The Narrowband Ultraviolet Imaging Experiment for Wide-Field Surveys. I. Dust-scattered Continuum

摘要

We report on the first results of NUVIEWS, a sounding rocket experiment designed to map the far-UV background in four narrow UV bands. This is the first imaging measurement of the UV background to cover a substantial fraction of the sky. In our first flight, we mapped one-quarter of the sky with ～5'10' imaging resolution. We present a map of the continuum background obtained in the 1740 A telescope and use a model based upon the multiple scattering approach of Witt, Friedman, & Sasseen and a three-dimensional stellar dis- tribution to constrain the dust and other parameters.