We review basic theoretical concepts in particle acceleration, with particular emphasis on
processes likely to occur in regions of magnetic reconnection. Several new developments …

Energetic particles represent an important component of the plasma in the heliosphere.
They range from particles accelerated at impulsive events in the solar corona and at large …

The complex interaction between shocks and plasma turbulence is extremely important to
address crucial features of energy conversion in a broad range of astrophysical systems. We …

In this paper, we present the first automatically constructed LASCO coronal mass ejection
(CME) catalog, a result of the application of the Computer Aided CME Tracking software …

The purpose of this tutorial is to introduce the main concepts behind normal and anomalous
diffusion. Starting from simple, but well known experiments, a series of mathematical …

Turbulence is ubiquitous in astrophysics. It radically changes many astrophysical
phenomena, in particular, the propagation and acceleration of cosmic rays. We present the …

Nonthermal acceleration of particles in magnetohydrodynamic (MHD) turbulence plays a
central role in a wide variety of astrophysical sites. This physics is addressed here in the …

Many high-energy astrophysical systems contain magnetized collisionless plasmas with
relativistic particles, in which turbulence can be driven by an arbitrary mixture of solenoidal …

We apply collisionless particle-in-cell simulations of relativistic pair plasmas to explore
whether driven turbulence is a viable high-energy astrophysical particle accelerator. We …

Driven by recent RHESSI observations of confined loop-top hard X-ray sources in solar
flares, we consider stochastic acceleration of electrons in the presence of Coulomb …