基于实测数据的综合脉冲星时研究

A Research on the Ensemble Pulsar Time Based on Observational Data

介绍了脉冲星计时在几个重要方面的应用,给出了脉冲星时间尺度的简要定义.基于澳大利亚PARKES天文台的毫秒脉冲星实测计时数据,建立了基于4颗毫秒脉冲星的综合脉冲星时,并将其稳定度σ_z与原子时进行比较,最后分析了影响综合脉冲星时的几个重要因素及其对脉冲星计时精度的影响与应用.

Several significant applications of pulsar timing have been introduced. The brief definition of pulsar time scale is proposed. The ensemble pulsar time integrated by four millisecond pulsars has been produced based on the observational data observed by Parkes Observatory in Australia. Its stability is compared with atomic time. Four factors influencing the ensemble pulsar time and its effects on timing precision are discussed.