Origin of Nonthermal Emission from the Fermi Bubbles and Mechanisms of Particle Acceleration There

Abstract

We analyse processes of particle acceleration in the Fermi Bubbles. The goal of our investigations is to obtain restrictions for acceleration mechanisms. Our analysis of the three processes: acceleration from background plasma, re-acceleration of relativistic electrons emitted by supernova remnants, and acceleration by shocks generated by processes of star tidal disruption in the Galactic Center, showed that the model of multi-shock acceleration does not have serious objections at present and therefore seems us more attractive than others.

The text is pepared for publication in the Proceedings of IAU Symposium 303 "The Galactic Center: Feeding and Feedback in a Normal Galactic Nucleus", Santa Fe, USA, 2013

References in corpus (5)

• Giant Gamma-ray Bubbles from Fermi-LAT: AGN Activity or Bipolar Galactic Wind?
• The Fermi Bubbles: Giant, Multi-Billion-Year-Old Reservoirs of Galactic Center Cosmic Rays
• Giant Magnetized Outflows from the Centre of the Milky Way
• Fossil imprint of a powerful flare at the Galactic Centre along the Magellanic Stream
• Discovery of the recombining plasma in the south of the Galactic center; a relic of the past Galactic center activity?