activity
20222026
most citedSDSS J222428.53+261423.2: unique emission lines properties unveil a sub-kiloparsec dual AGN candidate

9 citations · 11 across the 15 of their papers we have counts for

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astro-ph.GA2026

SDSS J153231.80+420342.7: a triple black hole candidate with a close binary black hole

Qi Zheng, YiWen Jiang, Xue-Guang Zhang +1

We report a triple black hole candidate with a close binary black hole (BBH) in the blue quasar SDSS J153231.80+420342.7 (=SDSS J1532) at a redshift of 0.209. It shows double-peake…

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 system…