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现状与研究进展

The Chinese V IRTUAL O BSERVATORY. IVO. 现状与研究进展. 崔辰州 China-VO Project 中科院国家天文台. 报告内容. 虚拟天文台历史与现状 国际虚拟天文台联盟（ IVOA） 中国虚拟天文台（ China-VO）. VO concept.

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现状与研究进展

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  1. The Chinese VIRTUAL OBSERVATORY IVO 现状与研究进展 崔辰州 China-VO Project 中科院国家天文台 China-VO 2005

  2. 报告内容 • 虚拟天文台历史与现状 • 国际虚拟天文台联盟（IVOA） • 中国虚拟天文台（China-VO） China-VO 2005

  3. VO concept • Virtual Observatory (VO) is a data-intensively online astronomical research and education environment, taking advantages of advanced information technologies to achieve seamless, global access to astronomical information. • The power of the World Wide Web is its transparency. It is as if all the documents in the world are inside your PC. The idea of the Virtual Observatory is to achieve the same transparency for astronomical data and other related information (Quinn et al. 2004). China-VO 2005

  4. VO concept (cont.) • The VO is: • A set of international standards to share complex data • A modular set of tools to work with distributed data • A simple environment to publish data to • An essential part of the research astronomer’s toolkit • A catalyst for world-wide access to astronomical archives • A vehicle for education and public outreach • The VO is not: • A replacement for building new telescopes • A centralized repository for data • A data quality enforcement organization China-VO 2005

  5. VO历史回顾 • 1990s:NASA成立了按波长划分的科学数据中心，多个地基数字巡天项目开始 • 1999年4月, 美国理论、计算和数据发现十年规划调研专家组成立 • Szalay, Prince, Alcock 提出 “National Virtual Observatory”的概念 • 1999年11月, NVO 在JHU组织研讨会 • 2000年2月, 第二届 NVO 研讨会在NOAO召开 • 2000年6月, “Virtual Observatories of the Future”在Caltech召开，褚耀泉参加会议 • 2001年2月, “新千年的天文学与天体物理学”发表 • 2001年9月, 美国NSF 宣布对NVO项目的资助 • 2002年6月，国际虚拟天文台联盟成立 China-VO 2005

  6. International VO Alliance China-VO 2005

  7. International VO Alliance • The IVOA brings together the astronomers, developers, and managers of the VO initiatives world-wide • Agreements on standards for data access (VOTable, catalog queries, image retrieval, resource descriptions, etc.) • Coordination of development activities • Sharing of software • Sharing of experience China-VO 2005

  8. International VO Alliance China-VO 2005

  9. International VO Alliance • Working Groups • Resource Registry, Content Descriptors (UCD), Data Modeling, Data Access Layer, VO Event, VO Query Language, Grid & Web Services, Standards & Processes, VOTable • Interest Groups • Architecture, Applications, Theory, GGF Astro-RG, Data Curation & Preservation • Specifications • VOTable, Resource Metadata, ADQL, VOEvent, Space-Time Coordinate, SkyNodeInterface, SIA, SSA, etc. • http://www.ivoa.net/Documents/latest/ China-VO 2005

  10. IVOA Roadmap China-VO 2005

  11. IVOA Events China-VO 2005

  12. AstroGrid: Science Use ReadyNicholas WaltonAstroGrid Project ScientistIoA, Cambridge A PPARC funded project China-VO 2005

  13. First Science Paper from VO • A&A 424, 545-559 (2004) Discovery of optically faint obscured quasars with Virtual Observatory tools • The AVO science team discovered 31 previously undetected powerful supermassive black holes in the so-called GOODS (Great Observatories Origins Deep Survey) fields. China-VO 2005

  14. Second Science Paper from VO • Accepted by A&A • Luminous AGB stars in nearby galaxies: A study using Virtual Observatory tools • Searching for very luminous AGB stars with J − Ks > 1.5 mag and H − Ks > 0.4 mag in the LMC, SMC, M31, and M33 from 2MASS data. China-VO 2005

  15. The Next Steps: Participant in VO Science Demos 2005 • AstroGrid: Consortium meeting: Today. 14 Dec 2004 • Galaxy distances • Brown dwarf discovery • Solar coronal mass ejections • Euro-VO: ESAC, Madrid: 25-26 Jan 2005 • Star formation histories • AGB to PN transitions • A Widening range of capabilities, data, applications • Increasing scientific usefulness • GOAL: end 2005 – science papers enabled by VO China-VO 2005

  16. Next Steps: 2005-2007 • AstroGrid at the thresh hold of enabling significant science • Prioritisation on automating bulk workflows and data access • Working in partnership to link to additional functionality • Key science programmes for AstroGrid to 2007 and AstroGrid in the Euro-VO being formulated • Focus on supporting major new (<2007) data flows • e.g. VISTA, Planck, Herschel, VLT • Science is a major driver in AG2 and VOTECH (Euro-VO) • GOAL: 2010 for >90% of all science to be VO enabled China-VO 2005

