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A Dense Molecular Ringlike Structure in Gaseous CO Depletion Region G34.74−0.12

  • Authors: Shuting Lin, Siyi Feng, Fengwei Xu, Ke Wang, Patricio Sanhueza, Junzhi Wang, Zhi-Yu Zhang, Yichen Zhang, Kaho Morii, Hauyu Baobab Liu, Sheng-Yuan Liu, Lile Wang, Giovanni Sabatini, Hui Li, Willem Baan, Zhi-Kai Zhu, Shanghuo Li

Shuting Lin et al 2025 The Astrophysical Journal Letters 992 .

  • Provider: AAS Journals

Caption: Figure 3.

PV diagrams of HNC (1–0) along four cuts with a P.A. of 0°, 45°, 90°, and 135° (labeled in Figure 1) of the ringlike structure. Contour levels are set at 3σ, 4σ and 5σ, where σ = 0.008 Jy beam−1. The vertical black dashed line marks the center of the ringlike structure, while the horizontal black dashed line indicates the systemic velocity. The gray curve in the PV diagram represents the best-fit result from the spherical expanding shell model.

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