The Deep Lens Survey

深度透镜调查

• 批准号: 0307714
• 负责人: J. Anthony Tyson
• 金额: $ 36.33万
• 依托单位: Nokia of America Corporation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-08-15 至 2004-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0307714&HistoricalAwards=false
• 关键词: Deep; Lens; Survey

AST-0307714TysonThe Deep Lens Survey (DLS) is a deep multi-band imaging survey of seven, four-square-degree fields, with all data made public. The primary scientific driver is weak gravitational lensing, but the survey also enables other investigations, such as optical transient phenomena, whose existence is publicized within about an hour of the observation. It allows the definition of mass-selected clusters of galaxies and of mass concentrations in three dimensions, and the final combination of cosmic shear and cluster counting will place sharp limits on cosmological parameters, and is complementary to other probes. The DLS is the first NOAO Survey to release both images and calibrated photometric catalogs, is 70% complete, and so far has been largely privately funded. This specific public support is for otherwise un-funded team members to complete the Survey and release the final products, building on the progress so far.Algorithms developed for the DLS have wider applicability, and the released data products are already in use for both formal and informal education at several levels, including high schools and museums. The DLS is also a useful learning tool for the Large Synoptic Survey Telescope, a priority in the decadal survey report summarizing the astronomical community's consensus of priorities.***

深透镜调查（DLS）是一项深度多波段成像调查，涉及7个4平方度的场，所有数据都是公开的。主要的科学驱动力是弱引力透镜效应，但这项调查也使其他研究成为可能，比如光学瞬变现象，这种现象的存在在观测后大约一个小时内就会被公布。它允许在三维空间中定义大量选择的星系团和质量集中，宇宙剪切和星系团计数的最终组合将对宇宙学参数施加严格的限制，并且是对其他探测器的补充。DLS是第一个同时发布图像和校准的光度目录的NOAO调查，完成了70%，到目前为止主要由私人资助。这种特定的公共支持是为没有资金支持的团队成员提供的，以完成调查并发布最终产品，建立在目前的进展基础上。为DLS开发的算法具有更广泛的适用性，发布的数据产品已经在几个级别的正规和非正规教育中使用，包括高中和博物馆。DLS也是大型综合巡天望远镜（Large synotic Survey Telescope）的一个有用的学习工具，在总结天文学界共识的十年巡天报告中，DLS是一个优先项目