面向引力波天空的相位一致性映射的综合框架
摘要
我们提出了一种针对脉冲计时阵列的相位一致性映射技术的实际实现，解决了引力波天空的完整复极状态作为函数随方向和频率的表示。与标准交叉相关方法不同，此方法保留了数据中每个天像像素处的振幅、相位和极化。 resulting maps constitute a compact, minimally processed summary of the data from which all subsequent analyses -- characterisation of a stochastic background, searches for anisotropy, and identification of individual sources -- can be derived within a single unified framework. Our implementation is fully compatible with established pulsar timing data analysis methods. We validate the framework through a series of realistic simulations with varying array configurations, noise properties, and signal types. We demonstrate robust recovery of source amplitudes and sky locations across different scenarios, and discuss the impact of polarisation leakage, noise, and direction-dependent array sensitivity on the recovery of astrophysical signals.
引用
@article{arxiv.2604.19073,
title = {A comprehensive framework for phase-coherent mapping of the gravitational-wave sky with pulsar timing arrays},
author = {Małgorzata Curyło and Eric Thrane and Paul D. Lasky and Dawson S. Gaynor},
journal= {arXiv preprint arXiv:2604.19073},
year = {2026}
}
备注
19 pages, 7 figures, submitted for publication in ApJ