论文标题

改进了连续重力波的短段检测统计

Improved short-segment detection statistic for continuous gravitational waves

论文作者

Covas, P. B., Prix, R.

论文摘要

连续的引力波代表尚未检测到的长期以来的信号之一。由于它们的幅度很小,必须一起分析长期观察数据集(几个月年),从而大大增加了这些搜索的计算成本。全天空搜索面临着最严重的计算障碍,尤其是在未知二进制系统中搜索源,这些二进制系统需要将数据分解为非常短的段,以便在计算上可行。在本文中,我们提供了一个新的检测统计量,与标准$ \ Mathcal {f} $ - 细分市场的统计量相比,该统计量最多可提高19%。

Continuous gravitational waves represent one of the long-sought types of signals that have yet to be detected. Due to their small amplitude, long observational datasets (months-years) have to be analyzed together, thereby vastly increasing the computational cost of these searches. All-sky searches face the most severe computational obstacles, especially searches for sources in unknown binary systems, which need to break the data into very short segments in order to be computationally feasible. In this paper, we present a new detection statistic that improves sensitivity by up to 19% compared to the standard $\mathcal{F}$-statistic for segments shorter than a few hours.

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