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J/AJ/136/2083 Cold dust in NGC 6334 450/850um observations (Matthews+, 2008)
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Beginning of ReadMe :J/AJ/136/2083 Clumps in NGC 6334 from 450/850um observations (Matthews+, 2008)
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The distribution and properties of cold dust in NGC 6334.
Matthews H.E., McCutcheon W.H., Kirk H., White G.J., Cohen M.
<Astron. J., 136, 2083-2101 (2008)>
=2008AJ....136.2083M
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ADC_Keywords: Supernova remnants ; Millimetric/submm sources ;
Interstellar medium
Keywords: ISM: clouds - ISM: individual (NGC 6334) - ISM: structure -
radio continuum: ISM - stars: formation - techniques: image processing
Abstract:
NGC 6334 is a galactic star-forming region in Scorpius, heavily
obscured by intervening dust. The region consists of several major
sites of star formation known previously from far-infrared (IR) and
radio-wavelength observations. We present images of NGC 6334 obtained
at wavelengths of 850 and 450um with the Submillimeter Common-User
Bolometric Array at the James Clerk Maxwell Telescope. These data
highlight the distribution of dense cold dust, a particularly striking
feature of which is a narrow ridge of emission passing between most of
the star-forming centers. We use a clump-finding technique to quantify
the distribution of dust emission throughout the region, and we obtain
estimates of the sizes, masses, and temperatures of the clump ensemble
under simple assumptions.
Description:
The principal data reported here were obtained on 1998 June 26 and
July 1 with the bolometer array camera Submillimeter Common-User
Bolometric Array instrument (SCUBA) deployed on the James Clerk
Maxwell Telescope (JCMT). The observations were made simultaneously in
the two primary wavebands, centered at 850 and 450um, in the
chop/scan mapping mode, as was commonly used for SCUBA observations of
extended fields.