The Crab Pulsar is pulsing in visible light 30 times per second. Why?
A)It rotates 30 times per second.
B)It's a mystery; no one really knows.
C)It is eclipsed by a companion 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 neutron star that rotates 30 times per second. As it rotates, it emits beams of radiation that we detect as pulses.

The Crab Pulsar Is Pulsing in Visible Light 30 Times