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Session 76 - Star Formation in Galaxies.
Display session, Friday, January 09
Exhibit Hall,

[76.04] UBVR Imaging of UV Bright Interacting Galaxies

C. H. Nelson, D. Weistrop (UNLV), R. Angione (SDSU), S. Cruzen (CSU), M. E. Kaiser (JHU)

Interacting galaxies are often found to contain UV-bright knots which are the sites of very recent or ongoing star-formation. To investigate the stellar populations of these complexes we have obtained UBVR images of several interacting or morphologically disturbed UV bright galaxies (NGC 3395/6, NGC 3991/4/5, NGC 4194, NGC 6090). Images of IRAS 15179+3956, an interacting galaxy in the Boötes Void, were also obtained. The images were made with the 2048\times 2048 CCD camera on the 1-meter telescope at the Mount Laguna Observatory.

Colors and magnitudes of star-forming regions in these objects will be presented and used to study how their properties change with age and position within each galaxy and how star-formation propogates through the system. This is part of an ongoing study of starburst galaxies that will include STIS (Space Telescope Imaging Spectrograph) longslit spectroscopy of a subset of these galaxies.

Mount Laguna Observatory is operated jointly by San Diego State University and the University of Illinois. This research is supported in part by NASA under contract NAS 5-31231.

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