The temperature of the hot intergalactic gas that results from the merger of galaxies can range from 300,000 to 5 million K. What is the BEST electromagnetic radiation range in which to view this hot gas?
A) X-ray
B) visible
C) infrared
D) radio

Question

Quizplus · Accepted Answer

The hot intergalactic gas resulting from galaxy mergers emits most strongly in the X-ray part of the electromagnetic spectrum due to its extremely high temperature, ranging from 300,000 to 5 million Kelvin. X-ray astronomy is used to study such high-energy environments.

The Temperature of the Hot Intergalactic Gas That Results from the Merger