Askaryan effect

== English == === Etymology === Named after Soviet-Armenian physicist Gurgen Askaryan, who postulated it in 1962. === Noun === Askaryan effect (plural Askaryan effects) (particle physics) The phenomenon whereby a particle traveling faster than the phase velocity of light in a dense dielectric (such as salt, ice or the lunar regolith) produces a shower of secondary charged particles which contains a charge anisotropy and emits a cone of coherent radiation in the radio or microwave part of the electromagnetic spectrum. Synonym: Askaryan radiation === Further reading === Askaryan effect on Wikipedia.Wikipedia