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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Properties of submillimeter galaxies in the candels goods-south field
Astrophysical Journal, Volume 785, No. 2, Article 111, Year 2014
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Description
We derive physical properties of 10 submillimeter galaxies located in the CANDELS coverage of the GOODS-S field. The galaxies were first identified as submillimeter sources with the LABOCA bolometer and subsequently targeted for 870 μm continuum observation with ALMA. The high angular resolution of the ALMA imaging allows secure counterparts to be identified in the CANDELS multiband data set. The CANDELS data provide deep photometric data from UV through near-infrared wavelengths. Using synthetic spectral energy distributions, we derive photometric redshifts, stellar masses, extinction, ages, and the star formation history. The redshift range is z = 1.65-4.76, with two of the galaxies located at z > 4. Two submillimeter galaxy (SMG) counterparts have stellar masses 2-3 orders of magnitude lower than the rest. The remaining SMG counterparts have stellar masses around 1 × 10 11 M. The stellar population in the SMGs is typically older than the expected duration of the submillimeter phase, suggesting that the star formation history of SMGs is more complex than a single burst. Non-parametric morphology indices suggest that the SMG counterparts are among the most asymmetric systems compared with galaxies of the same stellar mass and redshift. The Hubble Space Telescope images show that three of the SMGs are associated with ongoing mergers. The remaining counterparts are isolated. Estimating the dust and molecular gas mass from the submillimeter fluxes, and comparing with our stellar masses shows that the gas mass fraction of SMGs is 28% and that the final stellar mass is likely to be (1-2) × 1011 M⊙. © 2014. The American Astronomical Society. All rights reserved.
Authors & Co-Authors
Wiklind, Thomas G.
Chile, Santiago
European Southern Observatory Santiago
Conselice, Christopher J.
United Kingdom, Nottingham
University of Nottingham
Dahlén, Tomas
United States, Baltimore
Space Telescope Science Institute
Dickinson, Mark E.
United States, Tucson
National Optical Observatories
Ferguson, Henry C.
United States, Baltimore
Space Telescope Science Institute
Grogin, Norman A.
United States, Baltimore
Space Telescope Science Institute
Guo, Yicheng
United States, Mount Hamilton
Lick Observatory
Koekemoer, Anton M.
United States, Baltimore
Space Telescope Science Institute
Mobasher, Bahram
United States, Riverside
University of California, Riverside
Mortlock, Alice
United Kingdom, Nottingham
University of Nottingham
Fontana, A.
Italy, Monte Porzio Catone
Osservatorio Astronomico Di Roma
Dav́e, Romeel
South Africa, Bellville
University of the Western Cape
South Africa, Cape Town
Observatory
South Africa, Muizenberg
African Institute for Mathematical Sciences
Yan, Haojing
United States, Columbia
University of Missouri
Acquaviva, Viviana
United States, New York
New York City College of Technology
Ashby, Matthew L.N.
United States, Cambridge
Harvard-smithsonian Center for Astrophysics
Barro, Guillermo
United States, Mount Hamilton
Lick Observatory
Caputi, Karina I.
Netherlands, Groningen
Kapteyn Instituut
Castellano, Marco
Italy, Monte Porzio Catone
Osservatorio Astronomico Di Roma
Dekel, Avishai
Israel, Jerusalem
Hebrew University of Jerusalem
Donley, Jennifer L.
United States, Los Alamos
Los Alamos National Laboratory
Fazio, Giovanni G.
United States, Cambridge
Harvard-smithsonian Center for Astrophysics
Giavalisco, Mauro
United States, Amherst
University of Massachusetts Amherst
Grazian, Andrea
Italy, Monte Porzio Catone
Osservatorio Astronomico Di Roma
Hathi, Nimish P.
France, Marseille
Laboratoire D'astrophysique de Marseille
Kurczynski, Peter L.
United States, New Brunswick
Rutgers University–new Brunswick
Lu, Yu J.
United States, Stanford
Kavli Institute for Particle Astrophysics and Cosmology
McGrath, Elizabeth J.
United States, Waterville
Colby College
de Mello, Duília F.
United States, Washington, D.c.
The Catholic University of America
Peth, Michael A.
United States, Baltimore
Johns Hopkins University
Safarzadeh, Mohammad
United States, Baltimore
Johns Hopkins University
Stefanon, Mauro
United States, Columbia
University of Missouri
Targett, Thomas A.
United Kingdom, Edinburgh
University of Edinburgh, Institute for Astronomy
United States, Rohnert Park
Sonoma State University
Statistics
Citations: 35
Authors: 32
Affiliations: 25
Identifiers
Doi:
10.1088/0004-637X/785/2/111
ISSN:
0004637X
e-ISSN:
15384357
Research Areas
Health System And Policy
Study Design
Cross Sectional Study