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An ALMA/NOEMA surve...
An ALMA/NOEMA survey of the molecular gas properties of high-redshift star-forming galaxies
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- Birkin, Jack E. (author)
- Durham University
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- Weiss, Axel (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Wardlow, J. L. (author)
- Lancaster University
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- Smail, Ian (author)
- Durham University
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- Swinbank, A. M. (author)
- Durham University
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- Dudzeviciute, U. (author)
- Durham University
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- An, Fang Xia (author)
- University of the Western Cape
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- Ao, Y. (author)
- University of Science and Technology of China,Chinese Academy of Sciences
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- Chapman, S. C. (author)
- Dalhousie University
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- Chen, Chian Chou (author)
- Academia Sinica Taiwan
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- da Cunha, E. (author)
- University of Western Australia
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- Dannerbauer, H. (author)
- Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Gullberg, Bitten, 1988 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Hodge, J. A. (author)
- Universiteit Leiden (UL),Leiden University (UL)
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- Ikarashi, S. (author)
- Durham University
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- Ivison, R. J. (author)
- European Southern Observatory (ESO)
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- Matsuda, Y. (author)
- The Graduate University for Advanced Studies (SOKENDAI),National Astronomical Observatory of Japan
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- Stach, S. M. (author)
- Durham University
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- Walter, F. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Wang, W. H. (author)
- Academia Sinica Taiwan
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- van der Werf, P. (author)
- Universiteit Leiden (UL),Leiden University (UL)
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Durham University Max Planck Gesellschaft zur Förderung der Wissenschaften eV. (MPG) (creator_code:org_t)
- 2020-12-17
- 2021
- English.
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In: Monthly Notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 501:3, s. 3926-3950
- Related links:
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https://doi.org/10.1...
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Abstract
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- We have used ALMA and NOEMA to study the molecular gas reservoirs in 61 ALMA-identified submillimetre galaxies (SMGs) in the COSMOS, UDS, and ECDFS fields. We detect 12CO (Jup = 2-5) emission lines in 50 sources, and [C I](3P1 -3P0) emission in eight, at z = 1.2-4.8 and with a median redshift of 2.9±0.2. By supplementing our data with literature sources, we construct a statistical CO spectral line energy distribution and find that the 12CO line luminosities in SMGs peak at Jup ∼ 6, consistent with similar studies. We also test the correlations of the CO, [C I], and dust as tracers of the gas mass, finding the three to correlate well, although the CO and dust mass as estimated from the 3-mm continuum are preferable. We estimate that SMGs lie mostly on or just above the star-forming main sequence, with a median gas depletion timescale, tdep = Mgas/SFR, of 210±40 Myr for our sample. Additionally, tdep declines with redshift across z ∼ 1-5, while the molecular gas fraction, μgas = Mgas/M*, increases across the same redshift range. Finally, we demonstrate that the distribution of total baryonic mass and dynamical line width, Mbaryon-σ, for our SMGs is consistent with that followed by early-type galaxies in the Coma cluster, providing strong support to the suggestion that SMGs are progenitors of massive local spheroidal galaxies. On the basis of this, we suggest that the SMG populations above and below an 870-μm flux limit of S870 ∼ 5mJy may correspond to the division between slow and fast rotators seen in local early-type galaxies.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Matematik -- Sannolikhetsteori och statistik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Probability Theory and Statistics (hsv//eng)
Keyword
- galaxies: Star formation
- submillimetre: Galaxies
- galaxies: Evolution
Publication and Content Type
- art (subject category)
- ref (subject category)
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To the university's database
- By the author/editor
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Birkin, Jack E.
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Weiss, Axel
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Wardlow, J. L.
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Smail, Ian
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Swinbank, A. M.
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Dudzeviciute, U.
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show more...
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An, Fang Xia
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Ao, Y.
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Chapman, S. C.
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Chen, Chian Chou
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da Cunha, E.
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Dannerbauer, H.
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Gullberg, Bitten ...
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Hodge, J. A.
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Ikarashi, S.
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Ivison, R. J.
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Matsuda, Y.
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Stach, S. M.
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Walter, F.
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Wang, W. H.
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van der Werf, P.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Subatomic Physic ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Mathematics
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and Probability Theo ...
- Articles in the publication
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Monthly Notices ...
- By the university
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Chalmers University of Technology