Recent Developments in Particle Acceleration at Shocks: Theory and Observations

Abstract Energetic particles represent an important component of the plasma in heliosphere. They range from accelerated at impulsive events solar corona and large scale structures interplanetary medium, to anomalous cosmic rays boundaries In-situ satellite observations, numerical simulations theoretical models have advanced, often a cooperative way, our knowledge on acceleration processes involved. In this paper we review recent developments particle acceleration, with major emphasis shock giving overview observations shocks termination wind. We discuss their interpretation terms analytical simulations. The influence transport properties mechanism will also be addressed.