1. Wiss. Beirat AIP, 01.10. 2004 ClusterFinder & VO-Methods H. Enke German Astrophysical Virtual Observatory ClusterFinder VO Methods for Astronomical Applications

2. Wiss. Beirat AIP, 01.10. 2004 ClusterFinder & VO-Methods H. Enke Overview GAVO A brief introduction ClusterFinder Cluster detection using Virtual Observatory methods

3. Wiss. Beirat AIP, 01.10. 2004 ClusterFinder & VO-Methods H. Enke International Virtual Observatory Alliance

4. Wiss. Beirat AIP, 01.10. 2004 ClusterFinder & VO-Methods H. Enke GAVO’s Pillars Federation of datasets Matching & Classification & Visualization (NGSE) Grid computing Theoretical VO and Theory-Observation Interface

5. Wiss. Beirat AIP, 01.10. 2004 ClusterFinder & VO-Methods H. Enke Federation of Datasets Towards a multi-wavelength view of universe Matching Classification (GAVO/ClassX) SEDs Web services Based on standards + protocols  HTTP + XML or SOAP + WSDL

6. Wiss. Beirat AIP, 01.10. 2004 ClusterFinder & VO-Methods H. Enke NGSE (Next Generation Search Engine) Download Manager Retrieves data from multiple distributed databases Matcher Matches sources based on sky-position (astronomical sources have no unique identifier) Classifier Uses multi-wavelength data for identification purposes Visualization Tools

7. Wiss. Beirat AIP, 01.10. 2004 ClusterFinder & VO-Methods H. Enke Grid computing Cosmologic simulations running on joint MPE and AIP workstation grid (with MPI) Grid computing for source extraction and identification programs

8. Wiss. Beirat AIP, 01.10. 2004 ClusterFinder & VO-Methods H. Enke GAVO-Grid GAVO-GRID (Globus)

9. Wiss. Beirat AIP, 01.10. 2004 ClusterFinder & VO-Methods H. Enke Theory in the VO Publication of simulations (e.g. Planck-Experiment) Theory-observational interface “Virtual telescope”

10. Wiss. Beirat AIP, 01.10. 2004 ClusterFinder & VO-Methods H. Enke Grid security realm Files DB WebServicesWeb-GridServices GAVO Architecture GAVO WebPortal ConeSearch, DB-Query HTTP, SOAP Matching, Classification Collaborative UserSpace/ DataSpace Glue- Applications, Resource Brokering Computing Tasks Secure Protocols Grid Enabled Sites Normal security realm VO-Sites Astronomical Archive Robotic Telescopes

11. Wiss. Beirat AIP, 01.10. 2004 ClusterFinder & VO-Methods H. Enke ClusterFinder Simultaneous search for X-ray clusters of galaxies X-ray photon maps (RASS) Optical galaxy maps (SDSS) developped by P. Schuecker et al. „On a test area of 140 square degrees, 75 X-ray clusters are detected down to an X-ray flux limit of 3 x 10 -13 erg s -1 cm -2 in the ROSAT energy band 0.1-2.4 keV. The clusters have redshifts z < 0.5. The survey thus fills the gap between traditional large-area X-ray surveys and serendipitous X-ray cluster searches based on pointed observations, and has the potential to yield about 4,000 X-ray clusters after completion of SDSS.“

12. Wiss. Beirat AIP, 01.10. 2004 ClusterFinder & VO-Methods H. Enke ClusterFinder VO Methods ConeSearch (HTTP-GET) Grid computing Webservice Archiving of results

13. Wiss. Beirat AIP, 01.10. 2004 ClusterFinder & VO-Methods H. Enke ClusterFinder ConeSearch (HTTP-GET)

14. Wiss. Beirat AIP, 01.10. 2004 ClusterFinder & VO-Methods H. Enke Webservice GridQueue GridJob-Runner Archive access ClusterFinder CF.exe -1processor -100 MB memory -10 GB dataspace - resources (maps, psf)

15. Wiss. Beirat AIP, 01.10. 2004 ClusterFinder & VO-Methods H. Enke ClusterFinder Grid computing Dividing areas Distributed jobs Archive access Processing Contour plots Mosaic

16. Wiss. Beirat AIP, 01.10. 2004 ClusterFinder & VO-Methods H. Enke ClusterFinder Webservice Parameter check and assistance Asynchronous service Runtime information Interface for webservices

17. Wiss. Beirat AIP, 01.10. 2004 ClusterFinder & VO-Methods H. Enke ClusterFinder Archive Parameter values (metadata) Results Scientific references

18. Wiss. Beirat AIP, 01.10. 2004 ClusterFinder & VO-Methods H. Enke Grid vs Internet

19. Wiss. Beirat AIP, 01.10. 2004 ClusterFinder & VO-Methods H. Enke Grid Protocols