Observatory Alliance (IVOA) Programmatic Challenges Masatoshi Ohishi / NAOJ & Sokendai大石雅寿/国立天文台&総合研究大学院大学masatoshi.ohishi@nao.ac.jp
July 18, 2006
COSPAR 2006 E1.5-0023-06

• ESO VLT © Paranal • ESO telescopes © La Silla • Telescopes in Mauna Kea Subaru, Keck, JCMT, CSO, SMA,,, • Telescopes on board satellites HST, GALEX,,,, July 18, 2006
COSPAR 2006 E1.5-0023-06
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• Subaru 8.2m Optical-Infrared Telescope • Kiso 105cm Schmidt Camera • Okayama 188cm Optical Telescope • Nobeyama 45m Radio Telescope • Nobeyama Millimeter Array • VSOP • VERA • ALMA VO- New Research Infrastructure in the 21st Century A collection of integrated astronomical data archives and software tools that utilize computer networks to create an environment in which research can be conducted. http://www.encyclopedia.com/html/v1/virtobserv.asp
July 18, 2006
COSPAR 2006 E1.5-0023-06
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• 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
July 18, 2006
COSPAR 2006 E1.5-0023-06

16 countries and a region ● • International Virtual Observatory Alliance (IVOA) Standards to interoperate VOs http://www.ivoa.net/
•  Query Language to Federated DBs (VOQL) •  Access resource meta-data based on the OAI-PMH •  Access Images, Spectra, Catalogues, etc: SkyNode, SIAP, SSAP, STC, etc. •  Unified Attribute Names : UCD (Unified Contents Descriptions) •  Output format : VOTable (XML) • and so o n July 18, 2006
COSPAR 2006 E1.5-0023-06

Twice a year Discussions toward standardization Human network as a basis for cyber network
COSPAR 2006 E1.5-0023-06

• VO-China –  VOFilter : VOTable → OpenOffice data – VOIMPAT : Image processing and analysis toolううう• VO-India – VO-Plot: to plot contents in VOTable 】  July 18, 2006
COSPAR 2006 E1

Based on BPEL4WS ● Variable definition • Controls (Loop, Condition) Parallel execution Invoke external services Invoke built-in Java Classes • ● ●
COSPAR 2006 E1.5-0023-06

•  Data Analysis services under JVO — SExtractor (Image → Catalog) — HyperZ (Catalog → photometric redshift) • In operation on multiple servers → Monitor and Discovery Service (MDS) server Parallel Executions on Multiple Servers are available COSPAR 2006 E1.5-0023-06 July 18, 2006
Status|Registry|Search|Workflow|Result|Database|QSQ|DataViewer|Link|MemoryMonitor|Logout ⇒ All | Detail Workflow Name : work_20060123200255167
2MASSW J1217-03 A methane (T-type) dwarf in the constellation Virgo The near-infrared view 2MASS Composite JHK。Atlas Imag Palomar Digitized Sky Survey , J.E.Gizis (U.Mass), C.C.Dahn & D.G.Monet (USNO, P J.Liebert (Arizona), R.M.Cutri (IPAC/Caltech), N.F.Skrutskie (U.Mass), MASS Project is a collaboration between the University of Massachusetts and IPAC discoveries like this much easier if databases jointly queryable The optical view
news release Virtual observatory discovers missing black holes HUBBLE eesa HUBBLE SPACE TELESCOPE ESA/NUSA, the AVO project and Posto Pedevani
•  Aug 2006 – VO Special Session @IAU GA – 5 days session •  200+ participants registered already – ~30 science talks out of ~50 ー～100 posters
July 18, 2006
COSPAR 2006 E1.5-0023-06

•  Some VO projects move from R&D phase to operations phase – UK, Japan, US, EU,,, •  New VO projects – Brazil, Chinese Taipei, Blugaria, Tagikistan, Ireland, Czech,,,
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•  Distributed Storage to store query/analysis results •  Secure access to VOs : single-sign-on •  Other Standardizations – Standard application interface •  Advertisement to Data Centers – data centers need implement VO interfaces •  VO schools for astronomers
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