x-ray astronomy
(redirected from X-Ray Galaxy)Also found in: Encyclopedia.
x-ray astronomy
n.
The branch of astronomy that uses observations of emissions in the x-ray part of electromagnetic spectrum to study extraterrestrial sources such as stars, galaxies, and interstellar gas clouds.
X-ray astronomy
n
(Astronomy) 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
x-ray astronomy
The branch of astronomy dealing with the detection of objects in space by means of the x-rays they emit.