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arXiv 0709.0135astro-ph
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脉冲星计时的改进太阳风电子密度模型

An improved solar wind electron-density model for pulsar timing

X. P. You, G. B. Hobbs, W. A. Coles, R. N. Manchester, J. L. Han

摘要:

太阳风密度的变化给脉冲星定时观测带来了不同的延迟。目前的脉冲星定时分析程序只能实现简单的太阳风模型,这不仅限制了定时精度,而且会影响脉冲星旋转,天体测量和轨道参数的测量。我们描述了一个新的模型的太阳风电子密度的内容,它使用从太阳磁场的Wilcox太阳天文台观测。我们已经实现了这个模型到tempo 2脉冲星计时包。我们表明,该模型比以前的模型更准确,这些校正是必要的高精度脉冲星定时应用。

英文摘要:

Variations in the solar wind density introduce variable delays into pulsar timing observations. Current pulsar timing analysis programs only implement simple models of the solar wind, which not only limit the timing accuracy, but can also affect measurements of pulsar rotational, astrometric and orbital parameters. We describe a new model of the solar wind electron density content which uses observations from the Wilcox Solar Observatory of the solar magnetic field. We have implemented this model into the tempo2 pulsar timing package. We show that this model is more accurate than previous models and that these corrections are necessary for high precision pulsar timing applications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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