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8th of December 2021
GASKAP Pilot Survey observations of the SMC
by Pingel et al.
Pingel et al. report present the most sensitive and detailed view of the neutral hydrogen (HI) emission associated with the Small Magellanic Cloud (SMC), through the combination of data from the Australian Square Kilometre Array Pathfinder (ASKAP) and the Parkes 64m (Murriyang), as part of the Galactic Australian Square Kilometre Array Pathfinder (GASKAP) pilot survey. These GASKAP-HI pilot observations, for the first time, reveal HI in the SMC on similar physical scales as other important tracers of the interstellar medium, such as molecular gas and dust.

The figure above shows single spectral channel centered on 151.3 km s−1 from the new GASKAP-HI (ASKAP+Parkes) HI image. The white rectangle outlines the Bar region of the SMC and the white arrow points to resolved H i plumes in the Wing region. The abundance of small-scale HI features in the Bar of the SMC, extending from the north to the south-west and outlined by the white rectangle, trace the stellar feedback effects from the strong ongoing star formation in this region. The detail in small-scale features in a single spectral channel from our new GASKAP-HI data approaches those traced by the far-infrared 250µm dust image produced by the Herschel satellite.

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