3 papers
astro-ph.GA2026
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 syste…
astro-ph.GA2025
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…
astro-ph.GA2025
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…