The Relativistic Jet and Central Engine of Fermi Blazars
The origin of jets is one of the most important issues concerning active galactic nuclei, yet it
has remained obscure. In this work, we made use of information from emission lines …
has remained obscure. In this work, we made use of information from emission lines …
The jet apparent motion and central engine study of Fermi blazars
The study of blazar jet has been performed for several decades via VLBI technique, while its
generation and propagation stay unclear. In the present work, we compiled a sample of 407 …
generation and propagation stay unclear. In the present work, we compiled a sample of 407 …
An Extensive Study of Blazar Broad Emission Line: Changing-look Blazars and the Baldwin Effect
It is known that the blazar jet emissions are dominated by nonthermal radiation, while the
accretion disk jets are normally dominated by thermal emission. In this work, our aim is to …
accretion disk jets are normally dominated by thermal emission. In this work, our aim is to …
Exploring TeV candidates of Fermi blazars through machine learning
In this work, we make use of a supervised machine-learning algorithm based on Logistic
Regression (LR) to select TeV blazar candidates from the 4FGL-DR2/4LAC-DR2, 3FHL …
Regression (LR) to select TeV blazar candidates from the 4FGL-DR2/4LAC-DR2, 3FHL …
The radio dichotomy of active galactic nuclei
The question of radio dichotomy in active galactic nuclei (AGNs) is still in debate, even
though it has been discussed for more than 40 years. In order to solve this old riddle, we …
though it has been discussed for more than 40 years. In order to solve this old riddle, we …
Variability and Spectral Behavior of Gamma-Ray Flares of 3C 279
Abstract 3C 279 showed enhanced flux variations in Fermi-LAT γ-ray observations from
2018 January to June. We present a detailed Fermi-LAT analysis to investigate the …
2018 January to June. We present a detailed Fermi-LAT analysis to investigate the …
The fundamental plane of FSRQs based on the black hole spin-mass energy
X Zhang, QG Gao - Astrophysics and Space Science, 2023 - Springer
Previous studies have identified the Fundamental Plane (FP) of Active Galactic Nuclei
(AGNs) in recent years. However, these findings relied on total black hole mass, also known …
(AGNs) in recent years. However, these findings relied on total black hole mass, also known …
Comparison between Fermi detected and non-Fermi detected superluminal sources
Active galactic nuclei (AGNs) have been attracting research attention due to their special
observable properties. Specifically, a majority of AGNs are detected by Fermi-LAT missions …
observable properties. Specifically, a majority of AGNs are detected by Fermi-LAT missions …
Further evidence of superluminal active galactic nuclei as γ‐ray sources
In our previous work in Xiao et al.(SCPMA, 2019, 62, 129811), we suggested that six
superluminal sources could be γ‐ray candidates, and in fact, five of them have been …
superluminal sources could be γ‐ray candidates, and in fact, five of them have been …
The spectral index study for Fermi blazars
In this work, we compiled a sample of 1172 4FGL blazars with available spectral information
and broadband intensities to the study the spectral indices. Based on this sample, we …
and broadband intensities to the study the spectral indices. Based on this sample, we …