An H I Aperture Mosaic Survey of the Large Magellanic Cloud

We present results from an H I aperture synthesis mosaic of the Large Magellanic Cloud (LMC), made by combining data from 1344 separate pointing centers using the Australia Telescope Compact Array (ATCA). The mosaiced images have a spatial resolution of 1.0', 15 pc (using a distance to the LMC of 50 kpc). We have also undertaken a widefield H-alpha survey with the 2.3 m imager mounted on the 16 inch telescope at Siding Spring Observatory in the same region. These narrow-band H-alpha images have comparable coverage and spatial resolution to the ATCA mosaic. These two surveys offer a unique probe of the detailed relationship between the ionised phase and atomic phase in the gas of the star-forming galaxies.