Which of the following observations confirms that Sgr A at the center of our galaxy is indeed a supermassive black hole?

A) measurements of radio emission from gas around Sgr A
B) measurements of occasional X-ray emission from Sgr A
C) measurements of the orbits of stars around Sgr A
D) measurements of trans-dimensional space warps in the vicinity of Sgr A


C

Physics & Space Science

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Indicate whether the statement is true or false

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a. True b. False Indicate whether the statement is true or false

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