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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
JINGLE, a JCMT legacy survey of dust and gas for galaxy evolution studies: II. SCUBA-2 850 μm data reduction and dust flux density catalogues
Monthly Notices of the Royal Astronomical Society, Volume 486, No. 3, Year 2019
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Description
We present the SCUBA-2 850μ m component of JINGLE, the new JCMT large survey for dust and gas in nearby galaxies, which with 193 galaxies is the largest targeted survey of nearby galaxies at 850 μ m. We provide details of our SCUBA-2 data reduction pipeline, optimized for slightly extended sources, and including a calibration model adjusted to match conventions used in other far-infrared (FIR) data. We measure total integrated fluxes for the entire JINGLE sample in 10 infrared/submillimetre bands, including all WISE, Herschel-PACS, Herschel-SPIRE, and SCUBA-2 850 μ m maps, statistically accounting for the contamination by CO(J = 3-2) in the 850 μ m band. Of our initial sample of 193 galaxies, 191 are detected at 250 μ m with a ≥5σ significance. In the SCUBA-2 850 μ m band we detect 126 galaxies with ≥3σ significance. The distribution of the JINGLE galaxies in FIR/sub-millimetre colour-colour plots reveals that the sample is not well fit by single modified-blackbody models that assume a single dust-emissivity index (β). Instead, our new 850 μ m data suggest either that a large fraction of our objects require β < 1.5, or that a model allowing for an excess of sub-mm emission (e.g. a broken dust emissivity law, or a very cold dust component ≤10 K) is required. We provide relations to convert FIR colours to dust temperature and β for JINGLE-like galaxies. For JINGLE the FIR colours correlate more strongly with star-formation rate surface-density rather than the stellar surface-density, suggesting heating of dust is greater due to younger rather than older stellar-populations, consistent with the low proportion of early-type galaxies in the sample. © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society.
Authors & Co-Authors
Smith, Matthew W.L.
United Kingdom, Cardiff
Cardiff University
Clark, Christopher J.R.
United Kingdom, Cardiff
Cardiff University
United States, Baltimore
Space Telescope Science Institute
de Looze, Ilse
United Kingdom, London
University College London
Belgium, Ghent
Universiteit Gent
Lamperti, Isabella
United Kingdom, London
University College London
Saintonge, Amélie
United Kingdom, London
University College London
Wilson, Christine D.
Canada, Hamilton
Mcmaster University
Accurso, Gioacchino
United Kingdom, London
University College London
Brinks, Elias
United Kingdom, Hatfield
University of Hertfordshire
Bureau, Martin
United Kingdom, Oxford
University of Oxford
South Korea, Seoul
Yonsei University
Chung, Eun Jung
South Korea, Daejeon
Korea Astronomy and Space Science Institute
Cigan, Phil J.
United Kingdom, Cardiff
Cardiff University
Clements, David L.
United Kingdom, London
Imperial College London
Dharmawardena, Thavisha E.
Taiwan, Nankang
Academia Sinica Taiwan
Taiwan, Taoyuan
National Central University
Fanciullo, Lapo
Taiwan, Nankang
Academia Sinica Taiwan
Gao, Yu
China, Beijing
Chinese Academy of Sciences
Gear, Walter K.P.
United Kingdom, Cardiff
Cardiff University
Gomez, Haley L.
United Kingdom, Cardiff
Cardiff University
Greenslade, Joshua
United Kingdom, London
Imperial College London
Hwang, Ho-seong
South Korea, Daejeon
Korea Astronomy and Space Science Institute
South Korea, Seoul
Korea Institute for Advanced Study
Kemper, F.
Taiwan, Nankang
Academia Sinica Taiwan
Germany, Garching Bei Munchen
European Southern Observatory
Li, Cheng
China, Beijing
Tsinghua University
Lin, Lihwai
Taiwan, Nankang
Academia Sinica Taiwan
Liu, Lijie
United Kingdom, Oxford
University of Oxford
Molnár, Dániel Cs
United Kingdom, Brighton
University of Sussex
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Pan, Hsi An
Taiwan, Nankang
Academia Sinica Taiwan
Sargent, Mark T.
United Kingdom, Brighton
University of Sussex
Urquhart, Sheona A.
United Kingdom, Milton Keynes
The Open University
Williams, Thomas G.
United Kingdom, Cardiff
Cardiff University
Xiao, Ting
China, Shanghai
Shanghai Astronomical Observatory Chinese Academy of Sciences
Yang, Chentao
China, Beijing
Chinese Academy of Sciences
Chile, Santiago
European Southern Observatory Santiago
Zhu, Ming
China, Beijing
National Astronomical Observatories Chinese Academy of Sciences
Statistics
Citations: 14
Authors: 31
Affiliations: 23
Identifiers
Doi:
10.1093/mnras/stz1102
ISSN:
00358711
Research Areas
Environmental
Study Design
Cross Sectional Study
Study Approach
Quantitative