Ultraviolet background radiation and scattered light from Galactic dust

We study the diffuse emission in 13 far-ultraviolet images taken with the FAUST telescope in order to constrain dust-scattering parameters and search for extragalactic diffuse emission. The images cover more than 600 square degrees and sample both high and low galactic latitudes. We compare the far-ultraviolet emission in these regions with 100 mu m emission as measured by the Infrared Astronomical Satellite. We compare these 100 mu m measurements with those from the recent Diffuse Infrared Background Experiment and find that earlier measurements of the Galactic FUV/IR ratio need substantial corrections. We interpret the FUV emission using the Jura model for the light scattered from isolated dust clouds and find values for the dust-scattering parameters in agreement with other studies. Using other analysis techniques, we are unable to constrain or detect significantly an extragalactic component to the diffuse far-ultraviolet emission.