暗能量测量数据管理系统
The Dark Energy Survey Data Management System
摘要:
暗能量调查(DES)是一个项目,其目标是在布兰科望远镜上建造、安装和利用一台新的74 CCD相机,以研究宇宙加速的性质。它将覆盖南半球5000平方度的天空,并将记录3亿个红移1.4的星系的位置和形状。调查将在2012年开始的5年期间使用525个夜晚完成。每晚将产生大约O(1 TB)的原始数据,包括科学和校准图像。DES数据管理系统是为这些数据的处理、校准和存档而设计的。目前正在国家能力自我评估的领导下,由教育评价系统各合作机构共同制定。在这篇文章中,我们描述了系统的基本功能,什么样的科学代码所涉及的和如何数据挑战过程的工作原理,同时提高数据管理系统的算法和科学工作组的分析代码。
英文摘要:
The Dark Energy Survey (DES) is a project with the goal of building, installing and exploiting a new 74 CCD-camera at the Blanco telescope, in order to study the nature of cosmic acceleration. It will cover 5000 square degrees of the southern hemisphere sky and will record the positions and shapes of 300 million galaxies up to redshift 1.4. The survey will be completed using 525 nights during a 5-year period starting in 2012. About O(1 TB) of raw data will be produced every night, including science and calibration images. The DES data management system has been designed for the processing, calibration and archiving of these data. It is being developed by collaborating DES institutions, led by NCSA. In this contribution, we describe the basic functions of the system, what kind of scientific codes are involved and how the Data Challenge process works, to improve simultaneously the Data Management system algorithms and the Science Working Group analysis codes.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。