GABE: Galaxy Assembly with Binary Evolution

作     者：Zhen Jiang Jie Wang Liang Gao Feng-Hui Zhang Qi Guo Lan Wang Jun Pan 

作者机构：Key Laboratory for Computational Astrophysics National Astronomical Observatories Chinese Academy of Sciences Beijing 100101 China School of Astronomy and Space ScienceUniversity of Chinese Academy of SciencesBeijing 100049China Institute of Computational CosmologyDepartment of PhysicsUniversity of DurhamSouth RoadDurham DH1 3LEUK Yunnan ObservatoriesChinese Academy of SciencesKunming 650011China Key Laboratory for the Structure and Evolution of Celestial ObjectsChinese Academy of SciencesKunming 650011 China 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2019年第19卷第10期

页      面：121-137页

核心收录：

学科分类：07[理学] 

基　　金：support from the National Key Program for Science and Technology Research and Development (2015CB857005, 2017YFB0203300) the National Natural Science Foundation of China (Grant Nos. 11390372, 11425312, 11503032, 11573031, 11851301, 11873051, 11573062, 11521303, 11390734, 11573033, 11622325 and 11573030) support from the YIPACAS Foundation (Grant No. 2012048) the Yunnan Foundation (2011CI053) supported by the Newton Advanced Fellowship JP acknowledges support from the National Basic Research Program of China (program 973,2015CB857001) 

主　　题：galaxies formation一galaxies luminosity function, mass function-galaxies stellar content 

摘      要：We developed a new semi-analytic galaxy formation model: Galaxy Assembly with Binary Evolution(GABE). For the first time, we introduce binary evolution into semi-analytic models of galaxy formation by using the Yunnan-Ⅱ stellar population synthesis model, which includes various binary interactions. When implementing our galaxy formation model onto the merger trees extracted from the Millennium simulation, it can reproduce a large body of observational results. We find that in the local universe, the model including binary evolution reduces the luminosity at optical and infrared wavelengths slightly, but it increases the luminosity at ultraviolet wavelengths significantly, especially in FUV band. The resulting luminosity function does not change very much over SDSS optical bands and infrared band, but the predicted colors are bluer, especially when the FUV band is under consideration. The new model allows us to explore the physics of various high energy events related to the remnants of binary stars, such as type Ia supernovae, short gamma-ray bursts and gravitational wave events, and their relation with host galaxies in a cosmological context.