Gamma-ray astronomy is a research area focused on the observation, analysis, and interpretation of the universe in the gamma-ray portion of the electromagnetic spectrum, typically above ~100 keV. It investigates high-energy astrophysical processes such as particle acceleration, non-thermal radiation mechanisms, and nuclear transitions in environments including supernova remnants, pulsars, active galactic nuclei, gamma-ray bursts, and the Galactic Center. The field relies on space-based telescopes and ground-based air-shower or Cherenkov detectors, using techniques such as spectral analysis, timing studies, and imaging to constrain models of cosmic-ray production, magnetohydrodynamic processes, relativistic jets, and potential signatures of dark matter annihilation or decay.
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