Black holes that are stellar remnants can be found by searching for
A) dark regions at the centers of galaxies.
B) variable X-ray sources.
C) extremely luminous infrared objects.
D) objects with very faint radio emission.
E) regular, repeated pulsations at radio wavelengths.

Question

Quizplus · Accepted Answer

Stellar remnant black holes can be detected as variable X-ray sources because they often have accretion disks that emit X-rays as matter falls into the black hole.

Black Holes That Are Stellar Remnants Can Be Found by Searching