Probing the Galaxy-Halo/Cosmic Web Interface and Galaxy Evolution

AST-0708210 Churchill该项目是对星系周围动态气体区域的详细研究，目的是研究星系际介质演化和星系反馈的综合作用。 扩展的气体晕是化学富集的、多电离阶段的、天体物理实验室，包含星系演化的物理学，但现有的模拟有已知的缺点，并且缺乏高质量的数据。 两个互补的项目将（1）提供前所未有的详细观测限制的范围，分布，运动学，化学和电离条件，星系晕气体，（2）进行高分辨率模拟分析，既解释这些数据，并对各种星系反馈食谱的限制。 这项工作将积累和分析来自空间和地面档案的最高质量的类星体光谱和星系数据，并获得额外的关键数据。 模拟分析将创建合成类星体吸收线光谱，以与观测数据相同的方式进行分析。 通过宇宙学模拟分析模拟类星体光谱是一种非常有前途的方法来解释晕/宇宙网界面的潜在温度，密度和电离结构，以及星系对化学富集的影响。该项目包括一个创新的全州网络科学课程，旨在鼓励来自新墨西哥州的学生追求技术职业。 该课程将激励学生跨越文化障碍，并鼓励不断发展的航天工业的文化多样性。

AST-0708210ChurchillThis project is a detailed study of the dynamic gaseous regions surrounding galaxies, in order to examine the combined role of intergalactic medium evolution and feedback from galaxies. Extended gaseous halos are the chemically enriched, multi-ionization phase, astrophysical laboratories harboring the physics of galaxy evolution, but existing simulations have known shortcomings, and there is a shortage of high quality data. Two complementary projects will (1) provide unprecedented detailed observational constraints on the extent, distribution, kinematics, and chemical and ionization conditions, of galactic halo gas, and (2) undertake an analysis of high-resolution simulations, both to interpret these data and to place constraints on various galaxy feedback recipes. The work will accumulate and analyze the highest quality quasar spectra and galaxy data from space and ground archives, as well as obtain additional critical data. Analysis of the simulations will create synthetic quasar absorption line spectroscopy to analyze in the same fashion as the observational data. Analysis of mock quasar spectra through cosmological simulation is a highly promising way to interpret the underlying temperature, density, and ionization structure of the halo/cosmic web interface, and the influence of galaxies on chemical enrichment.The project includes an innovative state-wide networked science course designed to encourage under-represented students from the state of New Mexico to pursue technical careers. The class will motivate students to cross cultural barriers and encourage cultural diversity in the growing space flight industry.