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The MPIA conference series
at Ringberg Castle
The MPIA conference series
at Ringberg Castle
 
EPoS 2020 Suggested Contribution
ALMA Observations of Magnetic Field Structure in NGC1333 IRAS4A

Shih-Ping Lai
NTHU, Hsinchu, TW
We present a compreheansive picture of the magnetic field structure around the Class 0 source NGC1333 IRAS4A with polarization observations of ALMA at 870μm and 2mm. Our results show that the magnetic field morphology is hour-glass shape at circumbinary scale, but turns into toroidal in the circumbinary co-plane, which is consistent with the theortical expectation for star formation with strong magnetic field.
Caption: The polarization detections toward NGC1333 IRAS4A at 870 μm (black segments) and 2mm (white segments) with highest angular resolution ever reached (~0.08"). The color scale shows the polarization percentage at 870μm. We will present the derived B-field structure in the conference.
Collaborators:
T.-C. Ching, NAOC, CN
C.-L. Ko, NTHU/ASIAA, TW
H.-y. Liu, ASIAA, TW
J.M. Girart, CSIC-IEEC, ES
R. Rao, ASIAA, TW
Key publication

Suggested Session: Magnetic Fields