The Crab Pulsar is pulsing in visible light 30 times per second. Why?
A) It's a mystery: no one really knows.
B) It is eclipsed by a companion 30 times per second.
C) It rotates 30 times per second.
D) A jet ejects energy and particles from a hot spot 30 times per second.

Question

Quizplus · Accepted Answer

The Crab Pulsar is a type of pulsar that rotates rapidly, in this case, 30 times per second, emitting beams of electromagnetic radiation that we detect as regular pulses. This is a result of the pulsar's highly magnetized, rapidly rotating core.

The Crab Pulsar Is Pulsing in Visible Light 30 Times