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SCUBA observations of NGC 6946

S. Bianchi·J. Davies·P. Alton·M. Gerin·F. Casoli
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Abstract

We present sub-millimetre images of the spiral galaxy NGC 6946 at 450 and 850 um. The observations have been carried out using the scan/map imaging mode of the Sub-millimetre Common User Bolometer Array (SCUBA) at the James Clark Maxwell Telescope (JCMT). The comparison with a 12CO(2-1) line emission map from IRAM and with an U-band image, clearly shows that the 850 um emission is associated with molecular gas and bright star-forming regions, tracing the spiral arms. We place an upper limit of 0.7 for the V-band optical depth of dust associated with a diffuse atomic component.

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S. Bianchi, J. Davies, P. Alton, M. Gerin, F. Casoli. 1999-12-01. SCUBA observations of NGC 6946. https://arxiv.org/abs/astro-ph/9912014

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