COLLABORATIVE RESEARCH: Observing the Epoch of Reionization with the Murchison Widefield Array

合作研究：用默奇森宽场阵列观察再电离时代

• 批准号: 1410719
• 负责人: Judd Bowman
• 金额: $ 20.14万
• 依托单位: Arizona State 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: 2014-08-15 至 2017-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1410719&HistoricalAwards=false
• 关键词: COLLABORATIVE; RESEARCH; Observing; Epoch; Reionization

The investigators in this collaborative proposal will analyze low frequency radio data from the Murchison Widefield Array to detect the spatial power spectrum of fluctuations in the 21 cm signal caused by the first generation of stars and collapsed objects, during an era known as the Epoch of Reionization (EoR). Broader impacts of the work include training of graduate students and postdocs, and engagement of under-represented groups toward careers in science. Community outreach will be undertaken at local urban schools and tribal centers.The observations will have the sensitivity to measure the rise and fall of the EoR power spectrum, placing meaningful constraints on models of reionization and early star formation. These constraints will have impact on the astrophysics community and could influence how JWST observations are interpreted, constrain the optical depth of cosmic microwave background measurements, and aid our understanding of the early universe.

该协作提案中的研究人员将分析来自Murchison广场阵列的低频无线电数据，以检测第一代恒星和倒塌物体引起的21 cm信号中波动的空间功率谱，该时代被称为Reionization时代（eor）。这项工作的更广泛影响包括对研究生和博士后的培训，以及代表性不足的团体参与科学职业。 社区宣传将在当地的城市学校和部落中心进行。这些观察结果将具有衡量EOR功率谱系的兴衰，对Reionization和早期恒星形成的模型构成有意义的限制。 这些限制将对天体物理学群落产生影响，并可能影响JWST观察的解释方式，限制宇宙微波背景测量的光学深度，并帮助我们对早期宇宙的理解。