Перевод и анализ слов искусственным интеллектом ChatGPT
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- этимология
emitter$24551$ - перевод на греческий
![alpha spectrum]].](https://commons.wikimedia.org/wiki/Special:FilePath/Alpha decay energies example.svg?width=200 "alpha spectrum]].")
![Alpha radiation detected in an isopropanol [[cloud chamber]] (after injection of an artificial source radon-220).](https://commons.wikimedia.org/wiki/Special:FilePath/Alpha radiation in a cloud chamber.jpg?width=200 "Alpha radiation detected in an isopropanol [[cloud chamber]] (after injection of an artificial source radon-220).")
![Energy-loss ([[Bragg curve]]) in air for typical alpha particle emitted through radioactive decay.](https://commons.wikimedia.org/wiki/Special:FilePath/Bragg Curve for Alphas in Air-PT-en.svg?width=200 "Energy-loss ([[Bragg curve]]) in air for typical alpha particle emitted through radioactive decay.")
![A physicist observes alpha particles from the decay of a polonium source in a [[cloud chamber]]](https://commons.wikimedia.org/wiki/Special:FilePath/Physicist Studying Alpha Rays GPN-2000-000381.jpg?width=200 "A physicist observes alpha particles from the decay of a polonium source in a [[cloud chamber]]")
Определение
Википедия
A Lyman-alpha emitter (LAE) is a type of distant galaxy that emits Lyman-alpha radiation from neutral hydrogen.
Most known LAEs are extremely distant, and because of the finite travel time of light they provide glimpses into the history of the universe. They are thought to be the progenitors of most modern Milky Way type galaxies. These galaxies can be found nowadays rather easily in narrow-band searches by an excess of their narrow-band flux at a wavelength which may be interpreted from their redshift:
where z is the redshift, is the observed wavelength, and 1215.67 Å is the wavelength of Lyman-alpha emission. The Lyman-alpha line in most LAEs is thought to be caused by recombination of interstellar hydrogen that is ionized by an ongoing burst of star formation. Such Lyman alpha emission was first suggested as a signature of young galaxies by Bruce Partridge and P. J. E. Peebles in 1967. Experimental observations of the redshift of LAEs are important in cosmology because they trace dark matter halos and subsequently the evolution of matter distribution in the universe.
