The object at the center of the Crab Nebula is
A) A massive O star
B) A neutron star
C) A 10 solar mass black hole.
D) An X-ray binary
E) A white dwarf
Correct Answer:
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Q14: Which of the following is true of
Q15: A white dwarf star such as Sirius-B
Q16: Which of the following is true for
Q17: The approximate size of a white dwarf
Q18: A neutron star has a radius of
Q20: What kind of pressure supports a white
Q21: What can escape from within the Schwarzschild
Q22: What happens to the escape velocity of
Q23: As a star collapses to produce a
Q24: Suppose an astronaut travels close to a
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