Abstract
Abstract
We analyze the dust properties of 57 870 μm-selected dusty star-forming galaxies in GOODS-S using new deep Atacama Large Millimeter/Submillimeter Array 1.2, 2, and 3 mm continuum imaging together with other far-infrared through millimeter data. We fit the spectral energy distributions (SEDs) with optically thin modified blackbodies to constrain the emissivity indices and effective dust temperatures, finding a median emissivity index of
β
=
1.78
−
0.25
+
0.43
and a median temperature of
T
d
=
33.6
−
5.4
+
12.1
K. We observe a negative correlation between β and T
d
. By testing several SED models, we determine that the derived emissivity indices can be influenced by opacity assumptions. Our temperature measurements are consistent with no evolution in dust temperature with redshift.
Funder
National Aeronautics and Space Administration
Centro de Astrofísica y Tecnologías Afines
ANID ∣ Fondo Nacional de Desarrollo Científico y Tecnológico
Publisher
American Astronomical Society
Subject
Space and Planetary Science,Astronomy and Astrophysics
Cited by
7 articles.
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