Probing Dark Energy with Type 1a Supernovae

用 1a 型超新星探测暗能量

• 批准号: 1009457
• 负责人: Joshua Frieman
• 金额: $ 41.94万
• 依托单位: University of Chicago
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-15 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1009457&HistoricalAwards=false
• 关键词: Probing; Dark; Energy; Type; 1a

The aim of this project is to carry out a comprehensive analysis of all the recently completed Supernova Type Ia (SN Ia) surveys and derive robust cosmological constraints from them. The investigators will collaborate with theorists developing state-of-the-art 3-d simulations of SN Ia explosions to test the models against observational data, with the long-term goal of developing theoretically-informed SN distance estimates. In addition, the project will optimize the design of and develop new analysis tools for future large SN surveys, in particular developing methods for SN cosmology analysis without spectroscopic identification or redshifts. All these tools will be part of a flexible, public software package, SNANA, that the proposers have and will continue to develop and share with the community.Broader impacts of the work include training of undergraduate and graduate students, incorporating supernova data into Google Sky, release of software for use by the community, and development of undergraduate astronomy labs.

这个项目的目的是对最近完成的所有超新星Ia型(SN Ia)调查进行全面分析，并从这些调查中得出强有力的宇宙学约束。研究人员将与理论家合作，开发最先进的SN Ia爆炸的3-d模拟，以针对观测数据测试模型，长期目标是开发理论上知情的SN距离估计。此外，该项目将为未来的大型SN调查优化设计和开发新的分析工具，特别是开发无需光谱识别或红移的SN宇宙学分析方法。所有这些工具都将是一个灵活的公共软件包SNNA的一部分，该软件包的提出者已经并将继续开发并与社区共享。这项工作的广泛影响包括培训本科生和研究生，将超新星数据纳入Google Sky，发布供社区使用的软件，以及发展本科天文实验室。