11 citations · 11 across the 12 of their papers we have counts for
13 papers
Circular polarization effects induced by photon-axion mixing in astrophysical environments
Meng Wang, Nan Ding, Qiusheng Gu +2
Axions and axion-like particles (ALPs) are compelling candidates for dark matter and new physics beyond the Standard Model. Photon-axion mixing in external magnetic fields modifies…
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…
A universal relationship between the variability timescale and black hole mass in black hole jetted and non-jetted accreting systems
Yongyun Chen, Qiusheng Gu, Junhui Fan +4
A long-term variability study spanning a range of black hole mass systems, from microquasars hosting stellar-mass black holes to active galactic nuclei (AGNs) harboring supermassiv…
Identifying Compton-thick AGNs with Machine learning algorithm in Chandra Deep Field-South
Rui Zhang, Xiaotong Guo, Qiusheng Gu +7
Compton-thick active galactic nuclei (CT-AGNs), which are defined by column density , emit feeble X-ray radiation, eve…
The relation between black hole spin, star formation rate, and black hole mass for supermassive black holes
Yongyun Chen, Qiusheng Gu, Junhui Fan +4
Both theoretical models and observational evidence indicate that jets and/or outflows driven by central active supermassive black holes exert a significant feedback effect on the o…
The relation between black hole spin and star formation in massive star-forming galaxies
Yongyun Chen, Qiusheng Gu, Junhui Fan +4
It has always been believed that feedback from active galactic nuclei (AGN) has an important impact on star formation in massive galaxies. Black hole spin is an important physical…
Identifying Compton-thick AGNs in the COSMOS. I. Among X-ray AGNs with Low Photon Counts
Xiaotong Guo, Qiusheng Gu, Guanwen Fang +4
Compton-thick active galactic nuclei (CT-AGNs), characterized by a significant absorption with column densities of , emi…
The relation between black hole spin and molecular gas in massive galaxies
Chen Yongyun, Gu Qiusheng, Fan Junhui +4
Molecular gas is the key probe for the complex interaction between the accretion of black holes and star formation of the host galaxy of active galactic nuclei (AGN). The molecular…
Jets, accretion and spin in supermassive black holes
Yongyun Chen, Qiusheng Gu, Jianghe Yang +5
The theoretical model suggests that relativistic jets of AGN rely on the black hole spin and/or accretion. We study the relationship between jet, accretion, and spin using supermas…
A Minimal Stochastic Variability Model of Blazars in Turbulent Cascade
Nan Ding, Yunyong Tang, Qiusheng Gu +2
In this paper, we propose a novel minimal physical model to elucidate the long-term stochastic variability of blazars. The model is built on the realistic background of magnetized…
General Physical Properties of Fermi blazars
Yongyun Chen, Qiusheng Gu, Junhui Fan +6
We study the general physical properties of Fermi blazars using the Fermi fourth source catalog data (4FGL-DR2). The quasi-simultaneous multiwavelength data of Fermi blazar are fit…
General Physical Properties of Gamma-Ray-emitting Radio Galaxies
Yongyun Chen, Qiusheng Gu, Junhui Fan +4
We study the radio galaxies with known redshift detected by the Fermi satellite after 10 years of data (4FGL-DR2). We use a one-zone leptonic model to fit the quasi-simultaneous mu…
Curvature of the spectral energy distribution, Compton dominance and synchrotron peak frequency in jetted AGNs
Chen Yongyun, Gu Qiusheng, Fan Junhui +4
We collect a large sample with a reliable redshift detected by the Fermi satellite after 10 years of data (4FGL-DR2), including blazars, -ray Narrow-line Seyfert 1 galaxies (…