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Session 51 - New Views of the Magellanic Clouds - I.
Oral session, Wednesday, June 12
Historical Society,
We present wide-field far-ultraviolet (FUV: 1300-1800 Åimages of the Large and Small Magellanic Clouds. These data were obtained by the Ultraviolet Imaging Telescope\/ (UIT\/) during the Astro-1 (1990 December 1--10) and Astro-2 (1996 March 2--18) missions; the images provide a nearly complete FUV mosaic of the SMC and contain numerous regions in the LMC, covering a range of stellar densities and current star-formation activity. A total of 94 LMC/Lucke-Hodge (1970, AJ\/, 75, 171) and 77 SMC/Hodge (1985, PASP\/, 97, 530) OB associations are completely or partially included in the observed fields. The FUV data allow us to identify the hottest OB stars more accurately than with optical photometry, and these stars dominate the ionizing flux which can be correlated to the observed H\alpha flux of the associated H\,\sc ii regions. Of the H\,\sc ii regions in the DEM catalog (Davies, Elliott, amp; Meaburn 1976, MNRAS\/, 81, 89), the UIT\/ fields completely or partially include 48 DEM regions in the LMC and 40 DEM in the SMC. We compare the integrated FUV fluxes and luminosity functions of these DEM H\,\sc ii regions with the results from H\alpha measurements (Kennicutt amp; Hodge 1986, ApJ\/, 306, 130).
