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Estimating Black Hole Masses of AGNs using Ultraviolet Emission Line Properties

Wang, Ran; Wu, Xue-Bing; Kong, Min-Zhi +1 more

Based on measured broad line region sizes in the reverberation-mapping AGN sample, two new empirical relations are introduced to estimate the central black hole masses of radio-loud high-redshift (z>0.5) AGNs. First, using the archival IUE/HST spectroscopy data at UV band for the reverberation-mapping objects, we obtained two new empirical rela…