Hypernovae are
A) supernovae that occur when two red dwarfs collide.
B) supernovae that occur when 10-solar-mass stars explode.
C) supernovae that occur when stars more massive than 25 solar masses explode.
D) one theory to explain the production of gamma-ray bursters.
E) supernovae that occur when stars more massive than 25 solar masses explode and one theory to explain the production of gamma-ray bursters.
Correct Answer:
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Q1: An isolated black hole in empty intergalactic
Q3: The peculiar system SS 433
I.is emitting
Q4: The density of a _ is greater
Q5: The density of a neutron star is
A)about
Q6: _ are neutron stars that have magnetic
Q7: Pulsars cannot be spinning white dwarfs because
A)white
Q8: The event horizon
A)is believed to be a
Q9: Cygnus X-1 and LMC X-3 are black
Q10: Neutron stars are expected to spin rapidly
Q11: Observations from the Compton Gamma Ray Observatory
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