
TL;DR
This paper reviews the current understanding of gamma-ray emissions from blazars, highlighting observational data and theoretical challenges related to rapid variability and high-energy emissions.
Contribution
It provides a concise overview of recent observational findings and discusses the theoretical issues in modeling blazar gamma-ray emissions.
Findings
Observations by Fermi/LAT and Cherenkov telescopes reveal rapid variability in blazars.
Theoretical challenges include explaining ultra-fast variability and flat spectrum radio quasar emissions.
Current models face difficulties in accounting for the observed high-energy phenomena.
Abstract
Blazars are high-energy engines providing us natural laboratories to study particle acceleration, relativistic plasma processes, magnetic field dynamics, black hole physics. Key informations are provided by observations at high-energy (in particular by Fermi/LAT) and very-high energy (by Cherenkov telescopes). I give a short account of the current status of the field, with particular emphasis on the theoretical challenges connected to the observed ultra-fast variability events and to the emission of flat spectrum radio quasars in the very high energy band.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
