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

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 {sub *} ≅ 10{sup 11} M {sub ☉}: 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 × 10{sup 10} M {sub ☉} at both z = 2 and 0.9 down tomore » ∼2 × 10{sup 9} M {sub ☉} at z = 0.4. The infrared-luminous sample at z = 2 shows a further ∼4 times increase in M {sub 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).« less
Authors:
;  [1] ;  [2] ; ;  [3] ;  [4] ;  [5] ;  [6] ;  [7] ;  [8] ;  [9] ;  [10] ;  [11]
  1. California Institute of Technology, MC 249-17, 1200 East California Boulevard, Pasadena, CA 91125 (United States)
  2. AIM Unité Mixte de Recherche CEA CNRS, Université Paris VII UMR n158, F-75014 Paris (France)
  3. North American ALMA Science Center, National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA 22901 (United States)
  4. Institute for Astronomy, 2680 Woodlawn Drive, University of Hawaii, Honolulu, HI 96822 (United States)
  5. UK Astronomy Technology Centre, Science and Technology Facilities Council, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ (United Kingdom)
  6. Department of Astronomy, University of Massachusetts, Amherst, MA 01003 (United States)
  7. Spitzer Science Center, MS 314-6, California Institute of Technology, Pasadena, CA 91125 (United States)
  8. National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA 22901 (United States)
  9. National Optical Astronomy Observatory, 950 North Cherry Avenue, Tucson, AZ 85719 (United States)
  10. Department of Astronomy and Steward Observatory, University of Arizona, Tucson, AZ 85721 (United States)
  11. Institute for Astronomy, ETH Zurich, Wolfgang-Pauli-strasse 27, CH-8093 Zurich (Switzerland)
Publication Date:
OSTI Identifier:
22351590
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal; Journal Volume: 783; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; CALIBRATION; COMPARATIVE EVALUATIONS; DUSTS; EMISSION; EVOLUTION; GHZ RANGE; IMAGES; INTERSTELLAR SPACE; MASS; MILKY WAY; RED SHIFT; STARS; UNIVERSE