A radio-quiet neutron star is a neutron star that does not seem to emit radio emissions like most other neutron stars.
Most neutron stars are pulsars, and emit radio radiation.
More plausibly however, radio-quiet neutron stars may simply be pulsars which do not pulse in our direction. As pulsars spin, they emit radiation from their magnetic poles. When the magnetic poles do not lie on the axis of rotation, and cross the line of sight of the observer, one can detect radio emission emitted near the star's magnetic poles. Due to the star's rotation this radiation appears to pulse, colloquially called the "lighthouse effect".
Other articles related to "neutron star":
1E 1207.4-5209 RX J185635-3754 RX J0822-4300 in Puppis A supernova remnant RX J0720.4-3125 neutron star in PKS 1209-51/52 supernova remnant Geminga Neutron star Types Radio-quiet Pulsar Single pulsars Rotation-po ...
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“...indeed, star differs from star in glory.”
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