協辦單位
NQU
協辦單位
Kinmen/edu
協辦單位
ASIAA
贊助單位
MOST
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名稱Title
2018天文年會
國立金門大學
5月18日至20日

論文摘要

ALMA Dust Polarization Observations of Nearly Edge-On Protostellar disks

[ Oral ]

Chin-Fei Lee (ASIAA)

Polarized emission is detected in two young nearly edge-on protostellar disks in 343 GHz continuum at ~50 au resolution with Atacama Large Millimeter/submillimeter Array. In both disks, the polarization orientations in the nearside are almost perpendicular to the disk major axis, suggesting a presence of toroidal field around the outer edges of the disks. In the more resolved disk, the farside of the disk is also seen, the polarization orientations there are bended around the jet axis. These orientations, when rotated by 90 degree, become parallel to the jet axis and thus may suggest a presence of poloidal field in the disk. I will discuss these results in the talk.