Application of Millisecond Pulsar Timing to the Long-Term Stability of Clock Ensembles

Details Application of Millisecond Pulsar Timing to the Long-Term Stability of Clock Ensembles Application of Millisecond Pulsar Timing to the Long-Term Stability of Clock Ensembles

1995-09-27

arxiv.org/abs/astro-ph/9509133v1

Astronomy and Astrophysics

Astrophysics

16 pages, latex, 9 figures, to be published in Amazing Light, Springer-Verlag Press, 1995

Scientific paper

Terrestrial timescales show instabilities due to the physical limitations of the atomic clocks. Stricter environmental isolation and increased numbers of improved cesium clocks and cavity-tuned hydrogen masers have resulted in time scales more accurate by a factor of about five. The use of different clock ensembles results in measurable changes in some millisecond pulsar timing data. We investigate the possible application of millisecond pulsars to define a precise long-term time standard and positional reference system in a nearly inertial reference frame. Although possible quantitative contribution of the two longest studied millisecond pulsars to terrestrial timescales appears minimal, they may prove useful as independent standards in identifying error sources that are difficult to detect due to the finite lifetime and common reference frame of terrestrial clocks. New millisecond pulsars, perhaps some with even better timing properties, may be discovered as a result of the current global pulsar search efforts.

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