The HI Mosaic of the Large Magellanic Cloud

Details The HI Mosaic of the Large Magellanic Cloud The HI Mosaic of the Large Magellanic Cloud

Dec 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996jkass..29...95k&link_type=abstract

Journal of the Korean Astronomical Society, v. 29 Supplement, p.S95

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Magellanic Clouds: Neutral Hydrogen

Scientific paper

The authors present the recent results of an H I aperture synthesis mosaic of the Large Magellanic Cloud, made by combining data from 1344 separate pointing centers using the Australia Telescope Compact Array (ATCA). The resolution of the mosaiced images is 1′<83>0 (15 pc, using a distance to the LMC of 50 kpc). In contrast with its appearance at other wavelengths, the LMC is remarkably symmetric in H I on the largest scales, with the bulk of the H I residing in a disk of diameter 7.3 kpc. Outer spiral structure is clearly seen, though the features appear due to differential rotation, therefore transient in nature. A good correlation is seen between the supershells previously identified in Hα and H I structures.

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