AAS 202nd Meeting, May 2003
Session 40 Galaxies
Poster, Wednesday, May 28, 2003, 10:00am-6:45pm, West Exhibit Hall

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[40.14] Submillimeter Imaging of the Spiral Galaxy M51

D.J. Benford (NASA / GSFC), J.G. Staguhn (SSAI / GSFC)

We present preliminary results of an image of the nearby grand design spiral galaxy M51 using the new Submillimeter High Angular Resolution Camera (SHARC-II) at the Caltech Submillimeter Observatory. The image shows the 350\mum thermal continuum emission from dust. Spiral structure is evident, and provides a determination for the dust temperature as a function of galactocentric radius. The SHARC-II camera is operated in a direct-imaging mode, as opposed to the differential (chopped) mode common to other submillimeter camera. An advantage of the direct-imaging mode is that the maps made are not differential, and so faint, large-scale structure is retained.

The author(s) of this abstract have provided an email address for comments about the abstract: Dominic.J.Benford@nasa.gov

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Bulletin of the American Astronomical Society, 35 #3
© 2003. The American Astronomical Soceity.