37 citations · 138 across the 33 of their papers we have counts for
24 papers · 1 filter
Jet Power, Bulk Lorentz Factor, Black Hole Spin, and Magnetic Field of Accretion Disk in Jetted Active Galactic Nuclei: A Large Gamma-Ray Emission Sample
Dingrong Xiong, Junhui Fan, Feng Yuan +14
We present a catalog of physical parameters for powerful jet-accretion disk-black hole systems in one of the largest samples of gamma-ray emitting jetted active galactic nuclei (AG…
Radio-Gamma-Ray Properties and High-Energy Implications for Fermi Blazars
Xu-Hong Ye, Wen-Xin Yang, Guo-Hai Chen +5
Radio and -ray emissions in blazars, a subclass of active galactic nuclei (AGNs), provide important insight into their high-energy radiation processes. We studied the relation b…
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…
The Accretion Properties and Jet Mechanisms for the Low-Excitation Radio Galaxies
Xu-Hong Ye, Ranieri D. Baldi, Yong-Yun Chen +2
Radio galaxies (RGs) are a subclass of active galactic nuclei, which are suggested to be the parent populations of blazars. According to the accretion-ejection paragram, RGs can be…
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…
The Study of Jet Formation Mechanism in Fermi Blazars
Shangchun Xie, Zhihao Ouyang, Jingyu Wu +5
The origin of jet launching mainly comes from two mechanisms: the BZ mechanism and the BP mechanism. However, it is in debate which one is dominating in blazars. In this work, we u…
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…
Jet power extracted from ADAFs and the application to Fermi BL Lacertae objects
Chen Yongyun, Gu Qiusheng, Fan Junhui +4
We calculate the jet power of the Blandford-Znajek (BZ) model and the hybrid model based on the self-similar solution of advection-dominated accretion flows (ADAFs). We study the f…
The comparison of optical variability of broad-line Seyfert 1 and narrow-line Seyfert 1 galaxies from the view of Pan-STARRS
Hongtao Wang, Chao Guo, Hongmin Cao +3
By means of the data sets of the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS), we investigate the relationship between the variability amplitude and luminosity…
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 (…
Jet power, intrinsic -ray luminosity and accretion in jetted AGN
Chen Yonhyun, Gu Qiusheng, Fan Junhui +4
The correlation between the kinetic jet power , intrinsic -ray luminosity () and accretion () may reveal the underlying jet physics in va…
The jet formation mechanism of Gamma-ray Narrow-line Seyfert 1 Galaxies
Chen Yongyun, Gu Qiusheng, Fan Junhui +4
Under the coronal magnetic field, we estimate the maximal jet power of the Blandford-\Znajek (BZ) mechanism, Blandford-\Payne (BP) mechanism, and hybrid model. The jet power of the…
From the Fermi blazar sequence to the relation between Fermi blazars and gamma-ray Narrow-line Seyfert 1 Galaxies
Yongyun Chen, Qiusheng Gu, Junhui Fan +6
We use the third catalog of blazars detected by Fermi/LAT (3LAC) and gamma-ray Narrow-line Seyfert 1 Galaxies (gamma-NLSy1s) to study the blazar sequence and relationship between t…
The beaming effect and -ray emission for Fermi blazars
Yong-Yun Chen, Xiong Zhang, Dingrong Xiong +2
We study the -ray luminosity and beaming effect for Fermi blazars. Our results are as follows. (i) There are significant correlations between -ray luminosity and radio…
Jet/accretion and Unification for FSRQs/FRII and BL Lac objects/FRI radio galaxies
Yongyun Chen, Xiong Zhang, Haojing Zhang +5
We compiled a sample of 24 flat-spectrum radio quasars (FSRQs), 21 BL Lacs, 13 FRI and 12 FRII radio galaxies to study the jet power and broad-line luminosity relation, and the jet…
The jets-accretion relation, mass-luminosity relation in Fermi blazars
Xiaoling Yu, Xiong Zhang, Haojing Zhang +6
A sample of 111 Fermi blazars each with a well-established radio core luminosity, broad-line luminosity, bolometric luminosity and black hole mass has been compiled from the litera…
Black hole mass, jet power and accretion in AGN
Yong-Yun Chen, Xiong Zhang, Dingrong Xiong +1
We study the relation between accretion, black hole mass and jet power in AGN, by using a large group of blazars detected by the Fermi Large Area Telescope and radio galaxies. Our…
Core-dominance parameter, black hole mass and jet-disc connection in Fermi blazars
Y. Y. Chen, X. Zhang, H. J. Zhang +1
We study the relationship between jet power and accretion for Fermi and non-Fermi blazars, respectively. We also compare the relevant parameter between them. Our main results are a…