HAWC+ Observations of OMC-1

Wednesday, May 08, 2019 - 9:00am PDT
David Chuss
Villanova University
Event Type: 

Far-Infrared polarimetry is a useful tool for exploring the role of magnetic fields in star formation. The HAWC+/SOFIA polarimeter provides a major leap forward in observing capability from previous FIR polarimeters. HAWC+ has mapped OMC-1 in all four bands both photometrically and polarimetrically. In this talk, I will review the results of the HAWC+ Science Team’s publication on these data.  We provide improved maps for SED fit parameters of the region, including column density and temperature. We present new maps of the magnetic field geometry in all four bands and estimate the magnetic field strength using the Davis-Chandrasekhar-Fermi technique. We find that there is no evidence for decreased grain alignment in the cores of the cloud complex.  We also find that the field geometry of the magnetic field matches the symmetry of the BN/KL explosion.

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