Galaxy shape measurements and intrinsic alignments: reducing the impact of weak lensing systematic errors

这项建议的目标是在数据分析和理论理解方面发展宇宙学弱透镜的先进技术。这项工作的重点是减轻影响暗能量测量到1%以下的几个系统不确定性。开发的方法对于解释即将到来的透镜测量的结果将是重要的，例如计划用于美国国家科学基金会S大型天文测量望远镜(LSST)的方法，这是2010年十年测量的最高地面优先事项。这项工作的更广泛影响包括培训一名博士后和一名研究生，以及向天文公众发布弱透镜分析软件。国际和平协会将在阿勒格哈尼天文台和少数民族中学生中讲课。

This goal of this proposal is to develop advanced techniques in weak lensing for cosmology, in both data analysis and theoretical understanding. The work focuses on mitigating several systematic uncertainties that affect dark energy measurements to below the 1% level. The methods developed will be important for interpreting the results of upcoming lensing surveys, such as the one planned for NSF?s Large Synoptic Survey Telescope (LSST), the top ground-based priority of the 2010 Decadal Survey. Broader impacts of the work include training of a postdoc and a graduate student, and release of weak lensing analysis software to the astronomical public. The PI will give lectures at Alleghany Observatory and to minority middle-school students.