The evolution of interstellar medium mass probed by dust emission: Alma observations at z = 0.3-2

N. Scoville, H. Aussel, K. Sheth, K. S. Scott, D. Sanders, R. Ivison, A. Pope, P. Capak, P. Vanden Bout, S. Manohar, J. Kartaltepe, Brant E Robertson, S. Lilly

Research output: Contribution to journalArticle

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Abstract

The use of submillimeter dust continuum emission to probe the mass of interstellar dust and gas in galaxies is empirically calibrated using samples of local star-forming galaxies, Planck observations of the Milky Way, and high-redshift submillimeter galaxies. All of these objects suggest a similar calibration, strongly supporting the view that the Rayleigh-Jeans tail of the dust emission can be used as an accurate and very fast probe of the interstellar medium (ISM) in galaxies. We present ALMA Cycle 0 observations of the Band 7 (350 GHz) dust emission in 107 galaxies from z = 0.2 to 2.5. Three samples of galaxies with a total of 101 galaxies were stellar-mass-selected from COSMOS to have M * ≃ 1011 M: 37 at z 0.4, 33 at z 0.9, and 31 at z = 2. A fourth sample with six infrared-luminous galaxies at z = 2 was observed for comparison with the purely mass-selected samples. From the fluxes detected in the stacked images for each sample, we find that the ISM content has decreased by a factor 6 from 1 to 2 × 1010 M at both z = 2 and 0.9 down to 2 × 109 M at z = 0.4. The infrared-luminous sample at z = 2 shows a further 4 times increase in M ISM compared with the equivalent non-infrared-bright sample at the same redshift. The gas mass fractions are 2% ± 0.5%, 12% ± 3%, 14% ± 2%, and 53% ± 3% for the four subsamples (z = 0.4, 0.9, and 2 and infrared-bright galaxies).

Original languageEnglish (US)
Article number84
JournalAstrophysical Journal
Volume783
Issue number2
DOIs
StatePublished - Mar 10 2014

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mass media
dust
galaxies
probe
gas
calibration
probes
stellar mass
gases
continuums
stars
cycles

Keywords

  • dust, extinction
  • evolution
  • galaxies: ISM
  • galaxies: starburst

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Scoville, N., Aussel, H., Sheth, K., Scott, K. S., Sanders, D., Ivison, R., ... Lilly, S. (2014). The evolution of interstellar medium mass probed by dust emission: Alma observations at z = 0.3-2. Astrophysical Journal, 783(2), [84]. https://doi.org/10.1088/0004-637X/783/2/84

The evolution of interstellar medium mass probed by dust emission : Alma observations at z = 0.3-2. / Scoville, N.; Aussel, H.; Sheth, K.; Scott, K. S.; Sanders, D.; Ivison, R.; Pope, A.; Capak, P.; Vanden Bout, P.; Manohar, S.; Kartaltepe, J.; Robertson, Brant E; Lilly, S.

In: Astrophysical Journal, Vol. 783, No. 2, 84, 10.03.2014.

Research output: Contribution to journalArticle

Scoville, N, Aussel, H, Sheth, K, Scott, KS, Sanders, D, Ivison, R, Pope, A, Capak, P, Vanden Bout, P, Manohar, S, Kartaltepe, J, Robertson, BE & Lilly, S 2014, 'The evolution of interstellar medium mass probed by dust emission: Alma observations at z = 0.3-2', Astrophysical Journal, vol. 783, no. 2, 84. https://doi.org/10.1088/0004-637X/783/2/84
Scoville, N. ; Aussel, H. ; Sheth, K. ; Scott, K. S. ; Sanders, D. ; Ivison, R. ; Pope, A. ; Capak, P. ; Vanden Bout, P. ; Manohar, S. ; Kartaltepe, J. ; Robertson, Brant E ; Lilly, S. / The evolution of interstellar medium mass probed by dust emission : Alma observations at z = 0.3-2. In: Astrophysical Journal. 2014 ; Vol. 783, No. 2.
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abstract = "The use of submillimeter dust continuum emission to probe the mass of interstellar dust and gas in galaxies is empirically calibrated using samples of local star-forming galaxies, Planck observations of the Milky Way, and high-redshift submillimeter galaxies. All of these objects suggest a similar calibration, strongly supporting the view that the Rayleigh-Jeans tail of the dust emission can be used as an accurate and very fast probe of the interstellar medium (ISM) in galaxies. We present ALMA Cycle 0 observations of the Band 7 (350 GHz) dust emission in 107 galaxies from z = 0.2 to 2.5. Three samples of galaxies with a total of 101 galaxies were stellar-mass-selected from COSMOS to have M * ≃ 1011 M: 37 at z 0.4, 33 at z 0.9, and 31 at z = 2. A fourth sample with six infrared-luminous galaxies at z = 2 was observed for comparison with the purely mass-selected samples. From the fluxes detected in the stacked images for each sample, we find that the ISM content has decreased by a factor 6 from 1 to 2 × 1010 M at both z = 2 and 0.9 down to 2 × 109 M at z = 0.4. The infrared-luminous sample at z = 2 shows a further 4 times increase in M ISM compared with the equivalent non-infrared-bright sample at the same redshift. The gas mass fractions are 2{\%} ± 0.5{\%}, 12{\%} ± 3{\%}, 14{\%} ± 2{\%}, and 53{\%} ± 3{\%} for the four subsamples (z = 0.4, 0.9, and 2 and infrared-bright galaxies).",
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