High-energy astrophysics

High-energy astrophysics, also called high-energy astronomy, studies astronomical objects that release electromagnetic radiation at highly energetic wavelengths. It includes X-ray, gamma-ray, extreme ultraviolet, and neutrino astronomy, as well as studies of cosmic rays. Objects commonly studied include black holes, neutron stars, active galactic nuclei, supernovae, kilonovae, supernova remnants, and gamma-ray bursts.

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Also called

High-energy astronomy

Includes

X-ray, gamma-ray, extreme UV, and neutrino astronomy, plus cosmic-ray studies

Commonly studied objects

Black holes, neutron stars, active galactic nuclei, supernovae, kilonovae, supernova remnants, and gamma-ray bursts