182 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Guangzhou UniversityCN52 papers
- Chinese Academy of SciencesCN11 papers
- Hunan University of Arts and ScienceCN9 papers
- National Astronomical ObservatoriesCN9 papers
- University of Science and Technology of ChinaCN9 papers
- University of PaduaIT8 papers
- Shanghai Astronomical ObservatoryCN7 papers
- Shanghai Normal UniversityCN7 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PadovaIT5 papers
- University of Chinese Academy of SciencesCN5 papers
- Kavli Institute for Theoretical SciencesCN4 papers
- Sun Yat-sen UniversityCN4 papers
13 papers · 1 filter
Co-evolution of Nuclear Star Clusters and Massive Black Holes: Extreme Mass-Ratio Inspirals
Fupeng Zhang, Pau Amaro Seoane
We explore extreme mass-ratio inspirals (EMRIs) in the co-evolution of massive black holes (MBHs) and nuclear star clusters (NSCs), which host diverse stellar populations across a…
Self-consistent Solutions of Evolving Nuclear Star Clusters with Two-Dimensional Monte-Carlo Dynamical Simulations
Fupeng Zhang, Pau Amaro Seoane
We recently developed a Monte-Carlo method (GNC) that can simulate the dynamical evolution of a nuclear stellar cluster (NSC) with a massive black hole (MBH), where the two-body re…
Improving constraints on the extended mass distribution in the Galactic Center with stellar orbits
The GRAVITY Collaboration, Karim Abd El Dayem, Roberto Abuter +66
Studying the orbital motion of stars around Sagittarius A* in the Galactic Center provides a unique opportunity to probe the gravitational potential near the supermassive black hol…
Constraining the -ray Emission Region for Fermi-Detected FSRQs by the Seed Photon Approach
Danyi Huang, Ziyan Li, Jiru Liao +5
The location of -ray emitting region in blazars has been an open issue for several decades and is still being debated. We use the Paliya et al. sample of 619 -ray-loud flat-s…
The radio dichotomy of active galactic nuclei
Hubing Xiao, Jingtian Zhu, Liping Fu +2
The question of radio dichotomy in the active galactic nuclei (AGNs) is still in debate even it has been proposed for more than forty years. In order to solve the old riddle, we co…
Unification of BL Lac objects, FR I and FR II(G) radio galaxies and Doppler factor Estimation for BL Lac Objects
Xu-Hong Ye, Jun-Hui Fan
In this work, we collected a sample of BL Lacs, FR I and FR II(G) radio galaxies with available core and extended emissions from published works to discuss the unified schemes and…
Extracting the Possible Intrinsic Relation between Radiative Efficiency and Mass of QSOs: a Maximum Likelihood Method and its Application to the SDSS DR7 QSOs
Fupeng Zhang, Youjun Lu
Radiative efficiencies of QSOs and its distribution encode rich information on the evolution of both masses and spins of massive black holes (MBHs) across cosmic time. In this pape…
The relationship between the radio core-dominance parameter and spectral index in different classes of extragalactic radio sources (III)
Zhi-Yuan Pei, Jun-Hui Fan, Denis Bastieri +3
Active galactic nuclei (AGNs) can be divided into two major classes, namely radio-loud and radio-quiet AGNs. A small subset of the radio-loud AGNs is called blazars, which are beli…
The relationship between the radio core-dominance parameter and spectral index in different classes of extragalactic radio sources (II)
Zhi-Yuan Pei, Jun-Hui Fan, Denis Bastieri +2
Active galactic nuclei (AGNs) can be divided into two major classes, namely radio loud and radio quiet AGNs. A small subset of the radio-loud AGNs is called blazars, which are beli…
Systematic investigation of X-ray spectral variability of TeV blazars during flares in the era
Yijun Wang, Yongquan Xue, Shifu Zhu +1
Utilizing all the 16-year observations, we analyze the X-ray spectra of 32 TeV blazars, and perform a systematic investigation of X-ray spectral variability for the 5 bright…
Mid-infrared variability of changing-look AGN
Zhenfeng Sheng, Tinggui Wang, Ning Jiang +4
It is known that some active galactic nuclei (AGNs) transited from type 1 to type 2 or vice versa. There are two explanations for the so-called changing look AGNs: one is the drama…
Carbon and Nitrogen Abundance Ratio In the Broad Line Region of Tidal Disruption Events
Chenwei Yang, Tinggui Wang, Gary J. Ferland +4
The rest-frame UV spectra of three recent tidal disruption events (TDEs), ASASSN-14li, PTF15af and iPTF16fnl display strong nitrogen emission lines but weak or undetectable carbon…
Optical monitoring of BL Lac object S5 0716+714 and FSRQ 3C273 from 2000 to 2014
Yu-Hai Yuan, Jun-hui Fan, Jun Tao +5
Using the 1.56m telescope at the Shanghai Observatory (ShAO), China, we monitored two sources, BL Lac object S5 0716+714 and Flat Spectrum Radio Quasar (FSRQ) 3C 273. For S5 0716+7…