If you wanted to determine the mass of a black hole in an X-ray binary, what would be easiest for you measure? Oa The radius of the event horizon. Ob The orbital distance, period, and mass of the companion star. Oc The size of the companion star. Od. The orbital speed of the black hole around the centre of mass.
If you wanted to determine the mass of a black hole in an X-ray binary, what would be easiest for you measure? Oa The radius of the event horizon. Ob The orbital distance, period, and mass of the companion star. Oc The size of the companion star. Od. The orbital speed of the black hole around the centre of mass.
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Transcribed Image Text:If you wanted to determine the mass of a black hole in an X-ray binary, what would be easiest for you measure?
Oa The radius of the event horizon.
Ob The orbital distance, period, and mass of the
companion star.
O. The size of the companion star.
Od. The orbital speed of the black hole around the centre
of mass.
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