1. National Center for Supercomputing Applications 259 th fastest computer in the world Michael Remijan NCSA –Research Programmer –Web-based Distributed Programming –Databases –Java

2. National Center for Supercomputing Applications 259 th fastest computer in the world Applications Overview Cross ID Federation (xid) ALL-QSO Astroforge

3. National Center for Supercomputing Applications 259 th fastest computer in the world Cross ID Federation (xid)

4. National Center for Supercomputing Applications Cross ID Federation (xid) Most Surveys have great spatial locations Problems: 1.Some have poor spatial locations 2.Things look different in different wavelengths (ROSAT) -3 optical sources, 2 stars and something else -Generate better probabilities using astronomy knowledge -x1 2%, -x2 20% -x3 78%

5. National Center for Supercomputing Applications 259 th fastest computer in the world ALL-QSO

6. National Center for Supercomputing Applications 259 th fastest computer in the world ALL-QSO Quasars –Historically, difficult to confirm Intense observation (spectroscopy) – blue spectrum –Many, many small surveys Limited number of objects and data for those objects Overlap between surveys All-QSO –Collect all major surveys into one DB –Searching capability –Semi-intelligent “unique” tool –Cross-match for more information Major success at early stages –Several submitted and ongoing paper (APJ) QSO variability is correlates with properties in X-ray/radio or IR Data-mining algorithms to detect new quasars (AISRP Proposals) –NCSA’s D2K –Condor & Teragrid Save expenses for Hubble, Chandra, Spitzer

7. National Center for Supercomputing Applications 259 th fastest computer in the world ALL-QSO Further development (AISRP Proposals) –“Unique” object selection Only semi-intelligent –Currently: Weighting of general catalog quality –Development: Quality of data –“Repeat” object selection Want objects observed several times. –Major Scientific Tool Web application robust and load-balanced for high traffic New types of access –VO compliance (VOTABLE) –Web Services with Java & Python examples to download –Java desktop GUI (SLOAN) –Pixelization Schemes (Hierarchical Triangular Mesh) “What is everything known about QSOs, for all time, at all wavelengths, in this pixel of the sky?

8. National Center for Supercomputing Applications 259 th fastest computer in the world Astroforge www.astroforge.net

9. National Center for Supercomputing Applications 259 th fastest computer in the world Astroforge Code –Archive Hosted on Astroforge –Library Link on Astroforge –Knowledge Center

10. National Center for Supercomputing Applications 259 th fastest computer in the world Astroforge Further development (AISRP Proposals) –A lot depends on use Feedback from users to make it better –Web Service access Create versions & releases Upload, edit, delete files –Searching More sophisticated searching algorithms –Webcrawlers Existing NCSA project Identify software out on the web

11. National Center for Supercomputing Applications 259 th fastest computer in the world Thank You