CAREER: Reionization 2020: Fast Radiative Transfer Simulations for the Era of JWST and Extremely Large Telescopes

在再电离时期，第一批星系形成，它们之间的氢气被电离。达洛伊西奥博士和他的团队将开发软件来模拟这个时代，以便更好地了解最早星系中的恒星形成。达洛伊西奥博士和一个本科生团队将建造一个射电望远镜，用于天文学教育和推广。他们将为中学生举办讲习班。学生们将使用望远镜观察银河系中原子氢气云的射电发射，并将通过数据分析和解释进行指导。这种真实的体验旨在培养对科学的终身兴趣。柔性辐射传输代码（FlexRT）将是一个开源的快速自适应射线追踪辐射传输代码。FlexRT将对参数空间研究进行优化，其体积可达1立方千兆秒差距，并将使用动态子网格模型来捕获星系间吸收的影响。该团队将研究再电离时代星系的特性与它们的宇宙环境之间的关系，以及星系间吸收系统如何调节再电离的全局形态和演化。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

During the Epoch of Reionization the first galaxies formed and the hydrogen gas between them was ionized. Dr. D’Aloisio and his group will develop software to simulate this epoch to better understand star formation in the earliest galaxies. Dr. D’Aloisio and a team of undergraduate students will build a radio telescope for astronomy education and outreach. They will host workshops for middle school students. The students will use the telescope to observe radio emission from clouds of atomic hydrogen gas in the Milky Way and will be guided through the analysis and interpretation of the data. This authentic experience is designed to foster a life-long interest in science.The Flexible Radiative Transfer code (FlexRT) will be an open-source fast adaptive ray tracing radiative transfer code. FlexRT will be optimized for parameter space studies with up to 1 cubic Giga-parsec volume and will use a dynamic sub-grid model to capture the effects of intergalactic absorption. The team will investigate how the properties of reionization-era galaxies relate to their cosmological environments, and how intergalactic absorption systems regulate reionization’s global morphology and evolution.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.