Most black holes are found:
A) by the watching the orbits of nearby stars
B) from the bending of the light from background stars
C) by finding objects that emit no light
D) by the X-rays produced by a surrounding accretion disk
E) by the detection of Hawking radiation

Question

Quizplus · Accepted Answer

Most black holes are found by the X-rays produced by a surrounding accretion disk. As the black hole's intense gravity pulls matter from a nearby star, the material forms a surrounding accretion disk that releases X-rays as it heats up, which can be detected by x-ray telescopes.

Most Black Holes Are Found