| 单词 | gamma-ray astronomy |
| 释义 | gamma-ray astronomy[ gam-uh-rey ] / ˈgæm əˌreɪ / nounthe branch of astronomy that deals with the study of celestial objects by means of the gamma rays that come from them. Origin of gamma-ray astronomyFirst recorded in 1960–1965 Words nearby gamma-ray astronomygamma-interferon, gamma iron, gamma knife, gamma radiation, gamma ray, gamma-ray astronomy, gamma-ray burst, gamma rays, gamma stock, gammat, gammer Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for gamma-ray astronomygamma-ray astronomy nounthe investigation of cosmic gamma rays, such as those from quasars Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Scientific definitions for gamma-ray astronomygamma ray astronomy The study of astronomical objects by analyzing the gamma rays they emit. Because gamma rays are subject to atmospheric interference that makes them difficult to observe using ground-based telescopes, high-altitude balloons and orbiting observatories are often used to detect them. Most gamma rays in the universe are produced by events such as supernovas and black holes. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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