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脉冲星时稳定度及可能应用

  • [设施]:长短波
  • [期刊/会议名称]:时间频率学报
  • [摘要]:The new results of timing observation for millisecond pulsars are introduced. The compar-isons between the frequency stabilities for atomic time and pulsar time are presented. It is point-ed out that the frequency stability for pulsar time is limited by the timing errors. Some schemes to reduce the timing error are discussed. With the implementing of the millisecond pulsar timing array (PTA) ,the application of pulsar time will become possible in the near future. The possible application may include time keeping by combining of millisecond pulsar with atomic clocks, constructing an ensemble pulsar time scale, detecting the error in atomic time scale via PTA and so on. Abstract:给出了毫秒脉冲星长期计时观测最新结果和脉冲星时与原子时频率稳定度的比较。指出脉冲星时频率稳定度的提高受到计时观测误差的限制,讨论了提高毫秒脉冲星计时观测精度的方法。随着脉冲星计时阵的实施,脉冲星时的应用已为期不远。可能的应用包括毫秒脉冲星与原子钟结合守时、建立综合脉冲星时和用脉冲星计时阵检测原子时误差等方面。
  • [发表日期]:2004
  • [第一作者]:杨廷高
  • [第一作者单位]:国家授时中心
  • [通讯作者]:杨廷高
  • [通讯作者单位]:国家授时中心
  • [论文类型]:期刊论文
  • [期刊分类]:CSCD
  • [学科分类]:
  • [影响因子]:
  • [关键词]:atomic time; pulsar time; long stability; pulsar time application
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