The Intense X-Rays Emitted by a Suspected Black Hole Are

question 368

Multiple Choice

The intense X-rays emitted by a suspected black hole are generated by what physical mechanism?

• A) the blueshifting of light emitted by hot gas into the X-ray region of the electromagnetic spectrum by the extreme speed of the gas moving into the black hole
• B) induced emission in atoms by the intense gravitational field as material moves toward the black hole
• C) compressional heating as material moves into the hole
• D) the deceleration of matter as it abruptly stops at the event horizon of the black hole

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