Pulsars are rapidly rotating neutron stars that emit beams of electromagnetic radiation out of their magnetic poles. As the star rotates, these beams sweep across the Earth, appearing to pulse, hence the name "pulsar." They can emit in radio, X-ray, and visible light spectra, depending on their environment and characteristics.

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A Pulsar Is A(n)

Question 174

Multiple Choice

A pulsar is a(n)

A) rapidly rotating neutron star, emitting beams of radio energy and sometimes X-ray and visible energy.
B) binary star in which matter from one star is falling onto the second star.
C) object at the center of each galaxy, supplying energy from its rapid rotation.
D) pulsating star, in which size, temperature, and light intensity vary regularly.

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