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arXiv 1612.02004astro-ph.COgr-qc
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透镜引力波的多信使时间延迟

Multi-Messenger Time Delays from Lensed Gravitational Waves

Tessa Baker, Mark Trodden

摘要:

我们研究了高能天体物理事件的潜力,从中检测到无质量和大质量信号,以探索基础物理。特别是,我们考虑如何强大的引力透镜可以引起时间延迟的多个信使信号来自同一个来源。明显的信使例子是无质量的光子和引力波,以及大质量的中微子,尽管也可以想象更奇特的应用,如大质量的引力子或轴子。有质量和无质量粒子的不同传播时间原则上可以确定中微子总质量的界限,并探测宇宙学参数。虽然测量这种效应可能会带来重大的实验挑战,但我们认为,"巨大的时间延迟"代表了一种未经探索的基本物理现象。

英文摘要:

We investigate the potential of high-energy astrophysical events, from which both massless and massive signals are detected, to probe fundamental physics. In particular, we consider how strong gravitational lensing can induce time delays in multi-messenger signals originating from the same source. Obvious messenger examples are massless photons and gravitational waves, and massive neutrinos, although more exotic applications can also be imagined, such as to massive gravitons or axions. The different propagation times of the massive and massless particles can, in principle, place bounds on the total neutrino mass and probe cosmological parameters. Whilst measuring such an effect may pose a significant experimental challenge, we believe that the `massive time delay' represents an unexplored fundamental physics phenomenon.

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