论文标题
引力波会发现第一个半河外行星系统吗？
Will Gravitational Waves Discover the First Extra-Galactic Planetary System?
论文作者
论文摘要
引力波打开了一个新的观察窗口，现在可以揭示宇宙中一些最外来物体以及引力本身的一些秘密。在所有这些新发现中，我们最近证明了[N。 Tamanini＆C。Danielski，Nat。 Astron。，3（9），858（2019）]，基于空间的引力波观测将有可能检测到我们银河系中各地的新型大型环形系外行星。在本文中，我们认为这些圆形行星系统也可以在银河系以外，尤其是其卫星星系内检测到。因此，基于空间的引力波观测可能构成检测第一个半乳酸外行星系统的平均值，这是超出标准电磁搜索范围的目标。
Gravitational waves have opened a new observational window through which some of the most exotic objects in the Universe, as well as some of the secrets of gravitation itself, can now be revealed. Among all these new discoveries, we recently demonstrated [N. Tamanini & C. Danielski, Nat. Astron., 3(9), 858 (2019)] that space-based gravitational wave observations will have the potential to detect a new population of massive circumbinary exoplanets everywhere inside our Galaxy. In this essay we argue that these circumbinary planetary systems can also be detected outside the Milky Way, in particular within its satellite galaxies. Space-based gravitational wave observations might thus constitute the mean to detect the first extra-galactic planetary system, a target beyond the reach of standard electromagnetic searches.
