Properties of submillimeter galaxies in the candels goods-south field

Tommy Wiklind, Christopher J. Conselice, Tomas Dahlen, Mark E. Dickinson, Henry C. Ferguson, Norman A. Grogin, Yicheng Guo, Anton M. Koekemoer, Bahram Mobasher, Alice Mortlock, Adriano Fontana, Romeel Davé, Haojing Yan, Viviana Acquaviva, Matthew L.N. Ashby, Guillermo Barro, Karina I. Caputi, Marco Castellano, Avishai Dekel, Jennifer L. DonleyGiovanni G. Fazio, Mauro Giavalisco, Andrea Grazian, Nimish P. Hathi, Peter Kurczynski, Yu Lu, Elizabeth J. McGrath, Duilia F. De Mello, Michael Peth, Mohammad Safarzadeh, Mauro Stefanon, Thomas Targett

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

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.

Original languageEnglish (US)
Article number111
JournalAstrophysical Journal
Volume785
Issue number2
DOIs
StatePublished - Apr 20 2014

Fingerprint

stellar mass
galaxies
star formation
histories
mass extinction
bolometers
molecular gases
spectral energy distribution
history
goods
angular resolution
gases
Hubble Space Telescope
gas
merger
bursts
near infrared
extinction
estimating
physical property

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • cosmology: observations
  • galaxies: evolution
  • galaxies: formation
  • galaxies: high-redshift
  • galaxies: photometry

Cite this

Wiklind, T., Conselice, C. J., Dahlen, T., Dickinson, M. E., Ferguson, H. C., Grogin, N. A., ... Targett, T. (2014). Properties of submillimeter galaxies in the candels goods-south field. Astrophysical Journal, 785(2), [111]. https://doi.org/10.1088/0004-637X/785/2/111
Wiklind, Tommy ; Conselice, Christopher J. ; Dahlen, Tomas ; Dickinson, Mark E. ; Ferguson, Henry C. ; Grogin, Norman A. ; Guo, Yicheng ; Koekemoer, Anton M. ; Mobasher, Bahram ; Mortlock, Alice ; Fontana, Adriano ; Davé, Romeel ; Yan, Haojing ; Acquaviva, Viviana ; Ashby, Matthew L.N. ; Barro, Guillermo ; Caputi, Karina I. ; Castellano, Marco ; Dekel, Avishai ; Donley, Jennifer L. ; Fazio, Giovanni G. ; Giavalisco, Mauro ; Grazian, Andrea ; Hathi, Nimish P. ; Kurczynski, Peter ; Lu, Yu ; McGrath, Elizabeth J. ; De Mello, Duilia F. ; Peth, Michael ; Safarzadeh, Mohammad ; Stefanon, Mauro ; Targett, Thomas. / Properties of submillimeter galaxies in the candels goods-south field. In: Astrophysical Journal. 2014 ; Vol. 785, No. 2.
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abstract = "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⊙.",
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author = "Tommy Wiklind and Conselice, {Christopher J.} and Tomas Dahlen and Dickinson, {Mark E.} and Ferguson, {Henry C.} and Grogin, {Norman A.} and Yicheng Guo and Koekemoer, {Anton M.} and Bahram Mobasher and Alice Mortlock and Adriano Fontana and Romeel Dav{\'e} and Haojing Yan and Viviana Acquaviva and Ashby, {Matthew L.N.} and Guillermo Barro and Caputi, {Karina I.} and Marco Castellano and Avishai Dekel and Donley, {Jennifer L.} and Fazio, {Giovanni G.} and Mauro Giavalisco and Andrea Grazian and Hathi, {Nimish P.} and Peter Kurczynski and Yu Lu and McGrath, {Elizabeth J.} and {De Mello}, {Duilia F.} and Michael Peth and Mohammad Safarzadeh and Mauro Stefanon and Thomas Targett",
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Wiklind, T, Conselice, CJ, Dahlen, T, Dickinson, ME, Ferguson, HC, Grogin, NA, Guo, Y, Koekemoer, AM, Mobasher, B, Mortlock, A, Fontana, A, Davé, R, Yan, H, Acquaviva, V, Ashby, MLN, Barro, G, Caputi, KI, Castellano, M, Dekel, A, Donley, JL, Fazio, GG, Giavalisco, M, Grazian, A, Hathi, NP, Kurczynski, P, Lu, Y, McGrath, EJ, De Mello, DF, Peth, M, Safarzadeh, M, Stefanon, M & Targett, T 2014, 'Properties of submillimeter galaxies in the candels goods-south field', Astrophysical Journal, vol. 785, no. 2, 111. https://doi.org/10.1088/0004-637X/785/2/111

Properties of submillimeter galaxies in the candels goods-south field. / Wiklind, Tommy; Conselice, Christopher J.; Dahlen, Tomas; Dickinson, Mark E.; Ferguson, Henry C.; Grogin, Norman A.; Guo, Yicheng; Koekemoer, Anton M.; Mobasher, Bahram; Mortlock, Alice; Fontana, Adriano; Davé, Romeel; Yan, Haojing; Acquaviva, Viviana; Ashby, Matthew L.N.; Barro, Guillermo; Caputi, Karina I.; Castellano, Marco; Dekel, Avishai; Donley, Jennifer L.; Fazio, Giovanni G.; Giavalisco, Mauro; Grazian, Andrea; Hathi, Nimish P.; Kurczynski, Peter; Lu, Yu; McGrath, Elizabeth J.; De Mello, Duilia F.; Peth, Michael; Safarzadeh, Mohammad; Stefanon, Mauro; Targett, Thomas.

In: Astrophysical Journal, Vol. 785, No. 2, 111, 20.04.2014.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Properties of submillimeter galaxies in the candels goods-south field

AU - Wiklind, Tommy

AU - Conselice, Christopher J.

AU - Dahlen, Tomas

AU - Dickinson, Mark E.

AU - Ferguson, Henry C.

AU - Grogin, Norman A.

AU - Guo, Yicheng

AU - Koekemoer, Anton M.

AU - Mobasher, Bahram

AU - Mortlock, Alice

AU - Fontana, Adriano

AU - Davé, Romeel

AU - Yan, Haojing

AU - Acquaviva, Viviana

AU - Ashby, Matthew L.N.

AU - Barro, Guillermo

AU - Caputi, Karina I.

AU - Castellano, Marco

AU - Dekel, Avishai

AU - Donley, Jennifer L.

AU - Fazio, Giovanni G.

AU - Giavalisco, Mauro

AU - Grazian, Andrea

AU - Hathi, Nimish P.

AU - Kurczynski, Peter

AU - Lu, Yu

AU - McGrath, Elizabeth J.

AU - De Mello, Duilia F.

AU - Peth, Michael

AU - Safarzadeh, Mohammad

AU - Stefanon, Mauro

AU - Targett, Thomas

PY - 2014/4/20

Y1 - 2014/4/20

N2 - 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⊙.

AB - 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⊙.

KW - cosmology: observations

KW - galaxies: evolution

KW - galaxies: formation

KW - galaxies: high-redshift

KW - galaxies: photometry

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DO - 10.1088/0004-637X/785/2/111

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Wiklind T, Conselice CJ, Dahlen T, Dickinson ME, Ferguson HC, Grogin NA et al. Properties of submillimeter galaxies in the candels goods-south field. Astrophysical Journal. 2014 Apr 20;785(2). 111. https://doi.org/10.1088/0004-637X/785/2/111