How Do We Know That Pulsars Must Be Neutron Stars

question 110

Multiple Choice

How do we know that pulsars must be neutron stars?

• A)Pulsars have the same upper mass limit as neutron stars do.
• B)Telescopic images of pulsars and neutron stars look exactly the same.
• C)No massive object, other than a neutron star, could spin as fast as we observe pulsars to spin and remain intact.
• D)We have observed massive- star supernovae produce pulsars.
• E)This is only a theory that has not yet been confirmed by observations.

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