What causes the radio pulses of a pulsar?
A)The star vibrates.
B)As the star spins,beams of radio radiation sweep through space.If one of the beams crosses Earth,we observe a pulse.
C)The star undergoes periodic explosions of nuclear fusion that generate radio emission.
D)The star's orbiting companion periodically eclipses the radio waves emitted by the main pulsar.
E)A black hole near the star absorbs energy and re-emits it as radio waves.

Question

Quizplus · Accepted Answer

Pulsars are rapidly rotating neutron stars that emit beams of radio radiation from their magnetic poles. As the star spins, these beams sweep through space, and if one of them crosses Earth, we observe a pulse.

What Causes the Radio Pulses of a Pulsar