Feedback Processes of Low Metallicity Protogalaxy Analogs

Jacqueline Monkiewicz被授予NSF天文学和天体物理学博士后奖学金，在亚利桑那州立大学和新墨西哥州州立大学进行研究和教育计划。她将使用附近星系的观测结果，这些星系是早期宇宙中星系的类似物，以研究紫外线和X射线光如何有效地从这些星系逃逸到星系际介质中。这些信息将提供洞察第一个星系如何电离早期宇宙中的中性氢。除了这项研究，她将开发工具，向盲人和视障观众展示天文学。 拟议的研究计划旨在促进我们对早期宇宙再电离时代的理解。早期星系电离光子的逃逸率是理解再电离的重要组成部分。该项目将使用一个特定的低红移矮星系群，这些矮星系被认为是高红移莱曼α发射体的类似物。该项目将通过光谱学使用电离映射来研究影响逃逸分数的物理过程。对于她工作的教育部分，Monkiewicz将开发一个有声天空智能手机应用程序和一个便携式触觉天文馆为盲人和视障人士。这个奖项反映了NSF的法定使命，并已被认为是值得通过评估使用基金会的智力价值和更广泛的影响审查标准的支持。

Jacqueline Monkiewicz is awarded an NSF Astronomy and Astrophysics Postdoctoral Fellowship to conduct a program of research and education at Arizona State University and New Mexico State University. She will use observations of nearby galaxies that are analogs of galaxies in the early universe to study how efficiently ultraviolet and X-ray light can escape into the intergalactic medium from these galaxies. This information will provide insight into how the first galaxies ionized the neutral hydrogen in the early universe. Alongside this research, she will develop tools for presenting astronomy to blind and visually impaired audiences. The proposed research program seeks to advance our understanding of the epoch of reionization in the early universe. The escape fraction of ionizing photons from early galaxies is an important component to better understanding reionization. This project will use a particular low-redshift population of dwarf galaxies that are considered to be analogs of high-redshift Lyman-alpha emitters. The project will use ionization mapping through spectroscopy to study the physical processes that affect the escape fraction. For the educational component of her work, Monkiewicz will develop a sonified sky smartphone app and a portable tactile planetarium for the blind and visually impaired.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.