RUI: Helium Abundance Determinations from a Detailed Analysis of Data From the Sloan Digital Sky Survey

RUI：通过对斯隆数字巡天数据的详细分析确定氦丰度

• 批准号: 1413675
• 负责人: Erik Aver
• 金额: $ 3.63万
• 依托单位: Gonzaga University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-09-01 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1413675&HistoricalAwards=false
• 关键词: RUI; Helium; Abundance; Determinations; Detailed

The goal of this RUI (Research at Undergraduate Institutions) project is to assemble a data set of galaxy spectra to better determine the primordial abundance of helium relative to hydrogen. The improved calibration of the helium abundance will place significant constraints on models for the creation of the light elements in the early universe. Broader impacts of the work include training of STEM undergraduate students in scientific research. Activities will include student summer seminar talks that will reach other STEM students, and parents. The program will utilize spectra of low metallicity HII galaxies from the Sloan digital Sky Survey, together with an integrated, self-consistent model for HII region emission. The project aims to reduce uncertainties and improve accuracy relative to current estimates of the primordial helium abundance.

该RUI（本科机构的研究）项目的目标是组装一个数据集，以更好地确定氦相对于氢的原始丰度。 氦丰度的校准得到改善将对早期宇宙中产生光元素的模型产生重大限制。这项工作的更广泛的影响包括对科学研究的STEM本科生的培训。 活动将包括学生夏季研讨会的演讲，这些讲座将吸引其他STEM学生和父母。 该程序将利用Sloan Digital Sky调查的低金属HII星系的光谱，以及用于HII区域排放的集成，自洽的模型。该项目旨在减少相对于原始氦气丰度的当前估计值的不确定性和提高准确性。