synchrotron radiation

noun

: radiation emitted by high-energy charged relativistic particles (such as electrons) when they are accelerated by a magnetic field (as in a nebula)

Examples of synchrotron radiation in a Sentence

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Perhaps that synchrotron radiation is being powered by a magnetar, the team believes, which is a highly magnetic pulsar. Keith Cooper, Space.com, 12 Aug. 2025 Cosmic Cartography Scientists typically find cosmic magnetic fields by studying synchrotron radiation — radio emissions produced as a magnetic field bends the path of electrons traveling close to the speed of light. Quanta Magazine, 6 Feb. 2024 Rather than revealing shock waves and hot gas, the JWST images show features arising from the Crab's dust and its synchrotron radiation. Phil Plait, Scientific American, 10 Nov. 2023 The synchrotron radiation imaging was detailed enough that the species that the trilobite had been eating could be identified. John Timmer, Ars Technica, 27 Sep. 2023 The ions gyrate around the SMBH magnetic field lines, producing synchrotron radiation at many wavelengths. science.org, 25 Apr. 2023

Word History

Etymology

from its having been first observed in a synchrotron

First Known Use

1956, in the meaning defined above

Time Traveler
The first known use of synchrotron radiation was in 1956

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Cite this Entry

“Synchrotron radiation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/synchrotron%20radiation. Accessed 8 Sep. 2025.

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