6 citations · 6 across the 3 of their papers we have counts for
4 papers
Spectroscopic study of the broad component of [O III]λ5007 profile in type 1 AGNs
Qi Zheng, Yansong Ma, Xueguang Zhang +1
The spectra of type 1 active galactic nuclei (AGNs) often exhibit broad component in [O III]5007, which are typically blue-shifted and associated with strong outflows. We system…
The virial factor of the H Broad-line for NGC 5548 and NGC 4151
Shao-Jun Li, Xiang-Wei Ning, Yan-Song Ma +2
The variability of virial factor is investigated for two active galactic nucleus, NGC 5548 and NGC 4151, which had been previously reverberation mapped (RM) over 20 times in th…
On type 1 active galactic nuclei with double-peaked [O~{\sc iii}]. I. data sample and basic results
Qi Zheng, Yansong Ma, Xueguang Zhang +2
Double-peaked narrow emission lines (DPNELs) might be evidence for the existence of kpc-scale dual AGNs. There are so far large samples of objects with DPNELs in narrow emission li…
The variability of the broad-line Balmer decrement for quasars from the Sloan Digital Sky Survey Reverberation Mapping
Yan-Song Ma, Shao-Jun Li, Chen-Sheng Gu +4
Based on the spectral decomposition through a code of PrepSpec, the light curves (spanning 6.5 years in the observed frame) of the broad-line Balmer decrement, i.e., the flux ratio…