1 / 30

VO & Astro-Wise & others

A.Belikov OmegaCEN A.N.Belikov@astro.rug.nl. VO & Astro-Wise & others. VO: what, why and how? VO Services: examples Astro-Wise data in VO VO data: how to use next steps. What will we see?. Virtual Observatory. VO is one. standards education implementation. VO & Grid. Why VO?.

sandid
Télécharger la présentation

VO & Astro-Wise & others

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. A.Belikov OmegaCEN A.N.Belikov@astro.rug.nl VO & Astro-Wise & others

  2. VO: what, why and how? VO Services: examples Astro-Wise data in VO VO data: how to use next steps What will we see?

  3. Virtual Observatory VO is one • standards • education • implementation

  4. VO & Grid

  5. Why VO? multiband combined surveys (almost) no cast problem

  6. Simplicity of VO • parametrized request to the data • XML for data exchange • XML for data description • wrapped data (images) • simple range request • required parameters for request • required parameters for result

  7. www.ivoa.net

  8. Publishing in VO • put data in a place available for an external user • provide a standard VO service (ConeSearch-STA, SIA, SSA) • register data registry data storage (RDBMS) ODBC http server VO standards end-user interface

  9. Description of resources: XML

  10. VOTable • the general container for the data • XML based • multiple data blocks • flexibility: tables, images, archives

  11. task: image qualifier machine

  12. Hierarchy of resources WENSS OmegaCEN http://vo.astro-wise.org/ConeSearch?FORM=VOTABLE&PROJECT=WENSS http://vo.astro-wise.org/SIAP?FORM=VOTABLE&PROJECT=WENSS dbview.astro-wise.org

  13. Astro-Wise problems: Data interfaces to VO access to AW database fast changes in the data security RDBMS Objects XML DBA, AW user AW user VO user

  14. Astro-Wise problems: Access uniform identifier access by project, instrument as less changes in AW concept as possible VO layer on top of AW more functionality

  15. Registry local publishing registry relational database-like structure python compact: 50 records AW class

  16. VO services ConeSearch, SIA catalogs, images http://vo.astro-wise.org/ConeSearch?FORM=VOTable&PROJECT=ESO-LV http://vo.astro-wise.org/ConeSearch?FORM=VOTable&INSTRUMENT=WFI@2.2m http://vo.astro-wise.org/SIAP?FORM=VOTable&PROJECT=ESO-LV http://vo.astro-wise.org/SIAP?FORM=VOTable&PROJECT=ESO-LV

  17. Registry local dynamic publishing registry

  18. Publishing in Astro-Wise visibility scope context change privileges

  19. Access to VO data VOTable saved on local disk FITS

  20. VO in Astro-Wise: Example

  21. task: astrophysical parameterestimation

  22. VO tools • browsers (Aladin, topcat) • publishing (SAADA) • visualization (ViSIVO) • desktop (Astrogrid) • Plastic • VO key sites http://us-vo.org http://euro-vo.org

  23. NVO • Registry • Datascope • Mosaic service • Grid interface • ConeSearch • SIAP

  24. Tools for publishing • Astrogrid/DSA catalogs, images, spectra • MEX images, spectra • DALToolkit images, spectra • DMMapper catalogs • SAADA catalogs, images RDMS (mySQL, Postgres) http server (apache-tomcat) http://cds.u-strasbg.fr/twikiDCA/bin/view/EuroVODCA/DcaMay2007Workshop

  25. Tools: Plastic

  26. Tools for browsing Workbench catalogs, images, spectra, transient events Aladin, v4 catalogs, images topcat catalogs, visualization

  27. topcat http://www.star.bris.ac.uk/~mbt/topcat/

  28. Aladin FOVs catalogs, images

  29. VO: next steps • standards • ontology • VOSpace • workflow management

  30. VOEvent VOEvent: registry for transient events www.estar.org.uk

More Related