4 papers
Characterizing the origins of gamma-ray variability of the jetted active galactic nuclei observed with the Fermi-LAT
Yongyun Chen, Qiusheng Gu, Junhui Fan +5
We conducted an analysis of gamma-ray variability in a large sample of jetted active galactic nuclei (AGNs) by utilizing archival Fermi-LAT light curves and applying damped random…
The cold molecular gas regulates the activity of active galactic nuclei in massive galaxies
Yongyun Chen, Qiusheng Gu, Luis. C Ho +8
The physical quantities that directly regulate AGN feedback in massive galaxies remain poorly understood. Observations of molecular gas surrounding AGNs suggest that this gas serve…
The relation between the optical variability timescale, magnetic field of jets and black hole spin in active galactic nuclei
Yongyun Chen, Qiusheng Gu, Junhui Fan +5
We investigate the relationship among the jet magnetic field, black hole spin, black hole mass, Eddington ratio, and optical variability timescales in jetted active galactic nuclei…
Observational evidence for a correlation between the magnetic field of jets and star formation rate in host galaxies
Yongyun Chen, Qiusheng Gu, Junhui Fan +4
Accretion supermassive black holes in the center of active galaxies usually produce ``jets''-collimated bipolar outflows of relativistic particles. Magnetic fields near the black h…