Collaborative Research: A Systematic Search for Sub-Parsec Binary Supermassive Black Holes

这个合作项目的目标是进行系统的搜索亚秒差距超大质量黑洞双星（SBHB）使用作为主要的签名的多普勒频移的气体发射的广泛的发射线是绑定到一个黑洞。发现如此接近的SBHB构成了对预测其存在的星系演化的现代场景的关键测试。该计划还将测试各种其他物理模型，这些模型引用SBHB来解释星系合并后恒星尖点的形成及其质量赤字，以及进动射电喷流和X形射电源的模型。这项工作的更广泛影响包括培训本科生和博士后，通过公开讲座进行推广，以及为非科学天文学学生进行实验室实验。

The goal of this collaborative project is to carry out a systematic search for sub-parsec supermassive black hole binaries (SBHBs) using as the primary signature the Doppler shift of the broad emission lines emitted by gas that is bound to one of the black holes. Finding such close SBHBs constitutes a crucial test of modern scenarios for galaxy evolution that predict their presence. The program will also test a variety of other physical models that invoke SBHBs to explain the formation of stellar cusps after galaxy mergers and mass deficits therein and models for precessing radio jets and X-shaped radio sources.Broader impacts of the work include training of an undergraduate student and a postdoc, outreach via public lectures, and lab experiments for non-scientist astronomy students.