gamma-ray burst

noun
variants: or less commonly gamma ray burst

Definition of gamma-ray burst

: a brief, powerful jet of gamma rays detected deep in space that is generated by the collapse and explosion of a celestial object Eventually, though, the neutron star slows down, probably because of magnetic braking. Then it implodes, touching off a gamma ray burst.— Govert Schilling abbreviation GRB

Examples of gamma-ray burst in a Sentence

Recent Examples on the Web There have been a number of additional gravitational wave detections since then, most notably 2017's binary neutron star merger, supported by a simultaneous gamma-ray burst and signals in the rest of the electromagnetic spectrum. Jennifer Ouellette, Ars Technica, "Physicists identify unique signature to confirm quark-gluon plasma in Universe," 1 May 2020 Almost every day, without warning, gamma-ray bursts (GRBs) wash over Earth from somewhere in the vast depths of the cosmos. Lee Billings, Scientific American, "Record-Breaking Gamma Rays Reveal Secrets of the Universe’s Most Powerful Explosions," 20 Nov. 2019 But although lethal, nearby gamma-ray bursts are also very rare. Seth Shostak, Quartz, "Humanity will outlive climate change and nuclear war, no matter how bad it gets," 26 Sep. 2019 DePinna liquefied the dry technical NASA language describing weak gamma-ray bursts from the direction of Ursa Major with honks on Oba’s sax and all the players hitting their instruments with flexible hollow tubes. Los Angeles Times, "Review: Musicians turn the Big Dipper into an ‘interstellar cantata,’ with help from NASA," 11 Sep. 2019 Meanwhile, your other instrument, a dozen detectors working in tandem, senses the whole sky (except for where Earth blocks the view) on the hunt for distant flashes called gamma-ray bursts (GRBs). Liz Kruesi, National Geographic, "Dear Fermi: What it means to see the universe's extremes," 11 June 2019 In 1973, the U.S. military declassified the existence of gamma-ray bursts (GRBs), first detected in the 1960s by military satellites designed to find gamma radiation from nuclear weapons tests. Yvette Cendes, Discover Magazine, "What Are FRBs? The Discovery of Mysterious Signals From the Cosmos," 7 Feb. 2019 The event, a gamma-ray burst, was triggered by the merger of two neutron stars, forming a single mass of neutrons that was large enough to collapse into a black hole shortly afterwards. John Timmer, Ars Technica, "Neutron-star merger blasted a jet of material through the debris," 5 Sep. 2018 The new results suggest that neutron-star mergers are important sources of short-duration gamma-ray bursts, study team members said. Mike Wall, Space.com, "Faster Than Light? Neutron-Star Merger Shot Out a Jet with Seemingly Impossible Speed," 5 Sep. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'gamma-ray burst.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of gamma-ray burst

1973, in the meaning defined above

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The first known use of gamma-ray burst was in 1973

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Cite this Entry

“Gamma-ray burst.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gamma-ray%20burst. Accessed 23 Oct. 2020.

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