New surveys for supernovae to study Dark Energy

20世纪90年代末，Ia型超新星被用作标准蜡烛，发现宇宙的膨胀速度正在加快，这导致了一些神秘的“暗能量”正在推动宇宙分裂的想法。尽管现在的测量方法有了很大的改进，但我们对暗能量的缺乏仍然是物理学中最基本的问题之一。几个新的望远镜和调查正在计划中来解决这个问题。学生将结合档案超新星数据、最先进望远镜的新数据和模拟数据来研究超新星的统计特性作为距离指示器。在这些研究的基础上，他/她将帮助优化利用未来的望远镜和仪器计划的大型宇宙学调查，如鲁宾天文台、欧空局的欧几里得任务和4MOST(4米多目标光谱仪望远镜)。这个项目将导致这些令人兴奋的望远镜开始运行。

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.