1. Yuji SHIRASAKI National Astronomical Observatory of Japan yuji.shirasaki@nao.ac.jp Current Status of Japanese Virtual Observatory (JVO)

2. JVO Members Project Scientists NAOJ Y. Mizumoto M. Ohishi Y. Shirasaki M. Tanaka S. Honda ICRR N. Yasuda System Engineers Fujitsu Ltd. Y. Ishihara K. Abe J. Tsutumi DB Advisor Ochanomizu U. Y. Masunaga

3. DB maintained by NAOJ 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 Subaru Nobeyama 45m

4. DB maintained by JAXA (NASDA+NAL+ISAS) ASCA X-ray astronomy satellite YOHKO solar physics satellite Ginga X-ray astronomy satellite HALCA VLBI satellite Geotail geomagnetosphere satellite Akebono aurora observation satellite ASTRO-F Infrared satellite ASTRO-E2 X-ray satellite SOLAR-B ASCA HALCA YOHKO

5. Goal of the JVO Project = Researchers 10Gbps Super SINET, linked with GRID technology MetaDB ScienceDB MetaDB ScienceDB Distributed server system GRID Registry 1. Seamless access to the distributed astro DBs – DB federation under Grid technology GRID 2. User-friendly data analysis environment – Accelerate multi-wavelength study 3. Robustness to a heavy access rate – Distributed server system for search and analysis services on the Grid network.

6. JVO Prototype 1 Federation of the distributed data bases – Globus Tool Kit 2 (user authentication, file transfer, remote job submission) – UDDI (to find a requested DB) Define a astronomical query language (JVOQL) – region specification, image request, cross-matching… Development of user interface – Query Language (QL) editor – VOTable Viewer & Plotter Science demo – Cosmic string search through the gravitational lens effect

7. Java2SE 1.4 Apache Tomcat soapuddi JDBC UDDI Registory / Servlet Engine Java2SE 1.4 JVO Server UDDI4J JVO Controller Globus Toolkit (Server) JVO Service (count) SQL library Java2SE 1.4 Maintenance Tool UDDI4J UDDI Maintenance Tool Hypertext contents Solaris8 (Possible at Linux ) Redhat Linux JVO Service ORACLE DB Service Free Software Commercial Software In House Software Function Apache ＳＯＡＰ ① Servlet DownLoad Globus Toolkit (Client) Redhat Linux PostgreSQL (DBMS) DB Service The following free software is included by globus toolkit. OpenSSL (Secure Socket Library) OpenLDAP (LDAP Server) wu-ftpd (ftp server) JVO Prototype System Architecture ③ Find Service Netscape Communicator Java2 Plugin JVO Client (servlet) JVO Client ② Request Observation Monitoring UDDI Data SUBARU SupCam z-band get & parse GSDL pre condition check execute Service post condition check register update delete GSDL (copy) JVO Service (select) SQL library JVO Service (image) JVO Service (X match) Image Data GSDL GridFTP Image Data (copy) ⑥ spawn Service ⑤ execute Service Check status SUBARU DataBase JVO Controller Globus Toolkit AVO Globus Toolkit NVO Internet Image Data SUBARU SupCam i-band Globus Toolkit (Server) JVO Service SQL library SQL library JVO Service (count) JVO Service (select) Copy imate data by GridFTP Copy imate data by GridFTP JVO Service (X match) JVO Service (image) ③ get GSDL ④ Get GSDL by GridFTP GSDL ⑦ issue SQL ④ ’ Get GSDL by GridFTP ⑦ ’ issue SQL ⑤ ’ execute Service Image Data (copy) SUBARU DataBase Gb Ether ⑥ ’ spawn Service Globus Toolkit (Server) JVO Service SQL library JVO Service (select) JVO Service (X match) GSDL Redhat Linux 2Mass DataBase PostgreSQL DB Service 2Mass DB Image Data (copy) Image Data

8. JVO System DB Meta DB Astro Data Meta DB Astro Data JVO Prototype 1 System Architecture User Interface Registry （ UDDI ） JVO QL Editor Resource Viwer Query Interface User Authentication Science Dcmo Gravitational Lens Search Analysis interface JVOQLParser Scheduller Executer Controller VOTable Viewer Plotter Image Viewer Result Viwer Analysis Server login GSI JVOQL Globus-job-submit VOTable FITS GridFTP JVOQL, VOTable JDBC VOTable, FITS Java Servlet JSP Java Beans SOAP JVOQL VOTable, FITS Java Servlet, JSP Java Beans Web Browser

9. JVO Query Language (Catalog+Image) Create view myEROtable as Select s.Bmag, s.Rmag, t.Hmag, t.Kmag, …, sr.BOX(POINT(s.ra,s.dec),w,h) as Rimage, tk.BOX(POINT(s.ra,s.dec),w,h) as Kimage, … From SUBARU s, 2MASS t, …, SUBARU.R sr, 2MASS.K tk, … Where XMATCH(s,b,…) < 3 arcsec and (s.Rmag – t.Kmag) > 6 mag and BOX(POINT(ra0,dec0), w0, h0) and … Create view with the user specified name in JVO system. Select attributes from each catalog server. Column names can be expressed in UCD. Select cutout images from each image data server.Image area can be specified by BOX or CIRCLE operand. Select the catalog server. Select the image data server. Cross-match distributed catalogs. Query condition based on distributed catalog. Specify search area with the same syntax as cutout image specification.

10. JVO Query Language (Image) Select s.a, t.a, … From SUBARU.R s, 2MASS.K t, … Where (s.AREA() OVERLAP t.AREA()) as a

11. User Authentication

12. JVO Control Page Open a JVOQL Editor Load a query file Open a monitor window Run

13. JVOQL Editor Catalog/Table/Colum n selection set search region set cross match condition set image size

14. VOTable Viewer & Plotter

15. Gravitational Lens Search Demo Scientifc objective: Cosmic string search through the gravitational lens effect Looking for pair objects satisfying the following conditions: Separation angle < 5” Same morphology Similar brightness Similar color Aligned along a string (straight line ?) This demo searches pair objects satisfying the checked conditions and the corresponding image data are also retrieved.

16. Produced at a phase transition of early universe ? Density = 10 22 g/cm Gravitational Lens Effect Features: < 5 arcsec No magnification No distortion Observed as twins of a galaxy

17. Gravitational Lens Search Demo (1/2) Query Language Editor separation angle color difference Parameter range Catalog/Table/Column selection

18. Gravitational Lens Search Demo (2/2) jpeg images for 3 bands 3-color composite image SED Color-Color plot

19. Summary: Toward JVO Prototype 2 Globus TK3 File Transfer ---- GridFTP and/or GSI SFS Remote Job submission ---- GRAM Implement Resource Metadata in JVO registry Analysis services (SExtractor, Photometry, Image Subtraction… ) 2001 2002 2003 2004 2005 2006. JVO project start Prototype IPrototype IIPractical System Experimental service start Road Map