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Unpublished Paper
Properties of Submillimeter Galaxies in the Candels Goods-South Field
The Astrophysical Journal (2014)
  • Tommy Wiklind
  • Christopher J. Conselice
  • Thomas Dahlen
  • Mark E. Dickinson
  • Henry C. Ferguson
  • Norman A. Grogin
  • Yicheng Guo
  • Anton Koekemoer
  • Bahram Mobasher
  • Alice Mortlock
  • Adriano Fontana
  • Romeel Dave
  • Haojin Yan
  • Viviana Aequaviva
  • Matthew L.N. Ashby
  • Guillermo Barro
  • Karina L. Caputi
  • Marco Castellano
  • Avishai Dekel
  • Jennifer L. Donley
  • Giovanni G. Fazio
  • Mauro Giavalisco, University of Massachusetts - Amherst
  • Andrea Grazian
  • Nimish P. Hathi
  • Peter Kurezynski
  • Yu Lu
  • Elizabeth J. McGrath
  • Duilia F. de Mello
  • Michael Peth
  • Mohammed Sarafzedeh
  • Mauro Stefanon
  • Thomas Targett
We derive physical properties of 10 submillimeter galaxies located in the CANDELS coverage of the GOODS-South Field. The galaxies were first identified as sub- millimeter sources with the LABOCA bolometer and subsequently targeted for 870µm continuum observation with ALMA. The high angular resolution of the ALMA imaging allows secure counterparts to be identified in the CANDELS multiband dataset. 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 SMG counterparts have stellar masses 2-3 orders of magnitude lower than the rest. The remaining SMG counterparts have stellar masses around 1 _ 1011M_. The stellar population in the SMGs is typically older than the expected duration of the submillimeter phase, suggesting that the star formation history of submillimeter galaxies 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 HST images show that 3 of the SMGs are associated with on-going mergers. The remaining counterparts are isolated. Estimating the dust and molecular gas mass from the submm 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) x 1011M_.
  • cosmology: observations,
  • galaxies: formation,
  • galaxies: high redshift,
  • galaxies: photometry,
  • galaxies: evolution
Publication Date
February 13, 2014
Prepublished version downloaded from ArXiv. Published version is located at
Citation Information
Tommy Wiklind, Christopher J. Conselice, Thomas Dahlen, Mark E. Dickinson, et al.. "Properties of Submillimeter Galaxies in the Candels Goods-South Field" The Astrophysical Journal (2014)
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