Methods for calibrating a cesium atomic clock using a pulsar time-scale

Linlin Wang

doi:10.1093/mnras/staf571

2025-05-07

王林林 (Linlin Wang)

Zhehao Zhang

Minglei Tong *

DOI：10.1093/mnras/staf571

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摘要

En 中文

某些毫秒脉冲星表现出极高的旋转稳定性，这可以形成基于脉冲星的时间尺度。我们采用了后校正方法，评估脉冲星时间尺度（PT）作为时间参考以校准铯钟频率、获取更精确时间信号的可行性。从国际脉冲星计时阵（PTA）的首批数据发布中，我们选择了PSR J1909-3744和PSR J1713+0747作为实验对象，构建不同的脉冲星时间尺度。我们研究了检测铯钟相对频率偏差的三种方法，并考虑了四种不同的频率校正周期。结果表明，不同脉冲星在频率校正方面具有不同特性，而建立的脉冲星时间尺度集合（EPT）更为可靠。对于最佳方法，由建立的EPT提供的频率校正精度可与国际计量局（Bureau International des Poides et Measures）发布的地球时（TT）提供的精度相媲美。这表明PT在长期频率校正方面具有潜力，能够提升时间实验室的长期守时能力。

Keyword:

methods: data analysis

time

pulsars: individual: PSR J1909-3744, PSR J1713+0747

期刊

Monthly Notices of the Royal Astronomical Society

IF:

4.8

论文数:

7.1W

被引数:

25.0W

机构

暂无机构信息

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