CAREER: Stars and Galaxies in the First Billion Years of the Universe

提案ID：AST-0239709机构：宾夕法尼亚州立大学PI：Abel，TomDr.汤姆·阿贝尔将利用他在宾夕法尼亚州立大学的职业奖项直接计算宇宙中第一批恒星的形成和演化。主要目标是逼真地模拟直到零年龄主序的第一批恒星的形成，研究它们对其宿主星系的影响，并得出对可观测特征的现实预测。将开发新的数值技术，包括将三维辐射传输添加到通用自适应网格加密流体动力学程序中。为此目的开发的数值技术将适用于许多其他天体物理问题，如星族I和II的形成、宇宙再电离、星系间介质的化学浓缩、星系形成、超大质量黑洞形成、伽马射线爆发余辉和超新星遗迹。所有新的数字代码都将向科学界发布。除了他的研究之外，阿贝尔博士还将继续为公众制作动画，并利用最先进的沉浸式技术为学生和公众开发可视化效果。他还将开发关于数值天体物理和宇宙学的课程，培训学生应用公共N体和辐射流体动力学代码来模拟各种天体物理现象。

Proposal ID: AST-0239709Institution: Pennsylvania State University PI: Abel, TomDr. Tom Abel will use his CAREER award at the Pennsylvania State University to directly calculate the formation and evolution of the first stars in the universe. The primary goals are to realistically simulate the formation of the first stars up to the zero-age main sequence, study their impact on their host galaxies, and derive realistic predications of observable characteristics. Novel numerical techniques, including the addition of three-dimensional radiative transfer into a general adaptive mesh refinement hydrodynamics code, will be developed. The numerical techniques developed for this purpose will be applicable to a multitude of other astrophysical problems such as the formation of Population I and II stars, cosmological reionization, chemical enrichment of the intergalactic medium, galaxy formation, supermassive black hole formation, gamma ray burst afterglows, and supernova remnants. All new numerical codes will be released to the scientific community.In addition to his research, Dr. Abel will continue to produce animations for the public, and develop visualizations for students and the public that make use of state-of-the-art immersive technology. He will also develop courses on numerical astrophysics and cosmology that will train students to apply public N-body and radiation hydrodynamics codes to model a variety of astrophysical phenomena.