From a theoretical standpoint,what is a pulsar?
A)a star that alternately expands and contracts in size
B)a rapidly rotating neutron star
C)a neutron star or black hole that happens to be in a binary system
D)a binary system that happens to be aligned so that one star periodically eclipses the other
E)a star that is burning iron in its core

Question

Quizplus · Accepted Answer

A pulsar is a rapidly rotating neutron star that emits beams of electromagnetic radiation out of its magnetic poles. As the poles of the pulsar rotate, the beams sweep across the sky, producing a pulsating signal that is detectable on Earth.

From a Theoretical Standpoint,what Is a Pulsar