The cause of the pulsations we see in the light from neutron stars is
A) pulsations of its neutrons.
B) motions of electrons within the star.
C) the spinning motion of the star.
D) the in and out pulsations of star's radius, as the star gets rapidly larger and then smaller.
E) Nonsense-- neutron stars do not pulsate.

Question

Quizplus · Accepted Answer

The pulsations in the light from neutron stars are caused by their rapid spinning motion, which results in beams of radiation sweeping across space, similar to a lighthouse.

The Cause of the Pulsations We See in the Light