observations of ALESS 49.1 and 57.1 (Project \#2013.1.00470.S; PI: J. Hodge) at 0.34-0.67 arcsec resolution, and additional Cycle 4 observations of ALESS 49.1 (Project \#2016.1.00754.S; PI: J. Wardlow) at 1.1-arcsec resolution. The naturally-weighted Band 3 synthesized beam size is 0.69$\times$0.63 arcsec for ALESS 49.1 (after concatenating the Cycles 2 and 4 data) and 0.67$\times$0.60 arcsec for ALESS 57.1, with a continuum $\sigma_{rms}$ of 17.6 and 19.5 $\mu$Jy beam$^{-1}$, respectively. For a detailed description of the data and the resulting analysis, we refer the reader to @CR18.

Results {#sec:Results}
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[@ll|cc @]{} Source & & ALESS 49.1 & ALESS 57.1\
RA (J2000) & & 3:31:24.71 & 3:31:51.94\
DEC (J2000) & & $-$27:50:46.9 & $-$27:53:27.0\
$z\,^a$ & & 2.943$\pm$0.001 & 2.943$\pm$0.002\
Beam FWHM & \[arcsec\] & 0.16$\times$0.12 & 0.16$\times$0.12\
Beam PA & \[deg\] & 53 & 56\

$S_\mathrm{160 \mu m}$ & \[mJy\] & 10.7$\pm$1.0 & 8.2$\pm$0.5\
$I_\mathrm{160 \mu m}^{max}$ & \[mJy beam$^{-1}$\] & 3.42$\pm$0.16 & 1.53$\pm$0.17\
$S_\mathrm{[CII]}\,^b$ & \[mJy\] & 15.4$\pm$2.8 & 8.8$\pm$2.5\
$I^\mathrm{max}_\mathrm{[CII]}\,^b$ & \[mJy beam$^{-1}$\] & 2.0$\pm$0.4 & 3.0$\pm$0.4\
FWHM$_\mathrm{[CII]}$ & \[km s$^{-1}$\] & 600$\pm$130 & 390$\pm$70\
FWHM$_\mathrm{CO}\,^a$ & \[km s$^{-1}$\] & 610$\pm$30 & 360$\pm$90\

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Image analysis {#subsec:imaging}
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### Imaging

We perform synthesis imaging of the visibility 