Stuart D. Ryder , Wilfred Walsh , David Malin, PASA, 16 (1), in press.
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Future Work
Because the HI in NGC 6744 overfills the Parkes beam, measuring the total HI flux requires either an elaborate mapping strategy, or a smaller antenna. However, we are optimistic that with appropriate processing, the multiple HIPASS scans of the environment of NGC 6744 will enable us to extract a total HI flux that will serve to constrain the maximum-entropy deconvolution. We have recently acquired H Fabry-Perot scans of the inner disk of NGC 6744; as the images by Ryder & Dopita (1993) indicate, there is diffuse H emission interior to the ring which should enable us to trace ionised gas motions in the bar region. In addition, we plan to map the CO emission from the inner disk of NGC 6744 with the Swedish-ESO Sub-millimetre Telescope. Together, these complementary observations should enable us to understand the internal kinematics of NGC 6744, just as our ATCA mosaic of the HI has begun to teach us about the large-scale dynamics of the NGC 6744 system.
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