Gamma-Ray Astronomy from the Ground

14th International Conference on Topics in Astroparticle and Underground Physics

物理学;天文学

Horns, Dieter^1

University of Hamburg, Luruper Chaussee 159, Hamburg

22761, Germany^1

关键词: Astrophysical plasma;    Energy fluxes;    Gamma ray sources;    Gamma-ray astronomy;    Lorentz invariance;    Particle acceleration;    Pseudoscalars;    The standard model;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/718/2/022010/pdf
DOI  :  10.1088/1742-6596/718/2/022010

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

The observation of cosmic gamma-rays from the ground is based upon the detection of gamma-ray initiated air showers. At energies between approximately 1011eV and 1013eV, the imaging air Cherenkov technique is a particularly successful approach to observe gamma-ray sources with energy fluxes as low as ≈ 10-13erg cm-2s-1. The observations of gamma-rays in this energy band probe particle acceleration in astrophysical plasma conditions and are sensitive to high energy phenomena beyond the standard model of particle physics (e.g., self-annihilating or decaying dark matter, violation of Lorentz invariance, mixing of photons with light pseudoscalars). The current standing of the field and its major instruments are summarized briefly by presenting selected highlights. A new generation of ground based gamma-ray instruments is currently under development. The perspectives and opportunities of these future facilities will be discussed.