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Abstract:
High spatial resolution observations of the diffuse atomic (HI) gas
have led to the realisation that the HI filamentary structures in the
solar neighbourhood are aligned with the ambient magnetic field. It
remains unclear whether this is a general attribute of the ISM across
a large Galactic volume, as well as in other galaxies with vastly
different astrophysical characteristics. Using the high quality data
from the Australian Square Kilometre Array Pathfinder (ASKAP) radio
telescope for the Galactic ASKAP HI (GASKAP-HI) survey, I investigated
whether the ~10 pc-scale HI filaments in the Small Magellanic Cloud
(SMC) can act as compass needles tracing the galactic magnetic field
structure. Furthermore, I mapped the preferred orientation of these
filamentary HI structures to reveal the astrophysical processes
shaping the ISM in the SMC. In this talk, I will present the results
from this work, as well as highlighting the potential synergies
between the GASKAP-HI and the POSSUM surveys.
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