论文标题
中子星对连续重力波搜索的正确运动的影响
Effects of proper motion of neutron stars on continuous gravitational-wave searches
论文作者
论文摘要
全天和定向的连续重力波搜索寻找来自未知不对称旋转中子星的信号。这些搜索没有考虑到中子星的适当运动，假设由此引起的信噪比的损失可以忽略不计，并且引入了参数估计中没有偏见。在本文中，我们研究了适当运动对连续波搜索的影响，并且我们证明了参数空间（频率，正确运动，天空位置）和观察时间的哪些区域和观察时间可能是无效的。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。
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.
