SOFIA/HAWC+ 214 µm emission of the Ring

SOFIA/HAWC+ 214 µm emission of the Ring (M0.8-0.2), overlaid with the magnetic field directions (white pseudovectors). The white “+” shows the location of a point source that may be responsible for driving the expansion. Red contours show the 3mm (90 GHz) MGPS data at 10 sigma, 15 sigma, 20 sigma levels (0.5 mJy/beam). The magnetic field geometry is suggestive of a field that is compressed by the expansion of a shell of material. This expansion/compression interpretation implied by the magnetic field measurements is consistent with molecular gas kinematics (e.g., Mills & Battersby 2017).

Additional Information