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A Potential Link between Nuclear Winds and Cold Gas Outflows on Kiloparsec Scales in Reionization-era Quasars

  • Authors: Yongda Zhu, Marcia J. Rieke, Luis C. Ho, Yang Sun, George H. Rieke, Feng Yuan, Tom J. L. C. Bakx, George D. Becker, Jinyi Yang, Eduardo Bañados, Manuela Bischetti, Christopher Cain, Xiaohui Fan, Yoshinobu Fudamoto, Seyedazim Hashemi, Ryota Ikeda, Zhiyuan Ji, Xiangyu Jin, Weizhe Liu, Yichen Liu, Jianwei Lyu, Hai-Xia Ma, Tsutomu T. Takeuchi, Hideki Umehata, Feige Wang, Wei Leong Tee

Yongda Zhu et al 2026 The Astrophysical Journal 1000 .

  • Provider: AAS Journals

Caption: Figure 4.

[C II] emission from the stacked image cubes of BAL (left panel) and non-BAL (right panel) quasars. The black curves represent the normalized flux (arbitrary units), while the blue shaded regions show the residual flux after subtracting the narrow component. The gray shaded regions indicate the ±1σ noise level. The fitting parameter uncertainties shown in this plot are derived from a single stack, rather than the bootstrap approach used in Figure 1. When stacking image cubes instead of 1D spectra, the BAL sample still exhibits a significant broad component at 4.48σ, whereas the non-BAL sample remains below the 2σ detection threshold.

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