Fundamental Physics With Cosmic High-Energy Gamma Rays

TL;DR

This paper reviews how high-energy gamma-ray observations from ground and space detectors advance our understanding of fundamental physics under extreme conditions, highlighting recent progress and future prospects.

Contribution

It provides a comprehensive overview of current experimental results and discusses upcoming developments in high-energy gamma-ray astrophysics for fundamental physics research.

Findings

Progress in gamma-ray sky observations thanks to new detectors

Insights into fundamental physics from high-energy gamma-ray data

Future experimental developments expected to enhance understanding

Abstract

High-energy photons (above the MeV) are a powerful probe for astrophysics and for fundamental physics under extreme conditions. During the recent years, our knowledge of the high-energy gamma-ray sky has impressively progressed thanks to the advent of new detectors for cosmic gamma rays, at ground (H.E.S.S., MAGIC, VERITAS, HAWC) and in space (AGILE, Fermi). This presentation reviews the present status of the studies of fundamental physics problems with high-energy gamma rays, and discusses the expected experimental developments.