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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
S2CoSMoS: Evolution of gas mass with redshift using dust emission
Monthly Notices of the Royal Astronomical Society, Volume 494, No. 1, Year 2020
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Description
We investigate the evolution of the gas mass fraction for galaxies in the COSMOS field using submillimetre emission from dust at 850 μm. We use stacking methodologies on the 850 μm S2COSMOS map to derive the gas mass fraction of galaxies out to high redshifts, 0 ≤ z ≤ 5, for galaxies with stellar masses of 109.5 < M∗(M☉) < 1011.75. In comparison to previous literature studies we extend to higher redshifts, include more normal star-forming galaxies (on the main sequence), and also investigate the evolution of the gas mass fraction split by star-forming and passive galaxy populations. We find our stacking results broadly agree with scaling relations in the literature. We find tentative evidence for a peak in the gas mass fraction of galaxies at around z ∼ 2.5-3, just before the peak of the star formation history of the Universe. We find that passive galaxies are particularly devoid of gas, compared to the star-forming population. We find that even at high redshifts, high stellar mass galaxies still contain significant amounts of gas. © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society
Authors & Co-Authors
Eales, Stephen A.
United Kingdom, Cardiff
Cardiff University
Smith, Matthew W.L.
United Kingdom, Cardiff
Cardiff University
Gomez, Haley L.
United Kingdom, Cardiff
Cardiff University
MaŁek, Katarzyna E.
France, Paris
Cnes Centre National D'etudes Spatiales
Poland, Warsaw
National Centre for Nuclear Research Ncbj
Simpson, James M.
Taiwan, Taipei
Academia Sinica, Institute of Astronomy and Astrophysics
Peng, Yingjie
China, Beijing
Peking University
Sawicki, Marcin J.
Canada, Halifax
Saint Mary's University
Bunker, Andrew J.
United Kingdom, Oxford
University of Oxford
Ao, Yiping
China, Beijing
Chinese Academy of Sciences
Babul, Arif
Canada, Victoria
University of Victoria
Ho, Luis C.
China, Beijing
Peking University
Hwang, Ho-seong
South Korea, Daejeon
Korea Astronomy and Space Science Institute
Michałowski, Michał J.
Poland, Poznan
Uniwersytet Im. Adama Mickiewicza w Poznaniu
Scoville, Nicholas Z.
United States, Pasadena
California Institute of Technology
Shim, Hyunjin
South Korea, Daegu
Kyungpook National University
Toba, Yoshiki
Japan, Kyoto
Kyoto University
Taiwan, Taipei
Academia Sinica, Institute of Astronomy and Astrophysics
Japan, Matsuyama
Ehime University
Statistics
Citations: 10
Authors: 16
Affiliations: 15
Identifiers
Doi:
10.1093/mnras/staa609
ISSN:
00358711
Research Areas
Environmental
Study Design
Cross Sectional Study