| 17th of August 2017 |
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| Messier 83 - the Southern Pinwheel Galaxy |
| by Juan Madrid (CASS) |
| Messier 83 is perhaps one of the most
beautiful galaxies for which ASKAP has obtained Early Science Data. M83 is
known as the Southern Pinwheel Galaxy for its striking spiral arms. The
above image was made combining ASKAP radio (green),
HST optical (red) and GALEX
ultraviolet (blue) data. The ASKAP data traces the spiral arms of
M83 remarkably well. The radio data shows that the spiral arms extend
beyond the outer most edges of the optical and ultraviolet emission.
The ASKAP data was obtained as part of the WALLABY Early Science on
December 31st 2016 using 10 antennas and a bandwidth of 192 MHz centered
at 1344.5 MHz. The ASKAP image was processed running ASKAPSoft at the
Pawsey Centre. Image Credit: Juan Madrid, Karen Lee-Waddell and the WALLABY data processing team |