WFAU Science Archives 2023-2026

WFAU科学档案2023-2026

• 批准号: ST/X001865/1
• 负责人: Robert Mann
• 金额: $ 103.27万
• 依托单位: University of Edinburgh
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FX001865%2F1
• 关键词: WFAU; Science; Archives; 2023; 2026

Sky surveys underpin much of modern astronomical research, by providing the most efficient means of deriving samples of observational data required for the study of rare objects and of the properties of populations of sources. The UK has a very strong history in survey astronomy and Edinburgh's Wide Field Astronomy Unit (WFAU) has long been at the forefront of this activity, both since its creation in its current guise, in 1999, and in its previous incarnation, as the UK Schmidt Telescope Unit (UKSTU) of the Royal Observatory Edinburgh.This grant will support WFAU's continuing curation of data from a number of optical/near-infrared imaging and spectroscopic surveys, namely:(i) continuation of the UKIRT Hemisphere Survey and production from it of a new northern-sky optical/NIR survey through incorporation of Pan-STARRS1 optical data; (ii) completion of publication of data from the final VISTA Public Surveys - VHS, VVV(X), UltraVISTA and SHARKs; (iii) creation of a new all-sky near-infrared sky based on the combination of UHS and VHS data; (iv) publication of data from the PRIMER JWST Treasury Program, together with existing ground-based data in the UltraVISTA/COSMOS and UKIDSS/UDS fields; and (v) creation of a new archive to publish data from Galactic and extragalactic surveys being undertaken in guaranteed time by the MOONS Consortium. WFAU adds value to these survey datasets by enabling users to query them in conjunction with external catalogues - either local copies stored in Edinburgh or via the Virtual Observatory. In this, we support multi-wavelength astronomy, which is increasingly the most important mode of observational analysis. WFAU has developed science archive systems which store securely data from sky surveys and make them available to users in a flexible manner via the Internet. The main challenges for WFAU in operating these archives are the volumes of data generated by modern sky survey systems, and the necessity of making the data available to users in a way that helps them to exploit those data scientifically. As data volumes increase, users are no longer able to download to their own computers all the data they want to analyse, so an increasing focus of WFAU work is the development of software to perform a set of basic data analysis tasks within the data centre. Users will be able to run these directly on the sky survey data in WFAU's archives, and then download derived data products, which will be much smaller in size. New capabilities will allow users to analyse data without downloading it, by the running of a Jupyter Hub service next to the data, and an Apache Spark service for VVV(X), both within the IRIS (www.iris.ac.uk) cloud.Ensuring success of the WFAU programme depends on the staff within the Unit having the correct range of skills. While the computational side of WFAU's work is ever increasing, it is important that members of WFAU staff working on science archive project work retain the astronomical expertise required to interact effectively with WFAU's user community.

巡天是现代天文学研究的基础，它提供了获取研究稀有天体和星群性质所需的观测数据样本的最有效手段。英国在巡天天文学方面有着非常悠久的历史，爱丁堡的广域天文学单位（WFAU）长期以来一直处于这一活动的最前沿，无论是在1999年以目前的面貌创建以来，还是在其前身中，作为爱丁堡皇家天文台的英国施密特望远镜单元（UKSTU）。这笔赠款将支持WFAU继续管理来自一些光学/近红外望远镜的数据。红外成像和分光测量，即：㈠继续进行UKIRT半球测量，并通过合并Pan-STARRS 1光学数据，利用该测量制作新的北方天空光学/近红外测量; ㈡完成公布最后VISTA公共测量- VHS、VVV（X）、UltraVISTA和SHARKs的数据; ㈢根据UHS和VHS数据，制作新的全天空近红外天空;（iv）公布来自PRIMER JWST Treasury Program的数据，以及UltraVISTA/COSMOS和UKIDSS/UDS领域的现有地基数据;（v）建立一个新的档案库，公布MOONS联合会在保证的时间内进行的银河和河外勘测的数据。WFAU通过使用户能够与外部目录一起查询这些调查数据集增加了价值-无论是存储在爱丁堡的本地副本还是通过虚拟天文台。在这方面，我们支持多波长天文学，这是越来越重要的观测分析模式。世界天文学和天文学联合会开发了科学档案系统，安全地储存来自天空观测的数据，并通过互联网以灵活的方式提供给用户。WFAU在操作这些档案方面的主要挑战是现代天空测量系统产生的大量数据，以及以帮助用户科学利用这些数据的方式向用户提供数据的必要性。随着数据量的增加，用户不再能够将他们想要分析的所有数据下载到自己的计算机上，因此WFAU工作的一个越来越多的重点是开发软件，以便在数据中心内执行一系列基本数据分析任务。用户将能够直接在WFAU档案中的天空调查数据上运行这些数据，然后下载衍生的数据产品，这些产品的大小要小得多。新的功能将允许用户分析数据而无需下载数据，通过在数据旁边运行一个Apache Hub服务，以及用于VVV（X）的Apache Spark服务，两者都在IRIS（www.iris.ac.uk）云中。确保WFAU计划的成功取决于该部门内的工作人员具有正确的技能范围。虽然WFAU工作的计算方面不断增加，但从事科学档案项目工作的WFAU工作人员必须保留与WFAU用户社区有效互动所需的天文专业知识。