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Stability of pulsar rotational and orbital periods

Published online by Cambridge University Press:  21 October 2010

Sergei Kopeikin
Sergei Kopeikin*
Affiliation:
Department of Physics and Astronomy, University of Missouri, Columbia, MO 65211, USA email: kopeikins@missouri.edu
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Abstract

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Millisecond and binary pulsars are the most stable astronomical standards of frequency. They can be applied to solving a number of problems in astronomy and time-keeping metrology including the search for a stochastic gravitational wave background in the early universe, testing general relativity, and establishing a new time-scale. The full exploration of pulsar properties requires that proper unbiased estimates of spin and orbital parameters of the pulsar be obtained. These estimates depend essentially on the random noise components present in pulsar timing residuals. The instrumental white noise has predictable statistical properties and makes no harm for interpretation of timing observations, while the astrophysical/geophyeical low-frequency noise corrupts them, thus, reducing the quality of tests of general relativity and decreasing the stability of the pulsar time scale.

Keywords

standardstimepulsars: general
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Highlights H15: Highlights of Astronomy , November 2009 , pp. 226 - 227
Copyright
Copyright © International Astronomical Union 2010

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