Atacama Cosmology Telescope: CO(J = 3 – 2) Mapping and Lens Modeling of an ACT-selected Dusty Star-forming Galaxyen_US
dc.typeArticleen_US
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.volume879
dc.source.issue2
dc.source.beginpage95
refterms.dateFOA2019-08-15T18:43:30Z


Files in this item

Thumbnail
Name:
Rivera_2019_ApJ_879_95.pdf
Size:
1.160Mb
Format:
PDF
Description:
Final Published Version

This item appears in the following Collection(s)

Show simple item record