论文标题
银河系二进制引力波信号的全局分析
Global Analysis of the Gravitational Wave Signal from Galactic Binaries
论文作者
论文摘要
银河系超紧凑的二进制文件有望成为Milli-Hertz频带中重力波的主要来源。在几万个时期短的银河系二进制室中，据估计，未来的激光干涉仪太空天线（LISA）将解决几万千万。未解决的剩余将是1-3毫米赫兹之间``噪声''的主要来源。典型的银河二进制文件是合并后数百万年的，因此它们的信号将在丽莎任务的期限内持续存在。提取数万个重叠的银河信号并表征未解决的组件是LISA数据分析的核心挑战，也是对达到频段中所有信号的全局解决方案的关键贡献。在这里，我们提出了用于银河系二进制文件的端到端分析管道，该管道使用跨二维贝叶斯推断，随着数据从LISA星座抵达时，来源的源代码来源。
Galactic ultra compact binaries are expected to be the dominant source of gravitational waves in the milli-Hertz frequency band. Of the tens of millions of galactic binaries with periods shorter than an hour, it is estimated that a few tens of thousand will be resolved by the future Laser Interferometer Space Antenna (LISA). The unresolved remainder will be the main source of ``noise'' between 1-3 milli-Hertz. Typical galactic binaries are millions of years from merger, and consequently their signals will persist for the the duration of the LISA mission. Extracting tens of thousands of overlapping galactic signals and characterizing the unresolved component is a central challenge in LISA data analysis, and a key contribution to arriving at a global solution that simultaneously fits for all signals in the band. Here we present an end-to-end analysis pipeline for galactic binaries that uses trans-dimensional Bayesian inference to develop a time-evolving catalog of sources as data arrive from the LISA constellation.
