arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.00983astro-ph.IMgr-qc
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中子星自行对连续引力波搜索的影响

Effects of proper motion of neutron stars on continuous gravitational-wave searches

P. B. Covas

摘要:

全天空和定向连续引力波搜索寻找来自未知非对称旋转中子星的信号。这些搜索不考虑中子星的自行,假设由此引起的信噪比损失可以忽略不计,并且在参数估计中没有引入偏差。在本文中,我们研究的效果,自行连续波搜索,我们显示了哪些区域的参数空间(频率,自行,天空位置)和观测时间,这个假设可能是无效的。我们还计算了这些搜索可以实现的适当运动参数估计的相对不确定性。

英文摘要:

All-sky and directed continuous gravitational-wave searches look for signals from unknown asymmetric rotating neutron stars. These searches do not take into account the proper motion of the neutron star, assuming that the loss of signal-to-noise ratio caused by this is negligible and that no biases in parameter estimation are introduced. In this paper we study the effect that proper motion has on continuous wave searches, and we show for what regions of parameter space (frequency, proper motion, sky position) and observation times this assumption may not be valid. We also calculate the relative uncertainty on the proper motion parameter estimation that these searches can achieve.

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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