HST Cycle 9 Mid-UV Program

An HST Survey of the Mid-UV Morphology
of Nearby Galaxies

We conducted a systematic imaging survey of 37 nearby galaxies observed with HST/WFPC2 in the mid-UV F300W filter, centered at 2930Å as well as in the I-band (F814W) filter at 8230Å. Eleven of these galaxies were also imaged in the F255W filter, centered at 2550Å. Our sample is carefully selected to include galaxies of sufficiently small radius and high predicted mid-UV surface brightness to be detectable with WFPC2 in one orbit and covers a wide range of Hubble types and inclinations. The mid-UV (2000-3000Å) spans the gap between ground-based UBVR (IJHK) images, which are available or were acquired for the current study, and far-UV images available from the Astro/UIT missions for 15 galaxies in our sample. The first qualitative results from our study are presented in Windhorst et al. 2002.

Also at these pages:

• Information on the RPS2 planning for the Cycle 9 mid-UV survey.
• A description of some of the early data reduction steps