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Recent Results from the JCMT BISTRO Survey: The Evolution of Magnetic Fields in Filamentary Structures
Wednesday, March 03, 2021 - 3:30pm PST
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In this talk I will discuss recent results from the James Clerk Maxwell Telescope (JCMT) BISTRO (B-Fields in Star-Forming Region Observations) Survey, which has been using the POL-2 polarimeter to map magnetic fields in the dense structures of Milky Way star-forming regions. I will discuss the insights which these observations give into the transition to magnetically subcritical gas dynamics which takes place in dense filamentary structures within molecular clouds, and the first hints that we are getting about the effects of stellar feedback on magnetic fields in dense star-forming gas. I will present recent BISTRO Survey observations of several nearby molecular clouds including Ophiuchus, Perseus and Orion, discussing commonalities between these regions and the search for a characteristic size or density scale at which magnetic fields lose their dynamic importance in the evolution of a dense filament to gravitational instability.