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Proceedings Paper

Japanese Virtual Observatory (JVO) as an advanced astronomical research environment
Author(s): Yuji Shirasaki; Masahiro Tanaka; Satoshi Kawanomoto; Satoshi Honda; Masatoshi Ohishi; Yoshihiko Mizumoto; Naoki Yasuda; Yoshifumi Masunaga; Yasuhide Ishihara; Jumpei Tsutsumi; Hiroyuki Nakamoto; Yuusuke Kobayashi; Michito Sakamoto
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Paper Abstract

We present the design and implementation of the Japanese Virtual Observatory (JVO) system. JVO is a portal site to various kinds of astronomical resources distributed all over the world. We have developed five components for constructing the portal: (1) registry, (2) data service, (3) workflow system, (4) data analysis service (5) portal GUI. Registry services are used for publishing and searching data services in the VO, and they are constructed using an OAI-PMH metadata harvesting protocol and a SOAP web service protocol so that VO standard architecture is applied. Data services are developed based on the Astronomical Data Query Language (ADQL) which is an international VO standard and an extension of the standard SQL. The toolkit for building the ADQL-based service is released to the public on the JVO web site. The toolkit also provides the protocol translation from a Simple Image Access Protocol (SIAP) to ADQL protocol, so that both the VO standard service can be constructed using our toolkit. In order to federate the distributed databases and analysis services, we have designed a workflow language which is described in XML and developed execution system of the workflow. We have succeeded to connect to a hundred of data resources of the world as of April 2006. We have applied this system to the study of QSO environment by federating a QSO database, a Subaru Suprim-Cam database, and some analysis services such a SExtractor and HyperZ web services. These experiences are described is this paper.

Paper Details

Date Published: 27 June 2006
PDF: 13 pages
Proc. SPIE 6274, Advanced Software and Control for Astronomy, 62741D (27 June 2006); doi: 10.1117/12.670934
Show Author Affiliations
Yuji Shirasaki, National Astronomical Observatory of Japan (Japan)
Masahiro Tanaka, National Astronomical Observatory of Japan (Japan)
Satoshi Kawanomoto, National Astronomical Observatory of Japan (Japan)
Satoshi Honda, National Astronomical Observatory of Japan (Japan)
Masatoshi Ohishi, National Astronomical Observatory of Japan (Japan)
Yoshihiko Mizumoto, National Astronomical Observatory of Japan (Japan)
Naoki Yasuda, Univ. of Tokyo (Japan)
Yoshifumi Masunaga, Ochanomizu Univ. (Japan)
Yasuhide Ishihara, Fujitsu Ltd. (Japan)
Jumpei Tsutsumi, Fujitsu Ltd. (Japan)
Hiroyuki Nakamoto, Systems Engineering Consultants Co., Ltd. (Japan)
Yuusuke Kobayashi, Systems Engineering Consultants Co., Ltd. (Japan)
Michito Sakamoto, Systems Engineering Consultants Co., Ltd. (Japan)


Published in SPIE Proceedings Vol. 6274:
Advanced Software and Control for Astronomy
Hilton Lewis; Alan Bridger, Editor(s)

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