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Table 2

Source properties and information of the used ALMA observation.

Source Inclination Position angle(a) (o) Distance (pc) FWHM (mas) PA(b) (o) Band Reference
GM Aur 53.21 57.17 159 45 × 25 2.2 6 Huang et al. (2020)
PDS 70 51.7 156.7 112.4 74 × 57 63 7 Keppler et al. (2018)

Notes. (a)The angle between the major axis of the disk to the North.(b)The angle between the major axis of the beam to the North.

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