论文标题
天体物理环境对重力波信号的扭曲
Distortion of Gravitational-wave Signals by Astrophysical Environments
论文作者
论文摘要
Ligo和处女座发现的许多物体都是奇特的,因为它们落在质量范围内,而这些物体在过去被认为不被紧凑的物体视为人体。鉴于天体物理意义的重要性,重要的是首先了解如何从重力波信号中测量其质量。测量的准确性如何?当前模型中是否缺少可能导致偏见的元素?本章致力于这些问题。特别是,我们将重点介绍几个不包括在GW来源的标准模型中,但可能导致质量估计有很大的偏见。这些因素包括强力透镜,源的相对运动,附近的巨大物体和气态背景。
Many objects discovered by LIGO and Virgo are peculiar because they fall in a mass range which in the past was considered unpopulated by compact object. Given the significance of the astrophysical implications, it is important to first understand how their masses are measured from gravitational-wave signals. How accurate is the measurement? Are there elements missing in our current model which may result in a bias? This chapter is dedicated to these questions. In particular, we will highlight several astrophysical factors which are not included in the standard model of GW sources but could result in a significant bias in the estimation of the mass. These factors include strong gravitational lensing, the relative motion of the source, a nearby massive object, and a gaseous background.