Collaborative Research: Accurate Cosmology with Strong Gravitational Lens Time Delays

这个合作项目的目标是改进目前对宇宙学量的测量，特别是哈勃常数和暗能量，使用强引力透镜的时间延迟测量。这包括对已采集数据的分析，以及预计发现的约50种新镜片。 引力时间延迟不仅独立于其他方法，而且是一种非常经济有效的探测方法，只需在8- 10米望远镜上花费几个小时来模拟透镜，然后在1米级望远镜上进行监测。在K-12级别，Treu博士与圣巴巴拉自然历史博物馆（SBMNH）和Las Cumbres天文台全球望远镜网络合作，组织公开讲座，并在加州大学运营的塞奇威克自然保护区建立天文学课程。同样，Fassnacht博士为戴维斯校区的高中生开发了一个为期一个月的课程，作为UC COSMOS计划的一部分。

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.