This review provides an overview of recent advances in multi-wavelength and multi-
messenger observations of blazars, the current status of theoretical models for blazar …

This article reviews the recent observational results regarding γ-ray emission from active
galaxies. The most numerous discrete extragalactic γ-ray sources are AGNs dominated by …

Magnetic reconnection in relativistic collisionless plasmas can accelerate particles and
power high-energy emission in various astrophysical systems. Whereas most previous …

Blobs, or quasi-spherical emission regions containing relativistic particles and magnetic
fields, are often assumed ad hoc in emission models of relativistic astrophysical jets, yet their …

Powerful flares from blazars with short (∼ min) variability time-scales are challenging for
current models of blazar emission. Here, we present a physically motivated ab initio model …

Nonthermal electron acceleration via magnetic reconnection is thought to play an important
role in powering the variable X-ray emission from radiatively inefficient accretion flows …

Magnetic reconnection in relativistic plasmas is well established as a fast and efficient
particle accelerator, capable of explaining the most dramatic astrophysical flares. With …

Markarian 421 (Mrk 421 hereafter) is a nearby active galaxy with a featureless optical
spectrum devoid of prominent emission or absorption lines, strongly polarized variable …

Magnetic reconnection is a primary mechanism for particle energization in space and
astrophysical plasmas. By carrying out two-dimensional (2D) fully kinetic simulations, we …

Magnetic reconnection is invoked as an efficient particle accelerator in a variety of
astrophysical sources of non-thermal high-energy radiation. With large-scale two …