106 citations · 578 across the 25 of their papers we have counts for
25 papers
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…
Broadband multi-wavelength study of LHAASO detected AGN
Ze-Rui Wang, Rui Xue, Dingrong Xiong +4
Recently, the Large High Altitude Air Shower Observatory (LHAASO) collaboration presented the first catalog of -ray sources using 508 days of LHAASO data, from March 2021 to Sep…
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…
Detection of a possible high-confidence radio quasi-periodic oscillation in the BL Lac PKS J2134-0153
Guowei Ren, Nan Ding, Xiong Zhang +5
We have searched quasi-periodic oscillations (QPOs) for BL Lac PKS J2134-0153 in the 15 GHz radio light curve announced by the Owens Valley Radio Observatory 40-m telescope during…
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…
Astronomical Site Monitoring System at Lijiang Observatory
Yu-Xin Xin, Jin-Ming Bai, Bao-Li Lun +18
We installed two sets of Astronomical Site Monitoring System(ASMS) at Lijiang Observatory(GMG), for the running of the 2.4-meter Lijiang optical telescope(LJT) and the 1.6-meter Mu…
Multicolor Optical Monitoring of the Blazar S5 0716+714 from 2017 to 2019
Dingrong Xiong, Jinming Bai, Junhui Fan +7
We continuously monitored the blazar S5 0716+714 in the optical , and bands from Nov. 10, 2017 to Jun. 06, 2019. The total number of observations is 201 nights including…
Exploring the origin of multiwavelength activities of high-redshift FSRQ PKS 1502+106 during 2014-2018
N. Ding, Q. S. Gu, X. F. Geng +4
The origin of the multi-band activities (outbursts/flares) of blazars is still a heavily debated topic. Shock and magnetic reconnection have long been considered as possible trigge…
Lijiang 2.4-meter Telescope and its Instruments
Chuan-Jun Wang, Jin-Ming Bai, Yu-Feng Fan +32
Lijiang 2.4-meter Telescope(LJT), the largest common-purpose optical telescope in China, has been applied to the world-wide astronomers since 2008. It is located at Gaomeigu site,…
Polarization of Astrophysical Events with Precessing Jets
Mi-Xiang Lan, Rui Xue, Dingrong Xiong +3
A central compact object (CCO, e.g. a black hole) with an accretion disk has been suggested as the common central engine of various astrophysical phenomena, such as gamma-ray burst…
Optical quasi-periodic oscillation of the BL Lacertae object S5 0716+714 during the faint state
Shanwei Hong, Dingrong Xiong, Jinming Bai
In order to search for the evidence of quasi-periodic oscillation (QPO) in blazar, multicolor optical observations of the BL Lacertae object S5 0716+714 were performed from 2005 to…
On estimators of the jet bolometric luminosity of Fermi 2LAC blazars
Zerui Wang, Rui Xue, Leiming Du +5
Bolometric luminosity is a basic physical parameter that is widely used in the study of blazars. Due to the lack of simultaneous full wavelength data, several estimators of the bol…
Multi-color optical monitoring of the BL Lacertae object S5 0716+714 during the 2012 outburst
Shanwei Hong, Dingrong Xiong, Jinming Bai
We have monitored the BL Lacertae object S5 0716+714 in the optical bands during 2012 January and February with long time spans on intraday timescales (5 hr) and high time resol…
Multi-color optical monitoring of the quasar 3C 273 from 2005 to 2016
Dingrong Xiong, Jinming Bai, Haojing Zhang +4
We have monitored the quasar 3C 273 in optical , and bands from 2005 to 2016. Intraday variability (IDV) is detected on seven nights. The variability amplitudes for most…
The physical properties of \textit{Fermi} TeV BL Lac objects jets
N. Ding, X. Zhang, D. R. Xiong +1
We investigate the physical properties of \textit{Fermi} TeV BL Lac objects jets by modeling the quasi-simultaneous spectral energy distribution of 29 \textit{Fermi} TeV BL Lacs in…
Curvature of the spectral energy distribution, the dominant process for inverse Compton component and other jet properties in Fermi 2LAC blazars
R. Xue, D. Luo, L. M. Du +7
We fit the spectral energy distributions (SEDs) of members of a large sample of Fermi 2LAC blazars to synchrotron and inverse Compton (IC) models. Our main results are as follows.…
Multi-color optical monitoring of Mrk 501 from 2010 to 2015
Dingrong Xiong, Xiong Zhang, Tingfeng Yi +5
We have monitored the BL Lac object Mrk 501 in optical , and bands from 2010 to 2015. For Mrk 501, the presence of strong host galaxy component can affect the results of…
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…
From the "blazar sequence" to unification of blazars and radio galaxies
Dingrong Xiong, Xiong Zhang, Jinming Bai +1
Based on a large Fermi blazar sample, the blazar sequence (synchrotron peak frequency versus synchrotron peak luminosity ) is revisited. It is found th…
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…
Basic properties of Fermi blazars and the "blazar sequence"
Dingrong Xiong, Xiong Zhang, Jinming Bai +1
By statistically analyzing a large sample which includes blazars of Fermi detection (FBs) and non-Fermi detection (NFBs), we find that there are significant differences between FBs…