Collaborative Research: Probing dark matter, dark energy & inflation with 21 cm tomography

合作研究：探测暗物质、暗能量

• 批准号: 0908848
• 金额: $ 24.3万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0908848&HistoricalAwards=false
• 关键词: Collaborative; Research; Probing; dark; matter

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). This project involves experimental and theoretical studies geared toward detection and interpretation of 21-cm neutral hydrogen signatures of the Epoch of Reionization (EOR). The theoretical part of the proposal will quantify how accurately future 21 cm tomography data can constrain the cosmic expansion history and dark energy, the cosmic clustering history and dark matter/neutrino masses, primordial non-Gaussianity, and inflation. The experimental part will study a new concept in this field, a radio telescope with elements on a regular grid that can cut computing requirements significantly by using fast Fourier transforms. This is a highly cost-effective design relative to traditional radio arrays, and the award will fund continued development of a prototype telescope array. Broader impacts of this proposal include training of underrepresented graduate students, undergraduate student projects, and public outreach featuring high school lectures, popular talks, and articles on cosmology.

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。该项目涉及实验和理论研究，旨在探测和解释再电离时代（EOR）的21厘米中性氢特征。该提案的理论部分将量化未来21 cm断层扫描数据如何准确地约束宇宙膨胀历史和暗能量，宇宙聚类历史和暗物质/中微子质量，原始非高斯性和通货膨胀。实验部分将研究这一领域的一个新概念，一个射电望远镜的元素在一个规则的网格，可以削减计算需求显着使用快速傅立叶变换。 相对于传统的无线电阵列，这是一个具有高度成本效益的设计，该奖项将资助继续开发原型望远镜阵列。 这一建议的更广泛的影响包括培训代表性不足的研究生，本科生项目，以及以高中讲座，流行讲座和宇宙学文章为特色的公共宣传。