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dc.contributor.authorStrandet, M. L.
dc.contributor.authorWeiss, A.
dc.contributor.authorVieira, J. D.
dc.contributor.authorde Breuck, C.
dc.contributor.authorAguirre, J. E.
dc.contributor.authorAravena, Manuel
dc.contributor.authorAshby, M. L. N.
dc.contributor.authorBéthermin, M.
dc.contributor.authorBradford, C. M.
dc.contributor.authorCarlstrom, J. E.
dc.contributor.authorChapman, S. C.
dc.contributor.authorCrawford, T. M.
dc.contributor.authorEverett, W.
dc.contributor.authorFassnacht, C. D.
dc.contributor.authorFurstenau, R. M.
dc.contributor.authorGonzalez, Anthony H.
dc.contributor.authorGreve, T. R.
dc.contributor.authorGullberg, B.
dc.contributor.authorHezaveh, Y.
dc.contributor.authorKamenetzky, J. R.
dc.contributor.authorLitke, K.
dc.contributor.authorMa, J.
dc.contributor.authorMalkan, M.
dc.contributor.authorMarrone, Daniel P.
dc.contributor.authorMenten, Karl M.
dc.contributor.authorMurphy, Eric J.
dc.contributor.authorNadolski, A.
dc.contributor.authorRotermund, K. M.
dc.contributor.authorSpilker, J. S.
dc.contributor.authorStark, A. A.
dc.contributor.authorWelikala, N.
dc.date.accessioned2016-11-03T02:06:07Z
dc.date.available2016-11-03T02:06:07Z
dc.date.issued2016-05-10
dc.identifier.citationTHE REDSHIFT DISTRIBUTION OF DUSTY STAR-FORMING GALAXIES FROM THE SPT SURVEY 2016, 822 (2):80 The Astrophysical Journalen
dc.identifier.issn1538-4357
dc.identifier.doi10.3847/0004-637X/822/2/80
dc.identifier.urihttp://hdl.handle.net/10150/621235
dc.description.abstractWe use the Atacama Large Millimeter/submillimeter Array (ALMA) in Cycle 1 to determine spectroscopic redshifts of high-redshift dusty star-forming galaxies (DSFGs) selected by their 1.4 mm continuum emission in the South Pole Telescope (SPT) survey. We present ALMA 3 mm spectral scans between 84 and 114 GHz for 15 galaxies and targeted ALMA 1 mm observations for an additional eight sources. Our observations yield 30 new line detections from CO, [CI], [NII], H2O and NH3. We further present Atacama Pathfinder Experiment [CII] and CO mid-J observations for seven sources for which only a single line was detected in spectral-scan data from ALMA Cycle 0 or Cycle 1. We combine the new observations with previously published and new millimeter/submillimeter line and photometric data of the SPT-selected DSFGs to study their redshift distribution. The combined data yield 39 spectroscopic redshifts from molecular lines, a success rate of >85%. Our sample represents the largest data set of its kind today and has the highest spectroscopic completeness among all redshift surveys of high-z DSFGs. The median of the redshift distribution is z = 3.9 +/- 0.4, and the highest-redshift source in our sample is at z = 5.8. We discuss how the selection of our sources affects the redshift distribution, focusing on source brightness, selection wavelength, and strong gravitational lensing. We correct for the effect of gravitational lensing and find the redshift distribution for 1.4 mm selected sources with a median redshift of z = 3.1 +/- 0.3. Comparing to redshift distributions selected at shorter wavelengths from the literature, we show that selection wavelength affects the shape of the redshift distribution.
dc.description.sponsorshipInternational Max Planck Research School (IMPRS) for Astronomy and Astrophysics at the Universities of Bonn and Cologne; FONDECYT [1140099]; U.S. National Science Foundation [AST-1312950]; Herschel [OT1_jvieira_4, DDT_mstrande_1]; Commonwealth of Australia; VLT/X-Shooter under the ESO project [E-092.A-0503(A)]; National Science Foundation [PLR-1248097]; Kavli Foundation; Gordon and Betty Moore Foundation [GBMF 947]; [E-086. A-0793A-2010]; [M-085.F-0008-2010]; [M-087.F-0015-2011]; [M-091.F-0031-2013]; [E-094.A-0712A-2014]; [M-095.F-0028-2015]; [E-096.A-0939A-2015]; [PHY-1125897]en
dc.language.isoenen
dc.publisherIOP PUBLISHING LTDen
dc.relation.urlhttp://stacks.iop.org/0004-637X/822/i=2/a=80?key=crossref.72005beeb79ba19839c1b097a8cc6808en
dc.rights© 2016. The American Astronomical Society. All rights reserved.en
dc.subjectcosmology: observationsen
dc.subjectearly universeen
dc.subjectgalaxies: evolutionen
dc.subjectgalaxies: high-redshiften
dc.subjectISM: moleculesen
dc.titleTHE REDSHIFT DISTRIBUTION OF DUSTY STAR-FORMING GALAXIES FROM THE SPT SURVEYen
dc.typeArticleen
dc.contributor.departmentUniv Arizona, Steward Observen
dc.identifier.journalThe Astrophysical Journalen
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
dc.eprint.versionFinal published versionen
refterms.dateFOA2018-09-11T15:30:04Z
html.description.abstractWe use the Atacama Large Millimeter/submillimeter Array (ALMA) in Cycle 1 to determine spectroscopic redshifts of high-redshift dusty star-forming galaxies (DSFGs) selected by their 1.4 mm continuum emission in the South Pole Telescope (SPT) survey. We present ALMA 3 mm spectral scans between 84 and 114 GHz for 15 galaxies and targeted ALMA 1 mm observations for an additional eight sources. Our observations yield 30 new line detections from CO, [CI], [NII], H2O and NH3. We further present Atacama Pathfinder Experiment [CII] and CO mid-J observations for seven sources for which only a single line was detected in spectral-scan data from ALMA Cycle 0 or Cycle 1. We combine the new observations with previously published and new millimeter/submillimeter line and photometric data of the SPT-selected DSFGs to study their redshift distribution. The combined data yield 39 spectroscopic redshifts from molecular lines, a success rate of >85%. Our sample represents the largest data set of its kind today and has the highest spectroscopic completeness among all redshift surveys of high-z DSFGs. The median of the redshift distribution is z = 3.9 +/- 0.4, and the highest-redshift source in our sample is at z = 5.8. We discuss how the selection of our sources affects the redshift distribution, focusing on source brightness, selection wavelength, and strong gravitational lensing. We correct for the effect of gravitational lensing and find the redshift distribution for 1.4 mm selected sources with a median redshift of z = 3.1 +/- 0.3. Comparing to redshift distributions selected at shorter wavelengths from the literature, we show that selection wavelength affects the shape of the redshift distribution.


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