  17. IVO Highlights (I) • AstroGrid V1.0 (2005.5) • The first public release of VO infrastructure • MySpace, Workflow, Query Builder, Job Monitor, Resource querying • TopCat and Aladin • Science Services: Solar Movie Maker, and Redshift Maker • AstroGrid V1.1 (Sep, 2005) • Science Services - Color Cutter, and AstroScope • more robust and reliable • better documentation • http://www.astrogrid.org/release/ China-VO 2005

  18. IVO Highlights (II) • Aladin v3.0 multiview: • an interactive software sky atlas developed by CDS • MultiView, multiProjection • Resampling • Blinking: builds on the fly image sequences (slow movies) • GIF, JPEG and PNG support • Cut graph: along any segment • Cross match algorithm: for better object catalog analysis China-VO 2005

  19. IVO Highlights (III) • US-VO: DataScope • Discover and Explore Data in the Virtual Observatory • discover information available on a given source and location • Astronomical Data Grid • http://heasarc.gsfc.nasa.gov/cgi-bin/vo/datascope/init.pl China-VO 2005

  20. VOs • European Space Agency VO • Urania Astrophysical Virtual Observatory • Spectroscopic Virtual Observatory • Virtual Solar-Terrestrial Observatory • Planetary Virtual Observatory and Laboratory • Virtual Solar Observatory • Virtual Auroral Observatory • Virtual Heliospheric Observatory China-VO 2005

  21. “中国虚拟天文台”（China-VO） • 为中国天文学家提供使用国际数据的先进平台和门户 • 从国际上获取数据和相关技术 • 将我们的数据提供给天文学界 • 未来：LAMOST、SST、FAST • 目前：BATC、太阳磁场、216… • 过去：天文底片（？） • 培养新一代面向“虚拟天文台”的科技队伍 • 交叉学科和公众教育 China-VO 2005

  22. China-VO重点研发领域 • China-VO系统平台建设 • 国内外天文数据的统一访问 • 现有天文工具的虚拟天文台集成 • 虚拟天文台基础上的公众教育 • 天文设备的虚拟天文台集成 China-VO 2005

  23. China-VO发展史 • 2001.11 首次中国虚拟天文台研讨会 • 2002.7 “China-VO”概念提出 • 2002.10 “China-VO”成为IVOA成员 • 2003.2 第一个grid service, “Hello China-VO”开发完成 • 2003.5 China-VO “ConeSearch”服务成功完成 • 2003.6 China-VO系统设计 • 2003.9 第二届中国虚拟天文台研讨会 • 2003.10 China-VO 第二个GS初步实现 • 2003.11 IVOA Small Projects Meeting • 2004.5 VOFilter开发完成 • 2004.9 IVOA Small Projects Meeting （印度） • 2004.12 第三届中国虚拟天文台研讨会（武汉） • 2005.11 China-VO 2005 China-VO 2005

  24. China-VO annual meetings • 2001. 9. 3-4 北京 • 2003. 9. 25-26 北京 • 2004. 12.1-5 武汉 • 2005. 11.25-27 威海 China-VO 2005

  25. China-VO Annual Meeting (2001) China-VO 2005

  26. China-VO Annual Meeting (2003) China-VO 2005

  27. China-VO Annual Meeting (2004) China-VO 2005

  28. China-VO的体系结构 China-VO 2005

  29. China-VO 2005

  30. LAMOST 工作 星表 输入 星表 科学 研究 光谱 分析 图象 处理 LAMOST & China-VO IVO China-VO China-VO 2005

  31. 合作单位 • 国家天文台 (NAOC) • 北京、云南、乌鲁木齐 • 上海台、紫台… • 清华大学天体物理中心 • 北京大学天文系 • 北京师范大学天文系 • 南京大学天文系 • 中国科学技术大学天体物理中心 • 中科院高能所 • 北京天文馆 • 华中师范大学 • 中科院计算机网络信息中心 • 清华大学、天津大学、兰州大学、山东大学 China-VO 2005

  32. China-VO in 2005 • China-VO prototype II: • 2MASS-OB Associations-Galactic spiral arms • China-VO portal: • A uniform data-accessing user interface • VOFilter: • Bridging VO and desktop application • SkyMouse: • A smart VO resource search engine • China-VO Cross-match service • advanced catalog cross match toolkit • WDC-Astronomy • Astronomical warehouse for Chinese astronomers China-VO 2005

  33. China-VO 2006 • 初步可运行的China-VO平台 • PhotoZ－SED科学范例 • 可运行的用户界面工具 • 可运行的交叉证认服务 • 实用的SkyMouse • 1－2个国内试点 • ... China-VO 2005

  34. 路线图 • 2005-2006 • 原型系统 • 主要节点单位的数据服务 • 2007-2008 • 国内主要数据节点 • 与国外（IVOA）互联 • 2009-2010 • 主要计算节点 • 重要设备 • 相关单位 • IVOA China-VO 2005

  35. The Chinese VIRTUAL OBSERVATORY Q & A ? www. .org China-VO 2005

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