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Recent Progress of the Japanese Virtual Observatory Project

Recent Progress of the Japanese Virtual Observatory Project. Masatoshi Ohishi / NAOJ 大石雅寿 / 国立天文台 masatoshi.ohishi@nao.ac.jp. Supporter NII Miura. JVO collaborators. Project Scientists NAOJ Mizumoto Oe Shirasaki Tanaka Honda Kawanomoto ICRR Yasuda Ochanomizu U. Masunaga.

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Recent Progress of the Japanese Virtual Observatory Project

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  1. Recent Progress of the Japanese Virtual Observatory Project Masatoshi Ohishi / NAOJ 大石雅寿 / 国立天文台 masatoshi.ohishi@nao.ac.jp ISGC 2005 @ Taipei

  2. Supporter • NII • Miura JVO collaborators Project Scientists NAOJ • Mizumoto • Oe • Shirasaki • Tanaka • Honda • Kawanomoto ICRR • Yasuda Ochanomizu U. • Masunaga System Engineers Fujitsu Ltd. • Monzen • Kawarai • Ishihara • Yamazaki SEC Ltd. • Morita • Nakamoto • Kobayashi • Yoshida ISGC 2005 @ Taipei

  3. Nature of Astronomers • Much higher sensitivity → more distant objects • New frequencies / wavelength → unknown aspects • Wider areas → statistical studies • WE NEED MORE DATA !! ISGC 2005 @ Taipei

  4. Nobeyama 45m Data Resources in NAOJ Subaru Subaru 8.2m Optical-Infrared Telescope Kiso 105cm Schmidt Camera Okayama 188cm Optical Telescope Nobeyama 45m Radio Telescope Nobeyama Millimeter Array Nobeyama Radioheliograph VSOP VERA ALMA ISGC 2005 @ Taipei

  5. Data Resources in JAXA/ISAS ASCA ASCA X-ray astronomy satellite YOHKOsolar physics satellite Ginga X-ray astronomy satellite HALCA VLBI satellite Geotail geomagnetosphere satellite Akebonoaurora observation satellite ASTRO-F Infrared satellite ASTRO-E2 X-ray satellite SOLAR-B YOHKO HALCA ISGC 2005 @ Taipei

  6. Simple Spectrum Access Image / Spectrum / Catalog interoperability ISGC 2005 @ Taipei

  7. ISGC 2005 @ Taipei

  8. What is the Virtual Observatory…and what it is not… 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 and instruments • A centralized repository for data • A data quality enforcement organization ISGC 2005 @ Taipei

  9. VO Projects in the world • 15 countries and a region • International Virtual Observatory Alliance (IVOA)Standards to interoperate VOs • Japan – Language to accessfederated DB http://www.ivoa.net/ ISGC 2005 @ Taipei

  10. Standardization in IVOA • Query language to distributed DBs (VOQL) • Meta-data：contents, protocol to interchangebased on OAI-PMH • Protocols to retrieve images, spectra, and so onSkyNode, SIAP, SSAP, STC, etc. • Unified attribute names in DBsUCD (Unified Contents Descriptions) • Output Format：VOTable (XML)incorporates FITS • etc ISGC 2005 @ Taipei

  11. International Endorsements • IAU XXVth GA Res. (2003 Jul.) • OECD Rec. (‘04 Aug) • place archives that may be accessible via internet • provide adequate funding as long-term issues ISGC 2005 @ Taipei

  12. Schematic diagram of JVO ISGC 2005 @ Taipei

  13. DBs available under JVO • Subaru SupCAM (partial) • SXDS • SMOKA (catalog) • SDSS • 2MASS • JAXA/ISAS – ASCA • More to come ISGC 2005 @ Taipei

  14. Exchange of Meta Data:OAI-PMH ISGC 2005 @ Taipei

  15. Successful Interoperations • Accesses from / to other VOs in Europe and US have been available since Dec 2004 • 85 resources are accessible as of today ISGC 2005 @ Taipei

  16. JVO is seen from the UK VO ISGC 2005 @ Taipei

  17. Access time to the US VO ISGC 2005 @ Taipei

  18. Analysis Tools • Sextractor – extract source parameters generate personal catalogs • HyperZ – derive photometric Z • Aladin – Image viewer • VOPlot – Plot VOTables • SpecView – Spectral Energy Distribution generator • More to be added • Legacy softwares, Data mining, personal DBs, etc. ISGC 2005 @ Taipei

  19. QSO searches Such results can be obtained only in a few minutes ISGC 2005 @ Taipei

  20. Future Prospects Start to design / implement operational system • Upgrade user-interfaces • Add spectrum data • Add analysis engines by Java-wrapping • Download to / Upload from user machines • Science corresponding to use cases !! • Design workflows • ････ ISGC 2005 @ Taipei

  21. Acknowledgement • Core-to-Core Program of the JSPS • Grant-in-Aid by the MEXT • NAOJ • funding, personnel, etc. ISGC 2005 @ Taipei

  22. Reference URLs JVO – http://jvo.nao.ac.jp/index-e.html IVOA – http://www.ivoa.net/ there are links to other VO projects in the world ISGC 2005 @ Taipei

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