New surveys for supernovae to study Dark Energy

新的超新星调查研究暗能量

• 批准号: 2731183
• 金额: --
• 依托单位: Lancaster University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2731183
• 关键词: New; surveys; supernovae; study; Dark

In the late 1990s Type Ia supernovae were used as standard candles to discover that the rate of expansion of the universe is accelerating, leading to the idea that some mysterious "dark energy" is pushing the universe apart. Despite much better measurements nowadays, our lack of understanding of dark energy remains one of the most fundamental problems in Physics.Several new telescopes and surveys are being planned to address this issue. The student will use a combination of archival supernova data, new data from state-of-the-art telescopes and simulated data to study statistical properties of supernovae as distance indicators. Based on these studies, he/she will help to optimise large surveys for cosmology that are planned with future telescopes and instruments, such as the Rubin Observatory, ESA's Euclid mission and 4MOST (the 4meter Multi-Object Spectrograph Telescope). This project will lead up to the start of operation of these exciting telescopes.

在20世纪90年代末，Ia型超新星被用作标准烛光，发现宇宙的膨胀速度正在加速，导致了一些神秘的“暗能量”正在推动宇宙分开的想法。尽管现在有了更好的测量方法，但我们对暗能量的了解仍然是物理学中最基本的问题之一。一些新的望远镜和调查正在计划解决这个问题。学生将使用档案超新星数据，来自最先进望远镜的新数据和模拟数据的组合来研究超新星的统计特性作为距离指标。根据这些研究，他/她将帮助优化计划使用未来望远镜和仪器进行的宇宙学大型调查，如鲁宾天文台，欧空局的欧几里得使命和4 MOST（4米多目标光谱望远镜）。该项目将导致这些令人兴奋的望远镜开始运作。