Timing Noise

Timing Noise

A pulsar (portmanteau of pulsating star) is a highly magnetized, rotating neutron star that emits a beam of electromagnetic radiation. This radiation can only be observed when the beam of emission is pointing toward the Earth, much the way a lighthouse can only be seen when the light is pointed in the direction of an observer, and is responsible for the pulsed appearance of emission. Neutron stars are very dense, and have short, regular rotational periods. This produces a very precise interval between pulses that range from roughly milliseconds to seconds for an individual pulsar.

The precise periods of pulsars makes them useful tools. Observations of a pulsar in a binary neutron star system were used to indirectly confirm the existence of gravitational radiation. The first extrasolar planets were discovered around a pulsar, PSR B1257+12. Certain types of pulsars rival atomic clocks in their accuracy in keeping time.

Read more about Timing Noise:  Discovery, Nomenclature, Formation, Categories, Applications, Significant Pulsars, See Also

Other articles related to "timing noise":

Rotation-powered Pulsars - Applications - Precise Clocks
... Timing noise is the name for rotational irregularities observed in all pulsars ... This timing noise is observable as random wandering in the pulse frequency or phase ... It is unknown whether timing noise is related to pulsar glitches ...

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