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ALMA-QUARKS View of W49N: Multipolar Episodic Outflow Associated with the Most Energetic Galactic Water Maser

  • Authors: Yunfan Jiao, Tie Liu, Wenyu Jiao, Fengwei Xu, Qilao Gu, Xindi Tang, Xiaofeng Mai, Qiuyi Luo, Siju Zhang, Paul F. Goldsmith, Chang Won Lee, Guido Garay, Yuhan Yang, Prasanta Gorai, Manuel Merello, Pablo García, Sami Dib, Jihye Hwang, Ariful Hoque, Mika Juvela, Yankun Zhang, Patricio Sanhueza, Jixiang Weng, Kee-Tae Kim, Swagat R. Das, Archana Soam, Tapas Baug, Jianjun Zhou, Leonardo Bronfman, Aiyuan Yang, Lei Zhu

Yunfan Jiao et al 2026 The Astronomical Journal 172 .

  • Provider: AAS Journals

Caption: Figure 4.

Panel (a): wiggle fitting of outflow lobe “Bn”. The color scale shows the integrated intensity within the region selected for fitting, overlaid on the full moment 0 contours. The region near the source was removed to avoid contamination from the compact outflow lobe with high inclination angle. The red star represents source G2a, consistent with that in Figure 1. The black solid line shows the outflow trajectory, and the dashed line represents the precession axis. The position angle of axis and projected half precession length scale are marked in the figure. Panel (b): wiggle fitting of lobe “Rs”.

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