Choose the best answer to each of the
Chapter , Problem 11QQ(choose chapter or problem)
Problem 11QQ
Choose the best answer to each of the following. Explain your reasoning with one or more complete sentence
We measure the mass of a black hole in an X-ray binary from (a) the orbital period of the system and the orbital velocity inferred from its spectral lines. (b) the period of its X-ray pulses. (c) the mass of its companion star.
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