Research on Ensemble Pulsar Time Based on Observed Data |
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Authors: | Ding Chen Xing-zhi Zhu Na Wang |
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Institution: | 1 Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190;2 National Time Service Center, Chinese Academy of Sciences, Xi’an 710600;3 Graduate School of Chinese Academy of Sciences, Beijing 100049;4 Xinjiang Astronomical Observatory, Chinese Acamdemy of Sciences, Urumqi 830011 |
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Abstract: | The applications of pulsar timing to several important aspects are introduced and a skeletal definition of the pulsar time scale is given. By taking advantage of the observational timing data of millisecond pulsars obtained at the Parkes Astronomical Observatory, Australia, the ensemble pulsar time based on 4 millisecond pulsars is built up, the comparison of its stability σz, with that of the atomic time is made, and finally a few of important factors which affect the ensemble pulsar time, as well as their influences on the pulsar timing accuracy and application are analyzed. |
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Keywords: | astrometry time pulsar general |
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