gamma ray astronomy

gamma-ray astronomy

[gam-uh-rey]
noun
the branch of astronomy that deals with the study of celestial objects by means of the gamma rays that come from them.

Origin:
1960–1965

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Collins
World English Dictionary
gamma-ray astronomy
 
n
the investigation of cosmic gamma rays, such as those from quasars

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
gamma 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 © 2002. Published by Houghton Mifflin. All rights reserved.
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