72 citations · 410 across the 20 of their papers we have counts for
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On Variation of Light Curves and Broad Emission Lines for Periodic QSOs from co-rotating Supermassive binary black holes in elliptical orbits
Junqiang Ge, Youjun Lu, Changshuo Yan +1
Context. Periodic QSOs are considered as candidates of supermassive binary black hole (BBH) systems in galactic centers. Further confirmation of these candidates may require differ…
Variations of Broad Emission Lines from periodicity QSOs under the interpretation of supermassive binary black holes with misaligned circumbinary broad line regions
Xiang Ji, Junqiang Ge, Youjun Lu +1
Quasars with periodic light curves are considered as candidates of supermassive binary black hole (BBH) systems. One way for further confirmations may be searching for other charac…
Variation of Broad Emission Lines from QSOs with Optical/UV Periodicity to Test the Interpretation of Supermassive Binary Black Holes
Xiang Ji, Youjun Lu, Junqiang Ge +2
Periodic quasars have been suggested to host supermassive binary black holes (BBHs) in their centers, and their optical/UV periodicities are interpreted as caused by either the Dop…
Broad-line region configuration of the supermassive binary black hole candidate PG1302-102 in the relativistic Doppler boosting scenario
Zihao Song, Junqiang Ge, Youjun Lu +2
PG1302-102 is thought to be a supermassive binary black hole (BBH) system according to the periodical variations of its optical and UV photometry, which may be interpreted as being…
On using inspiralling supermassive binary black holes in the PTA frequency band as standard sirens to constrain dark energy
Changshuo Yan, Wen Zhao, Youjun Lu
Supermassive binary black holes (SMBBHs) in galactic centers may radiate gravitational wave (GW) in the nano-Hertz frequency band, which are expected to be detected by pulsar timin…
Star formation in self-gravitating disks in active galactic nuclei. I. Metallicity gradients in broad line regions
J. -M. Wang, J. -Q. Ge, C. Hu +6
It has been suggested that the high metallicity generally observed in active galactic nuclei (AGNs) and quasars originates from ongoing star formation in the self-gravitating part…
Episodic Random Accretion and the Cosmological Evolution of Supermassive Black Hole Spins
J. -M. Wang, C. Hu, Y. -R. Li +7
The growth of supermassive black holes (BHs) located at the centers of their host galaxies comes mainly from accretion of gas, but how to fuel them remains an outstanding unsolved…
The starburst-AGN connection: the role of young stellar populations in fueling supermassive black holes
Y. -M. Chen, J. -M. Wang, C. -S. Yan +2
Tracing the star formation history in circumnuclear regions (CNRs) is a key step towards understanding the starburst-AGN connection. However, bright nuclei outshining the entire ho…