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Supermassive Black Hole and Broad-line Region in NGC 5548: 2023 Reverberation Mapping Results

  • Authors: Wen-Zhe Xi, Kai-Xing Lu, Jin-Ming Bai, Zhang Yue, Weimin Yi, Liang Xu, Sha-Sha Li, Hai-Cheng Feng, Jian-Guo Wang

Wen-Zhe Xi et al 2025 The Astrophysical Journal 995 .

  • Provider: AAS Journals

Caption: Figure 5.

The temporal variations of Hβ and Hγ VRLPs are systematically compared across six observing seasons (2015, 2018, 2019, 2020, 2021, and 2023) using 30 equal-flux velocity bins, with lags below a maximum correlation coefficient of 0.5 excluded. Vertical and horizontal dotted lines indicate the line core at zero velocity and zero time lag, respectively.

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