VO & Astro-Wise & others

A.Belikov OmegaCEN

A.N.Belikov@astro.rug.nl

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&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

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