Collaborative Research: Compact Binary Mergers in the Advanced LIGO Era

最近，随着LIGO引力波天文台探测到引力波，一扇新的宇宙之窗打开了。其他望远镜观测电磁波(包括可见光)，这个新窗口将给我们提供完全不同和互补的信息。这里描述的工作试图更好地理解如何从这些引力波观测中获得最多的信息。特别是，我们研究了中子星和黑洞非常剧烈的合并，以确定这些系统的性质是如何在引力波和电磁波中编码的。该奖项支持的目标是研究致密天体的动力学及其发出的辐射，以从LIGO和类似的探测器获取尽可能多的科学信息。我们将通过计算研究将磁化物质与电阻效应、现实的状态方程、电磁和中微子发射以及r过程核合成结合在一起的二元系统来做到这一点。我们的工作将包括：(I)我们将从这些双星中确定引力波形，重点是从中子星的状态方程、质量和半径方程中观察到的印记。(Ii)我们将研究解析引力波模板和唯象引力波模板的构造。(Iii)我们将研究合并双星的流出情况，以此作为具有特征电磁和中微子信号的事件的指标。(4)我们将研究磁场的全球行为和源自聚结双星磁层的电磁发射，如喷流。

A new window on the universe opened recently with the detection of gravitational waves by the LIGO gravitational wave observatory. Other telescopes observe electromagnetic waves (that includes visible light), and this new window will give us quite different and complementary information. The work described here seeks to understand better how to get the most information from these gravitational wave observations. In particular, we study the very violent merger of neutron stars and black holes to determine how the properties of these systems are encoded in both gravitational and electromagnetic waves. The goals supported by this award are to study the dynamics of compact objects and the radiation they emit to capture the most science possible from aLIGO and similar detectors. We will do so through computational studies of binary systems incorporating magnetized matter with resistive effects, realistic equations of state, electromagnetic and neutrino emission, and r-process nucleosynthesis. Our efforts will include the following: (i) We will determine gravitational waveforms from these binaries, with a focus on observable imprints from the neutron star equation of state, mass, and radius. (ii) We will investigate the construction of analytic and phenomenological gravitational wave templates. (iii) We will study outflows from merging binaries as an indicator of events with characteristic electromagnetic and neutrino signals. (iv) We will study the global behavior of magnetic fields and the electromagnetic emissions, such as jets, that originate in the magnetosphere of coalescing binaries.