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（本科院校研究）项目的目标是收集星系光谱数据集，以更好地确定氦相对于氢的原始丰度。 氦丰度校准的改进将对早期宇宙中轻元素的产生模型产生重大限制。这项工作的更广泛影响包括对 STEM 本科生进行科学研究培训。 活动将包括学生夏季研讨会讲座，其他 STEM 学生和家长也将参加。 该计划将利用来自斯隆数字巡天的低金属丰度 HII 星系的光谱，以及 HII 区域发射的集成、自洽模型。该项目旨在减少当前原始氦丰度估计的不确定性并提高准确性。