Research progress on metrological uses of high precision millisecond pulsar timing data

Details Research progress on metrological uses of high precision millisecond pulsar timing data Research progress on metrological uses of high precision millisecond pulsar timing data

Jun 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002pabei..20..167y&link_type=abstract

Progress in Astronomy (ISSN 1000-8349), Vol. 20, No. 2, p. 167 - 174 (2002)

Astronomy and Astrophysics

Astronomy

2

Time And Frequency, Millisecond Pulsar, Pulsar Time Scale

Scientific paper

We reviewed the research progress on time keeping meterology using millisecond pulsars. Millisecond pulsars exhibit a very stable spinning period, so that their rotational phase may be used as a time reference, named pular time (PT). The analyses of high precision timing data for two millisecond pulsars showed that the long-term stability of TA-PT may be compared to atomic time TA. It is possible that an average pulsar time scale PTens may be deduced through a long-term stability algorithm using precision timing data from more millisecond pulsars. Such an ensemble average can reduce the level of the instabilities originating from individual pulsar and other sources of noise. By comparison between ensemble pulsar time and terrestrial atomic time, one will get some insight on long term stability of atomic time. The orbital motion of close binary pulsar can be used for generation of an astronomical ephemeris time scale BPT. An introduction on the definition of binary pulsar time BPT was given.

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