The Possible Presence of a Supermassive Black Hole at the Center

question 123

Multiple Choice

The possible presence of a supermassive black hole at the center of our Galaxy has been deduced from

• A) powerful magnetic fields in the huge filaments arching away from (or toward)the center.
• B) the number of globular clusters that are concentrated near the galactic center.
• C) gravitational radiation being emitted from stars as they are swallowed by the black hole.
• D) the very high orbital speed of stars close to the galactic center.

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