Introduced in 1998 to attempt a first unified view of the broad-band emission properties of
blazars, the blazar sequence has been extensively used in the past 25 years to guide …

The blazar sequence, including negative correlations between radiative luminosity L rad
and synchrotron peak frequency ν, and between Compton dominance Y and ν, is widely …

This study uses a parabolic equation to fit the Inverse Compton (IC) spectral component of
3743 blazars (794 FSRQs, 1432 BL Lacs, and 1517 BCUs) from the 4FGL-DR3 catalog …

Context. Transition blazars exhibit a shift from one subclass to the next during different flux
states. It is therefore crucial to study them to understand the underlying physics of blazars …

Based on broadband spectral energy distributions (SEDs), we estimate the jet physical
parameters of 1392 γ-ray-loud active galactic nuclei (AGNs), the largest sample so far. The …

We carried out a pilot campaign of radio and optical band intra-day variability (IDV)
observations of five blazars (3C66A, S5 0716+ 714, OJ287, B0925+ 504 and BL Lacertae) …

We model simultaneous or quasi-simultaneous multi-band spectral energy distributions
(SEDs) for a sample of 25 blazars that have radio core-shift measurements, where a one …

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 …

The extragalactic radio sources are divided into two subclasses (radio-loud and radio-quiet
sources) in the literature using radio loudness (R), which is defined as the ratio of radio …

The spectacular observational phenomena lying in blazars can be well explained and
described by the relativistic beaming effect that the emission in the jet is highly boosted …