Oral Presentation
Magnetic Fields within a Rotating Toroids in the massive core G10.62–0.38
Presenter: Jia-Wei Wang (ASIAA)
Recently, spiral-like magnetic fields on disk-scales have been observed in a number of massive star-forming cores, suggesting that massive stars can be formed in a weak magnetic field environment. In this talk, I will report the ALMA continuum polarization observations toward an edge-on rotating toroid around a hot massive core G10.62–0.38, as part of the Magnetic fields in massive star-forming Regions (MagMaR) survey. Our continuum image clearly shows a flat structure, with uniform velocity gradient indicating its rotating motion. The observed magnetic fields reveal a poloidal-like morphology in the outer area, channeling the accreting streamers, while the toroidal component is more important in the inner area, possibly coupled with the rotational motion. Ours results reveal how magnetic field morphology evolves with gas kinematics.
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