论文标题
FLRW宇宙中红移漂移的动力分析
Dynamical analysis of the redshift drift in FLRW universes
论文作者
论文摘要
红移漂移是一种现象，即在扩展的flrw宇宙中观察到的发射极和观察者之间的红移和观察者之间的红移将慢慢发展 - 在与哈勃时间相当的时间表上。在上一篇文章[JCAP 04（2020）043中； ARXIV 2001.11964]当前的三位作者对FLRW宇宙中的红移漂移进行了commographic分析，暂时抛开了动力学问题（Friedmann方程）。在当前文章中，我们现在添加了动态，仍在精确的FLRW宇宙的框架内。我们将开发合适的通用物质模型，并将其应用于标准FLRW和各种暗能量模型。此外，我们还将介绍一个部分，分析使用替代掌握变量描述红移漂移数据的实用性。
Redshift drift is the phenomenon whereby the observed redshift between an emitter and observer comoving with the Hubble flow in an expanding FLRW universe will slowly evolve -- on a timescale comparable to the Hubble time. In a previous article [JCAP 04 (2020) 043; arXiv 2001.11964] three of the current authors had performed a cosmographic analysis of the redshift drift in a FLRW universe, temporarily putting aside the issue of dynamics (the Friedmann equations). In the current article we now add dynamics, still within the framework of an exact FLRW universe. We shall develop a suitable generic matter model and apply it to both standard FLRW and various dark energy models. Furthermore, we shall also present a section analyzing the utility of using alternative cosmographic variables to describe the redshift drift data.
