Glossary term: Gamma Ray

Also known as gamma radiation

Description: Gamma ray photons are the most energetic photons in the electromagnetic spectrum, expressed by the symbol "γ". Gamma ray photons generally carry an energy greater than 100 kiloelectronvolts and have frequencies of about 10¹⁹ hertz or greater, and wavelengths less than 100 picometers. Gamma rays are emitted by the nuclei of some radionuclides after radioactive decay. In astronomy gamma rays are emitted by the most extreme supernovae as gamma ray bursts.

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Term and definition status: This term and its definition is still awaiting approval

The OAE Multilingual Glossary is a project of the IAU Office of Astronomy for Education (OAE) in collaboration with the IAU Office of Astronomy Outreach (OAO). The terms and definitions were chosen, written and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits here. All glossary terms and their definitions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE".