Exploring Variation of Double-peak Broad-line Profile in Strongly Variable AGNs by Jiancheng Wu, Qingwen Wu, Kai-Xing Lu, Xinwu Cao, Xiangli Lei, Mengye Wang, Xiao Fan

“…The high metallicity of Z  ≳ 5 Z _⊙ is required to reproduce the observational anticorrelation between the peak separation of broad lines and the Eddington ratio for a sample of AGNs. …”
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