China-VO????

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Chinese Virtual Observatory
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??? ?????????? China-VO????
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Agenda

• VO ABC
• IVOA History and Current Status
• China-VO A to Z
• History
• Current Activities

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• CPUPIII?PIV????????(?CPU???????)
• Memory32M-64M-128M-256M-512M-1G-(48G)
• Disk20G-40G-80G-160G-(320500G-12TB)
• Network10Mbps-100Mbps-1000Mbps

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Compute resources for modeling, simulation,
data analysis
Instruments for observations
Cyberinfrastructure Bringing Resources to
Researchers
Human
Global Connectivity
GLIF
Digital collections for knowledge management
Interfaces for visualization and collaborations
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Virtual Sky
VIRTUAL COMMUNITY
Virtual Telescope
Virtual InstrucmentsTools
Virtual Observatory
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VO concept

• ??????????????????????????????????????????????????
  ????????,?e-Science????????????????
• 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).

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VO????

• 1990sNASA???????????????,????????????
• 1999?4?, ???????????????????????
• Szalay, Prince, Alcock ?? National Virtual
  Observatory???
• 1999?11?, NVO ?JHU?????
• 2000?2?, ??? NVO ????NOAO??
• 2000?6?, Virtual Observatories of the
  Future?Caltech??,???????
• 2001?2?, ???????????????
• 2001?9?, ??NSF ???NVO?????
• 2002?6?,???????????

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International VO Alliance
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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

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International VO Alliance
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IVOA Recommendations
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IVOA Events
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First Science Paper from VO

• AA 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.

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Second Science Paper from VO

• Accepted by AA
• Luminous AGB stars in nearby galaxies A study
  using Virtual Observatory tools
• Searching for very luminous AGB stars with J - Ks
  gt 1.5 mag and H - Ks gt 0.4 mag in the LMC, SMC,
  M31, and M33 from 2MASS data.

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IVO Highlights (I)

• AstroGrid V2006.3
• 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
• Science Services - Color Cutter, and AstroScope
• http//www.astrogrid.org/
• http//www2.astrogrid.org

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IVO Highlights (II)

• Aladin v3.7 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
• Multi-language

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NVO Core Services

• NVO Registry Portal Find source catalogs,
  observation logs, image archives, and other
  astronomical resources registered with the NVO
• DataScopeDiscover and Explore Data in the
  Virtual Observatory
• Open SkyQuery Cross match yoru data with
  numerous catalogs
• NVO Spectrum Services Search, plot, and retrieve
  SDSS, 2dF, and other spectra
• Web Source Extractor Upload images to SExtractor
  and cross-correlate the objects found with
  selected survey catalogs.

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China-VO
Building the cyber-infrastructure for Chinese
Astronomy
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RD Focuses

• China-VO Platform
• Uniform Data Access System
• VO-compliant projects
• VO-enabled facilities
• VO-based Public Education

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History and Events

• 2001.11 1st VO workshop in China
• 2002.7 China-VO kicked off
• 2002.10 China-VO became a member of the IVOA
• 2003.6 China-VO system design
• 2003.9 the 2nd VO workshop
• 2003.11 IVOA Small Projects Meeting
• 2004.5 VOFilter 1.0 released
• 2004.12 China-VO 2004
• 2005.8 VOFilter 2.0 released
• 2005.11 China-VO 2005
• 2006.5 VO-DAS project began
• 2006.7 SkyMouse 1.0 released
• Now China-VO 2006
• 2007.5 IVOA interoperability meeting, Beijing

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China-VO Meeting (2001, Beijing)
VO is important, we should involve
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China-VO in 2002

• China-VO initiated
• China-VO PI (Yongheng Zhao) attended the VO
  conference in Garching, ESO
• Dr. Jim Gray (NVO, Microsoft Research) visited
  the China-VO
• China-VO became a member of the IVOA

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China-VO 2003, Beijing
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Small project meeting, Beijing

• 26-28 November 2003 Beijing, China
• Main topics
• Advantages and disadvantages of small projects.
• The role of small projects in the IVOA.
• RD focus of small projects.
• Collaboration among small projects and with big
  VO projects.
• Implementation of IVOA standards and
  infrastructures developed by other VO projects.
• 39 participants from Korea, Japan, India, Europe,
  UK and China (including Taiwan)

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Brief Review
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China-VO 2004, Wuhan, Hubei
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China-VO 2005 (Weihai, Shandong)
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China-VO 2006

• Theme the coming e-science era for astronomy
  research
• Date November 29th December 3rd
• Place Guangxi Normal Univ., Guilin, Guangxi

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Two XSLT transforms

• VOFilter
• an XML filter for OpenOffice.org Calc to open
  VOTable files
• http//services.china-vo.org/vofilter/
• VOTable2XHTML
• a stylesheet to transform VOTable data into
  HTML/XHTML format
• http//services.china-vo.org/votable2xhtml/

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A Smart On-line Astronomical Information Collector
SkyMouse

• Touch the sky with your mouse
• An intelligent client for VO services
• A commodity for astronomers and students

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VO Data Access Service (VO-DAS)

• Based on comparative mature Grid middle-wares,
  for example Globus Toolkit and OGSA-DAI, the
  VO-DAS system will provide VO-compliant, uniform
  access interfaces for different kinds of
  astronomical resources existing as VO services,
  databases, file systems and even data mining
  algorithms and other applications.

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The Chinese VIRTUAL OBSERVATORY

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