Welcome and Workshop Goal Masatoshi Ohishi NAOJ

Welcome and Workshop Goal Masatoshi Ohishi / NAOJ & Sokendai Chairman, IVOA 大石雅寿 / 国立天文台 & 総合研究大学院大学 masatoshi. ohishi@nao. ac. jp May 10, 2006 IVOA-GGF Astro-RG WS 1

VO Projects in the world • 17 countries and a region • International Virtual Observatory Alliance (IVOA) Standards to interoperate VOs http: //www. ivoa. net/ May 10, 2006 IVOA-GGF Astro-RG WS 2

IVOA Interoperability WS in Kyoto • 2005 May • 90+ people • About 20 countries including China, Korea and Taiwan • Supported by JSPS May 10, 2006 IVOA-GGF Astro-RG WS 3

Standardization in IVOA • Query Language to Federated DBs (VOQL) • Access resource meta-data based on the OAI-PMH • Access Images, Spectra, Catalogues, etc： 　　Sky. Node, SIAP, SSAP, STC, etc. • Unified Attribute Names： 　　UCD (Unified Contents Descriptions) • Output format：VOTable (XML) • and so on May 10, 2006 IVOA-GGF Astro-RG WS 4

May 10, 2006 IVOA-GGF Astro-RG WS 5

Schematic diagram of VOs Web Services Input Queries and Analysis Parameters Web Services Resource Meta-data Web Services User Interface ・Query Editor ・VOTable viewer ・DB queries ・Plotter ・etc Controller SIAP/SSAP/Sky. Node 　・parser 　・scheduler 　・Service caller User US/CAN SIAP/SSAP/Sky. Node Web Services Europe May 10, 2006 IVOA-GGF JVO Portal. Astro-RG WS Server 6

Exchange of Meta Data: OAI-PMH Searchable Registry Publishing Registry Query Services rious s to va es servic Acces Data Service Analysis Service Virtual Observatory Client May 10, 2006 IVOA-GGF Astro-RG WS 7

Interconnected VOs in the World Canada VO May 10, 2006 IVOA-GGF Astro-RG WS 8

Discovery of a Brown Dwarf： SDSS/2 MASS discoveries like this much easier if databases jointly queryable May 10, 2006 IVOA-GGF Astro-RG WS 9

Detection of MANY Type II Quasars May 10, 2006 IVOA-GGF Astro-RG WS 10

ALMA (Atacama Large Millimeter Array) production rate ~ a few PBytes per year The ACA System • Twelve (12) 7 -meter diameter antennas (18 stations) • Four (4) 12 -meter diameter antennas (4 stations) • ACA Correlator in AOS building May 10, 2006 IVOA-GGF Astro-RG WS 11

WS Goals • R&D Operational Systems – Data management for Huge data – Global Workflow mechanism – need global authentication/authorization • Share Current Status of VO as a GOOD example of Data Grid Apps. • Strengthen relationship between VOers and Grid experts toward secure VO systems May 10, 2006 IVOA-GGF Astro-RG WS 12