What Causes the Radio Pulses of a Pulsar

question 63

Multiple Choice

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.

---

Definitions:

Iconic Memory

A type of visual sensory memory that holds an exact copy of the seen object for a very brief period of time.

Limbic System

Neural system (including the amygdala, hypothalamus, and hippocampus) located below the cerebral hemispheres; associated with emotions and drives.

Hippocampus

A region of the brain associated with memory formation, navigation, and emotional response.

Explicit Memories

Memories that can be consciously recalled, such as facts or events.