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A.Belikov OmegaCEN [email protected]. 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?. - PowerPoint PPT Presentation
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What will we see?
VO: what, why and how?VO Services: examplesAstro-Wise data in VOVO data: how to use
next steps
Virtual Observatory
VO is one
standards education implementation
VO & Grid
Why VO?
multiband combined surveys
(almost) no cast problem
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
www.ivoa.net
Publishing in VO put data in a place available for an
external user provide a standard VO service
(ConeSearch-STA, SIA, SSA) register data
datastorage(RDBMS)
http server
registry
interface
ODBC VOstandards end-user
Description of resources: XML
VOTable the general container for the data XML based multiple data blocks flexibility: tables, images, archives
task: image qualifier machine
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
Astro-Wise problems: Data
RDBMS Objects XML
DBA, AW user AW user VO user
interfaces to VO
access to AW database
fast changes in the data
security
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
Registry
local publishing registry
relational database-like structure
python
compact: 50 records
AW class
VO services
catalogs, images ConeSearch, SIA
http://vo.astro-wise.org/ConeSearch?FORM=VOTable&PROJECT=ESO-LV
http://vo.astro-wise.org/ConeSearch?FORM=VOTable&[email protected]
http://vo.astro-wise.org/SIAP?FORM=VOTable&PROJECT=ESO-LV
http://vo.astro-wise.org/SIAP?FORM=VOTable&PROJECT=ESO-LV
Registrylocal dynamic publishing registry
Publishing in Astro-Wise
context
change privileges
visibility scope
Access to VO data
VOTable saved on local disk
FITS
VO in Astro-Wise: Example
task: astrophysical parameterestimation
VO tools
browsers (Aladin, topcat) publishing (SAADA) visualization (ViSIVO) desktop (Astrogrid) Plastic VO key sites http://us-vo.org
http://euro-vo.org
NVO
Registry Datascope Mosaic service Grid interface ConeSearch SIAP
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
Tools: Plastic
Tools for browsing
Workbench
Aladin, v4
topcat
catalogs, images, spectra,transient events
catalogs, images
catalogs, visualization
topcathttp://www.star.bris.ac.uk/~mbt/topcat/
Aladin
catalogs, images FOVs
VO: next steps
standards ontology VOSpace workflow management
VOEvent
VOEvent: registry for transient events
www.estar.org.uk
