多信使演化星族合成模型及其相关研究

多信使将成为天文学研究最重要的方法。引力波信使与演化星族合成模型密切相关，因此我们需要发展多信使演化星族合成模型。它可以进行多信使天体研究和限制演化星族合成模型，但是还没有这样的模型。星族合成方法与星系研究密不可分。观测上已经得到了一些星系的恒星元素丰度二维分布，需要借助星系化学演化模型对其进行详细研究，但以前的模型所含元素种类有限。多信使观测掀起了r-process元素合成研究高潮，推动了星系化学演化模型发展。因此我们打算建立多信使演化星族合成模型(给出双致密天体并合/引力波事件数目和各元素丰度演化)，建立星系的元素丰度.vs.吸收线强度和谱指数响应函数，结合星系二维光谱巡天数据确定多种类型星系的恒星元素丰度二维分布。建立星系化学演化模型，结合星系中恒星元素丰度二维分布，研究或限制它们的形成和演化。

Multi-messenger method will become the most important one in astronomical studies. The gravitational wave messenger is closely related to evolutionary population synthesis (EPS) model, therefore it is necessary to develop multi-messenger EPS model, which can be used in the multi-messenger studies and to constrain EPS model. However, there is no such model. EPS method is closely related to the galaxy studies. The two-dimensional distribution of stellar element abundances in some galaxies has been observed, we need galaxy chemical evolution model to study galaxies in detail. However, the previous models contain only a limited variety of elements. The multi-messenger observation has triggered a climax of r-process element synthesis and promoted the development of galaxy chemical evolution model. Therefore, we intend to build a multi-messenger EPS model (present the numbers for the merger of two degenerate stars/gravitational wave events and the evolution of element abundances), present the response function between element abundances and absorptison line strength and spectral absorption indices for galaxies, determine the two-dimensional distribution of stellar element abundances based on the two-dimensional spectrum sky survey data. We will establish a galaxy chemical evolution model to obtain or constrain the formation and evolution of galaxies.