Collaborative Research: Elements: Software: Accelerating Discovery of the First Stars through a Robust Software Testing Infrastructure

协作研究：要素：软件：通过强大的软件测试基础设施加速第一批恒星的发现

• 批准号: 1835421
• 负责人: Bryna Hazelton
• 金额: $ 34.46万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-09-01 至 2022-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1835421&HistoricalAwards=false
• 关键词: Collaborative; Research; Elements; Software; Accelerating

The birth of the first stars and galaxies 13 billions years ago -- our "Cosmic Dawn" -- is one of the last unobserved periods in the history of the Universe. Scientists are working to observe the 21 cm radio light emitted by the primeval neutral hydrogen fog as the first stars formed. These observations are considered one of the grand challenges of modern astrophysics. This project will provide critical software infrastructure for the field of 21 cm cosmology, enabling rapid vetting of the new analyses and techniques developed for these observations and increasing their robustness, rigor, and reproducibility. Under this project The investigators will train students in the best practices for software and code development, preparing them to develop robust, reproducible software for their own research, contribute to large open source projects, and develop software in a professional setting.One of the biggest challenges for the detection of the Epoch of Reionization is the presence of bright astrophysical foregrounds that obscures the signal of interest, requiring extraordinarily precise modeling and calibration of the radio telescopes performing these observations. The 21 cm cosmology community is rapidly developing new techniques for instrument calibration, foreground removal, and analysis, but thorough testing and integration into existing data analysis pipelines has been slow. This project will provide a software infrastructure that can enable rigorous, seamless testing of novel algorithmic developments within a unified framework. This infrastructure will ensure a level of reliability and reproducibility not possible with current tools and accelerate the speed at which developments become integrated into production level code, providing an invaluable foundation for bringing our field into the next decade and for leveraging the current NSF investments in these experiments.This project is supported by the Office of Advanced Cyberinfrastructure in the Directorate for Computer & Information Science & Engineering and the Division of Astronomical Sciences in the Directorate of Mathematical and Physical Sciences.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

第一批恒星和星系130亿年前的诞生 - 我们的“宇宙黎明” - 是宇宙历史上最后一个未观察到的时期之一。科学家正在努力观察原始氢雾发出的21 cm无线电光，因为第一颗恒星形成。 这些观察被认为是现代天体物理学的巨大挑战之一。该项目将为21 cm宇宙学领域提供关键的软件基础架构，从而可以快速审查针对这些观察结果开发的新分析和技术，并提高其鲁棒性，严格性和可重复性。在这个项目下，调查人员将培训学生在软件和代码开发方面的最佳实践，使他们为自己的研究做准备，为自己的研究做准备，为大型开源项目做出贡献，并在专业的环境中开发软件。检测到重新离子时期的最大挑战之一，是对明亮的天体射击的效果，并掩盖了型号的范围，并构成了型号的信号，并构成了型号的信号，精确的模型构成了这些范围，这些轨道是精确的，这些轨道是精确的范围。观察。 21厘米宇宙学界正在迅速开发用于仪器校准，去除和分析的新技术，但是对现有数据分析管道进行彻底的测试和集成一直很慢。该项目将提供一个软件基础架构，可以在统一框架内对新型算法开发进行严格的无缝测试。这种基础架构将确保使用当前工具的可靠性和可重复性水平，并加速发展中的发展速度，为将我们的领域带入下一个十年，并为这些实验的当前NSF投资提供了宝贵的基础，并在这些实验中利用了这些项目。该奖项反映了NSF的法定任务，并被认为是使用基金会的知识分子优点和更广泛的影响评论标准，这是值得支持的。

项目成果

A map of diffuse radio emission at 182 MHz to enhance epoch of reionization observations in the Southern hemisphere

182MHz 的漫射无线电发射图，用于增强南半球再电离观测的时代

• DOI: 10.1093/mnras/stab3276
• 发表时间: 2021
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Byrne, Ruby;Morales, Miguel F.;Hazelton, Bryna;Sullivan, Ian;Barry, Nichole;Lynch, Christene;Line, Jack L. B.;Jacobs, Daniel C.
• 通讯作者: Jacobs, Daniel C.