One Newly Discovered Type of Neutron Star Is the "Rotating

question 172

Multiple Choice

One newly discovered type of neutron star is the "rotating radio transient," which occasionally emits a very brief burst of intense radio radiation. What is the BEST explanation, at present, for this phenomenon?

• A) Rotating radio transients are very young neutron stars, and they emit radio radiation in response to a "settling down" deep in their interiors.
• B) Rotating radio transients are very old neutron stars. They have cooled off until their temperatures are low enough to emit radiation in the radio range.
• C) Rotating radio transients are neutron stars in eclipsing binary systems, and the output of radio radiation is periodically eclipsed by the companion.
• D) Rotating radio transients are pulsars whose rotation rate has slowed down to about one rotation every 0.4 to 10 seconds.

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