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We examine far-infrared and submillimeter spectral energy distributions forgalaxies in the Infrared Space Observatory Atlas of Bright Spiral Galaxies. Forthe 71 galaxies where we had complete 60-180 micron data, we fit blackbodieswith lambda^-1 emissivities and average temperatures of 31 K or lambda^-2emissivities and average temperatures of 22 K. Except for high temperaturesdetermined in some early-type galaxies, the temperatures show no dependence onany galaxy characteristic. For the 60-850 micron range in eight galaxies, wefit blackbodies with lambda^-1, lambda-2, and lambda^-beta (with beta variable)emissivities to the data. The best results were with the lambda^-betaemissivities, where the temperatures were ~30 K and the emissivity coefficientbeta ranged from 0.9 to 1.9. These results produced gas to dust ratios thatranged from 150 to 580, which were consistent with the ratio for the Milky Wayand which exhibited relatively little dispersion compared to fits with fixedemissivities.Comment: AJ, 2003, in pres

Dust Temperatures in theInfrared Space ObservatoryAtlas of Bright Spiral Galaxies