The Role of Heating and Enrichment in the Formation of Large-Scale Structure

加热和富集在大规模结构形成中的作用

• 批准号: 0104415
• 负责人: Evan Scannapieco
• 金额: $ 12.28万
• 依托单位: Scannapieco Evan S
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-07-01 至 2004-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0104415&HistoricalAwards=false
• 关键词: Role; Heating; Enrichment; Formation; Large

MPS-0104415Evan ScannapiecoDr. Scannapieco will carry out a program of research as an MPS Distinguished International Postdoctoral Research Fellow at the Osseratorio Astrofisico di Arcetri, Italy, and the Institut d'Astrophysique, Paris. His theoretical and observational program will examine heating and enrichment processes in the Universe and their impact on the formation of large-scale structure. The observational program will carry out the most accurate spectroscopic examination of distant outflows yet undertaken, as well as a search for heated gas around distant galaxies in the Hubble Deep Field. The observational research will be complemented by three closely related theoretical projects: 1) a detailed numerical study of galaxy outflows that will help to better quantify the role outflows play in the thermal and enrichment history of the diffuse gas from which all galaxies form, 2) a study of how this enrichment history can be related to the metal distribution in the stars of our own galaxy, and 3) a numerical study of the impact of outflows on the cosmic microwave background radiation, one of the most sensitive probes of the heating and ionization history of the Universe. This research is funded through the Office of Multidisciplinary Activities in the Directorate for Mathematical and Physical Sciences.***

MPS-0104415Evan ScannapiecoDr. Scannapieco将作为MPS杰出国际博士后研究员在意大利Osseratorio Astrofisico di Arcetri和巴黎天体物理研究所开展研究计划。 他的理论和观测计划将研究宇宙中的加热和浓缩过程及其对大尺度结构形成的影响。 该观测计划将对遥远的外流进行迄今为止最精确的光谱检查，并在哈勃深场中寻找遥远星系周围的加热气体。 观测研究将由三个密切相关的理论项目补充：1）对星系外流进行详细的数值研究，这将有助于更好地量化外流在所有星系形成的扩散气体的热和富集历史中所起的作用，2）研究这种富集历史如何与我们自己星系恒星中的金属分布有关，（3）外流对宇宙微波背景辐射影响的数值研究，这是研究宇宙加热和电离历史最敏感的探测之一。这项研究由数学和物理科学局多学科活动办公室资助。