Realistic modeling of star formation in cosmological simulations

现代天体物理学最重要的目标之一是详细了解星系的形成和生长。该项目将进一步完善星系中星星团的诞生及其对星系成长的影响的模型。他们将把这些模型包括在对宇宙年龄内宇宙中星系生长的模拟中。这些模型的结果将用于与地面和空间望远镜的未来观测结果进行比较，该项目将在LCDM宇宙学模拟中模拟星系的重子成分。将进行的改进将在ART模拟中将恒星粒子视为星星团，并添加团演化的详细特性及其对局部星际介质的影响。通过这些改进，红移为零的星系放大模型的分辨率可以小到5 pc。通过这些模拟，他们将产生模拟观测目录，这些目录可以与阿尔马、JWST和盖亚的未来观测进行比较，以限制星星形成的特征和模型中的反馈。该奖项反映了NSF的法定使命，并被认为值得通过使用基金会的智力价值和更广泛的影响审查标准进行评估来支持。

One of the most important goals of modern astrophysics is the detailed understanding of the formation and growth of galaxies. This project will add a refinement to models of the birth of star clusters in galaxies and their influence on the growth of the galaxy. They will include these models in simulations of the the growth of galaxies in the universe over the age of the universe. The results of these models will be used to compare with future observations from telescopes on the ground and in space.This project will model the baryonic component of galaxies within LCDM cosmological simulations. The refinement to be made will treat stellar particles within the ART simulation as star clusters and add detailed properties of the evolution of the clusters and their influence on the local interstellar medium. With these refinements, zoom-in models of galaxies at redshifts of zero can have resolutions as small as 5 pc. From these simulations, they will produce simulated observational catalogs that can be compared with future observations from ALMA, JWST, and Gaia in order to constrain features of star formation and feedback within their models.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.