xray astronomy
Ads
X-Ray Imaging Cameras www.microphotonics.com/ State of The Art in Camera Fast Scan High Resolution Low Light
Gas Radiant Heaters www.solaronicsusa.com/ by Solaronics for commercial, industrial & agricultural buildings
x-ray astronomy
noun
the branch of astronomy that studies celestial objects by means of the x-rays emitted by them. Compare x-ray ( def 1b ).
Origin:
1960–65
1960–65
Related forms
x-ray astronomer, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source
|
Link To xray astronomy
Collins
World English Dictionary
| X-ray astronomy | |
| —n | |
| the branch of astronomy concerned with the detection and measurement of X-rays emitted by certain celestial bodies. As X-rays are absorbed by the atmosphere, satellites and rockets are used | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
00:10
Xray astronomy
is always a great word to know.
So is lollapalooza. Does it mean:
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
American Heritage
Science Dictionary
| x-ray astronomy
The study of celestial objects by measurement of the x-rays they emit. Because the Earth's atmosphere absorbs x-rays, x-ray detectors are usually carried into space on satellites. X-rays are emitted by high-energy objects such as active galactic nuclei, supernova remnants, x-ray binary stars, neutron stars, and the regions around black holes. Objects which do not produce their own x-rays can reflect radiation from nearby stars, making it possible to study the objects using x-ray astronomy; one notable example of this is the analysis of solar x-rays reflected by the Moon. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Nearby Words
Copyright © 2013 Dictionary.com, LLC. All rights reserved.
