Collaborative Research: Accurate Cosmology with Strong Gravitational Lens Time Delays

合作研究：强引力透镜时间延迟的精确宇宙学

• 批准号: 1312329
• 负责人: Christopher Fassnacht
• 金额: $ 27.42万
• 依托单位: University of California-Davis
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-09-01 至 2017-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1312329&HistoricalAwards=false
• 关键词: Collaborative; Research; Accurate; Cosmology; Strong

The goal of this collaborative projectl is to improve the current measurement of cosmological quantities, in particular the Hubble constant and Dark Energy, using time delay measurements from strong gravitational lenses. This includes analysis of already taken data, as well as the anticipated discovery of approximately 50 new lenses. Gravitational time delays are not only independent of other methods but are also a very cost effective probe, requiring just a few hours on an 8-10m telescope for modeling the lens, and subsequent monitoring on 1m class telescope.Broader impacts of the work include training of graduate students and postdoctoral researchers. At the K-12 level, Dr. Treu collaborates with the Santa Barbara Museum of Natural history (SBMNH) and Las Cumbres Observatories GlobalTelescope Network to organize public lectures, and establish an astronomy curriculum at the UC-operated Sedgwick Natural Reserve. Similarly, Dr. Fassnacht has developed a month-long course for high-school students on the Davis campus as part of the UC COSMOS program.

该协作项目的目的是使用强烈的重力透镜的时间延迟测量值来改善宇宙学数量的当前测量，尤其是哈勃常数和暗能量。这包括对已经处理的数据的分析，以及预期发现大约50个新镜头的发现。 引力时间延迟不仅与其他方法无关，而且是非常有效的探测器，只需要在8-10m的望远镜上几个小时才能建模镜头，随后对1M级望远镜进行监控。工作的影响包括研究生的培训，包括研究生和博士后研究人员。在K-12级，Treu博士与圣塔芭芭拉自然历史博物馆（SBMNH）和Las Cumbres Observatories GlobalTeleScope Network合作，在UC服务的Sedgwick Natural Reserve组织公开讲座，并建立天文学课程。同样，作为UC Cosmos计划的一部分，Fassnacht博士为戴维斯校园的高中生开发了为期一个月的课程。