A pulsar is a(n)
A) interstellar beacon manufactured by little green persons (LGPs).
B) type of variable star,pulsating rapidly in size and brightness.
C) rapidly spinning neutron star.
D) accretion disk around a black hole,emitting light as matter is accumulated on the disk.

Question

Quizplus · Accepted Answer

A pulsar is a rapidly spinning neutron star, which emits beams of electromagnetic radiation out of its magnetic poles. The rotation of the neutron star causes the beams to appear to pulse or flash as they sweep across the sky, giving rise to the name "pulsar."

A Pulsar Is A(n)