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 …

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 …

In the study of radiation mechanisms of active galactic nuclei (AGN) jets, hadronuclear (pp)
interactions are commonly neglected, because the number density of cold protons in the jet …

Studies and constraints on the emission region are crucial to the blazar radiation
mechanism. Yet previous works have mainly focused on individual sources. In this work, we …

We present second observations by K2 of OJ 287 and seven other γ-ray active galactic
nuclei (AGNs) obtained in 2017–2018, second and third observations of the lobe …

Previous studies on the fitting of spectral energy distributions (SEDs) often apply the external-
Compton process to interpret the high-energy peak of low-synchrotron-peaked (LSP) BL Lac …

The" blazar sequence" has been proposed for more than 20 yr, yet its nature is still unclear.
In this work, for the first time we expand this topic to the TeV band by using a sample of 58 …

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 blazars …

The correlation between the kinetic jet power P jet, intrinsic γ-ray luminosity (L int), and
accretion (L disc) may reveal the underlying jet physics in various black hole systems. We …

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 …