JINGLE, a JCMT legacy survey of dust and gas for galaxy evolution studies: II. SCUBA-2 850 {mu}m data reduction and dust flux density catalogues. (arXiv:1904.10466v1 [astro-ph.GA])
<a href="http://arxiv.org/find/astro-ph/1/au:+Smith_M/0/1/0/all/0/1">Matthew W. L. Smith</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Clark_C/0/1/0/all/0/1">Christopher J. R. Clark</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Looze_I/0/1/0/all/0/1">Ilse De Looze</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Lamperti_I/0/1/0/all/0/1">Isabella Lamperti</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Saintonge_A/0/1/0/all/0/1">Am&#xe9;lie Saintonge</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wilson_C/0/1/0/all/0/1">Christine D. Wilson</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Accurso_G/0/1/0/all/0/1">Gioacchino Accurso</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Brinks_E/0/1/0/all/0/1">Elias Brinks</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bureau_M/0/1/0/all/0/1">Martin Bureau</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Chung_E/0/1/0/all/0/1">Eun Jung Chung</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Cigan_P/0/1/0/all/0/1">Phillip J. Cigan</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Clements_D/0/1/0/all/0/1">David L. Clements</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Dharmawardena_T/0/1/0/all/0/1">Thavisha Dharmawardena</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Fanciullo_L/0/1/0/all/0/1">Lapo Fanciullo</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gao_Y/0/1/0/all/0/1">Yang Gao</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gao_Y/0/1/0/all/0/1">Yu Gao</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gear_W/0/1/0/all/0/1">Walter K. Gear</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gomez_H/0/1/0/all/0/1">Haley L. Gomez</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Greenslade_J/0/1/0/all/0/1">Joshua Greenslade</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hwang_H/0/1/0/all/0/1">Ho Seong Hwang</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kemper_F/0/1/0/all/0/1">Francisca Kemper</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Lee_J/0/1/0/all/0/1">Jong Chul Lee</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Li_C/0/1/0/all/0/1">Cheng Li</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Lin_L/0/1/0/all/0/1">Lihwai Lin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Liu_L/0/1/0/all/0/1">Lijie Liu</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Molnar_D/0/1/0/all/0/1">D&#xe1;niel Cs. Moln&#xe1;r</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Mok_A/0/1/0/all/0/1">Angus Mok</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Pan_H/0/1/0/all/0/1">Hsi-An Pan</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Sargent_M/0/1/0/all/0/1">Mark Sargent</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Scicluna_P/0/1/0/all/0/1">Peter Scicluna</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Smith_C/0/1/0/all/0/1">Connor M. A. Smith</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Urquhart_S/0/1/0/all/0/1">Sheona Urquhart</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Williams_T/0/1/0/all/0/1">Thomas G. Williams</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Xiao_T/0/1/0/all/0/1">Ting Xiao</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Yang_C/0/1/0/all/0/1">Chentao Yang</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Zhu_M/0/1/0/all/0/1">Ming Zhu</a>

We present the SCUBA-2 850 ${mu}m$ 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 ${mu}m$. We provide details
of our SCUBA-2 data reduction pipeline, optimised for slightly extended
sources, and including a calibration model adjusted to match conventions used
in other far-infrared 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 ${mu}m$ maps, statistically
accounting for the contamination by CO(J=3-2) in the 850 ${mu}m$ band. Of our
initial sample of 193 galaxies, 191 are detected at 250 ${mu}m$ with a $geq$
5${sigma}$ significance. In the SCUBA-2 850 ${mu}m$ band we detect 126
galaxies with $geq$ 3${sigma}$ significance. The distribution of the JINGLE
galaxies in far-infrared/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 $(beta)$. Instead, our new 850 ${mu}m$ data suggest
either that a large fraction of our objects require $beta < 1.5$, 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 far-infrared colours to dust temperature and $beta$ 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.

We present the SCUBA-2 850 ${mu}m$ 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 ${mu}m$. We provide details
of our SCUBA-2 data reduction pipeline, optimised for slightly extended
sources, and including a calibration model adjusted to match conventions used
in other far-infrared 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 ${mu}m$ maps, statistically
accounting for the contamination by CO(J=3-2) in the 850 ${mu}m$ band. Of our
initial sample of 193 galaxies, 191 are detected at 250 ${mu}m$ with a $geq$
5${sigma}$ significance. In the SCUBA-2 850 ${mu}m$ band we detect 126
galaxies with $geq$ 3${sigma}$ significance. The distribution of the JINGLE
galaxies in far-infrared/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 $(beta)$. Instead, our new 850 ${mu}m$ data suggest
either that a large fraction of our objects require $beta < 1.5$, 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 far-infrared colours to dust temperature and $beta$ 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.

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