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what did astronomers use as proof of the existence of black holes?​

Sagot :

Answer:

Black holes are detected as surrounding material (like gas) is funnelled by the force of gravity into a disk around the black hole. The gas molecules in the disk swirl around the black hole so fast that they heat up and emit X-rays. Black holes can also be detected by watching for motions of stars near the black hole.

Answer:

astronomers believe that supermassive black holes lie at the center of virtually all larger galaxies, even our own Milky way. Astronomers can detect them by watching for thier effects on nearby stars and gas. this chart shows the relative message of super-dense cosmic objects