How can millisecond pulsars improve the long term stability of atomic time scales?

Details How can millisecond pulsars improve the long term stability of atomic time scales? How can millisecond pulsars improve the long term stability of atomic time scales?

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992esasp.340...57p&link_type=abstract

In ESA, Frequency and Time Forum p 57-60 (SEE N93-24978 09-70)

Astronomy and Astrophysics

Astronomy

5

Algorithms, Pulsars, Stability, Time, Time Measurement, Atomic Clocks, Celestial Reference Systems, Computerized Simulation, Metrology, Radio Astronomy, Statistical Analysis

Scientific paper

The use of millisecond pulsars to improve the long term stability of atomic time scales is addressed. Millisecond pulsars are galactic objects that exhibit a very stable period of rotation. Since the first discovery in 1982, radioastronomers have carried out timing observations, which measure the time of arrival of the radio pulses relative to an atomic time scale. Several tens of millisecond pulsars have now been discovered, located in different parts of the sky. If they are observed regularly for many years, they can be considered as an ensemble of clocks, which although they are affected by frequency drifts, allow an average time scale to be deduced through a stability algorithm. The basis for such an algorithm is presented and applied to simulated pulsar data. The properties of the resulting time scale and how it could monitor the stability of the atomic time scale are discussed.

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