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We measured and modeled the spectral energy distributions (SEDs) in 28 bandsfrom the ultraviolet to the far-infrared (FIR) for 31 interacting galaxies in14 systems. The sample is drawn from the Spitzer Interacting Galaxy Survey,which probes a range of galaxy interaction parameters at multiple wavelengthswith an emphasis on the infrared bands. The subset presented in this paperconsists of all galaxies for which FIR Herschel SPIRE observations are publiclyavailable. Our SEDs combine the Herschel photometry with multi-wavelength datafrom Spitzer, GALEX, Swift UVOT, and 2MASS. While the shapes of the SEDs arebroadly similar across our sample, strongly interacting galaxies typically havemore mid-infrared emission relative to their near-infrared and FIR emissionthan weakly or moderately interacting galaxies. We modeled the full SEDs toderive host galaxy star formation rates (SFR), specific star formation rates(sSFR), stellar masses, dust temperatures, dust luminosities, and dust masses.We find increases in the dust luminosity and mass, SFR, and cold (15-25 K) dusttemperature as the interaction progresses from moderately to stronglyinteracting and between non- interacting and strongly interacting galaxies. Wealso find increases in the SFR between weakly and strongly interactinggalaxies. In contrast, the sSFR remains unchanged across all the interactionstages. The SFR derived from the SED modeling agrees well with rates estimatedby proportionality relations that depend on infrared emission. (abridged)

Global Star Formation Rates and Dust Emission Over the Galaxy Interaction Sequence