论文标题
在搜索紧凑型物体碰撞引力波中的高速源定位
High Speed Source Localization in Searches for Gravitational Waves from Compact Object Collisions
论文作者
论文摘要
多门教天文学引起了极大的兴趣。重力波源的定位速度对于电磁随访的成功很重要。尽管当前的重力波源定位方法最多需要几秒钟，但对于某些电磁带来说，即使这还不够。因此，即使它的准确性较低，也需要一种更快的定位方法。我们以多余的功率方法为基础，描述了一种新的定位方法，用于仅在几百毫秒内产生后验概率图。丢失了一些精度，搜索的天空区域大约$ 10 $ $倍。我们可以想象，这种新技术在层次结构方案中发挥了作用，在层次结构方案中，随着更好的分析在较长的时间尺度上完成时，可以迭代地估算快速的早期位置估计。
Multi-messenger astronomy is of great interest. The localization speed of gravitational wave sources is important for the success of electromagnetic follow-up. Although current gravitational wave source localization methods take up to a few seconds, even that is not sufficient for some electromagnetic bands. Therefore, one needs a more rapid localization method even if it is less accurate. Building upon an Excess power method, we describe a new localization method for compact object collisions that produces posterior probability maps in only a few hundred milliseconds. Some accuracy is lost, with the searched sky areas being approximately $10$ times larger. We imagine this new technique playing a role in a hierarchical scheme where fast early location estimates are iteratively improved upon as better analyses complete on longer time scales.
