The Far-Ultraviolet Extragalactic Legacy (FUEL) Survey: Hubble Far-UV Images and Catalogs of the Extragalactic Legacy Fields

Abstract We present far-ultraviolet (FUV) images and catalogs from the Hubble Space Telescope (HST) Advanced Camera for Surveys/Solar Blind Channel (ACS/SBC) F150LP (∼1600 Å) of three extragalactic fields: GOODS-S, GOODS-N, and COSMOS. The data comprise 365 orbits of high-resolution imaging of 151 pointings covering an area of 44.7 arcmin 2 to typical depths of FUV ≈ 28.7 AB (3 σ , 0 . ″ 5-diameter aperture). We provide a new model of the spatially varying dark “glow” created from all 365 orbits of data, and we scale and subtract it from all pointings. We provide drizzled image mosaics, weight maps, and exposure time maps matched in coordinates and pixel scale to the Hubble Legacy Fields frame and original COSMOS tiles. Galaxy photometry is measured within isophotes defined with existing deep Hubble F606W or F814W optical filters. We detect 1068 FUV sources and provide catalogs of all optical detections, and we include matched IDs to existing 3D-HST and CANDELS catalogs. The redshift distribution of FUV-detected galaxies peaks at z ∼ 0.6 and falls until z = 1.2, where the Lyman limit shifts redward of any filter transmission. These data fill the redshift gap of high-resolution FUV imaging between z ∼ 0 and z > 1, allowing for studies of star-forming regions, dust properties, the FUV extragalactic background, and Lyman continuum emission from z > 1.2 galaxies.