Published in
American Astronomical Society, Astrophysical Journal, 1(799), p. 81, 2015
DOI: 10.1088/0004-637x/799/1/81
Links
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Tools
The SCUBA-2 Cosmology Legacy Survey : ALMA resolves the rest-frame far-infrared emission of sub-millimeter galaxies.
,
A. M. Swinbank,
O. Almaini ,
A. W. Blain,
M. N. Bremer,
S. C. Chapman,
Chian-Chou Chen ,
C. Conselice,
K. E. K. Coppin,
A. L. R. Danielson,
J. S. Dunlop,
A. C. Edge,
D. Farrah,
J. E. Geach
and other authors.
Full text: Download
Abstract
We present high-resolution (0.''3) Atacama Large Millimeter Array 870 μm imaging of 52 sub-millimeter galaxies (SMGs) in the Ultra Deep Survey field to investigate the size and morphology of the sub-millimeter (sub-mm) emission on 2-10 kpc scales. We derive a median intrinsic angular size of FWHM = 0.''30 ± 0.''04 for the 23 SMGs in the sample detected at a signal-to-noise ratio (S/N) >10. Using the photometric redshifts of the SMGs we show that this corresponds to a median physical half-light diameter of 2.4 ± 0.2 kpc. A stacking analysis of the SMGs detected at S/N