1. F. Genova, AstroNET meeting, Poitiers The Astrophysical Virtual Observatory

2. F. Genova, AstroNET meeting, Poitiers Astronomy on-line resources On-line information and services: observatory archives, value-added services and tools (e.g. CDS, NED), electronic journals and the NASA ADS bibliographic database, … Widely used by the community world-wide A very significant fraction of published papers combine data from several instruments Long term international partnership for defining standards to describe data and for networking of on- line resources Navigation between on-line resources

3. F. Genova, AstroNET meeting, Poitiers The Astronomical Virtual Observatory Science driven: tools for astronomers From links between services to the astronomical Virtual Observatory (integration) Seamless and transparent query of data centres New analysis and visualisation tools A standard structure for data centres to publish their data and services

4. F. Genova, AstroNET meeting, Poitiers Data available at selected point are highlighted in tree Field of view outlines are plotted automatically Image metadata – provenance and characterisation HST-ACS DSS VLT-ISAAC Chandra ESO-WFI 2MASS My Data AVO prototype based on CDS Aladin Prototype accessing distributed archives: AVO RTD project (FP5)

5. F. Genova, AstroNET meeting, Poitiers ESAC IAP ParisObservatory Lyon Observatory

6. F. Genova, AstroNET meeting, Poitiers ESA VOSpec & Spectral Line Access Protocol (SLAP) Service Line lists in value-added services provided by specialised scientific teams

7. F. Genova, AstroNET meeting, Poitiers A huge diversity of resources ‘Classical’ data centres: observatory archives, services such as ADS, CDS NED - science ready data (project end-product), value-added services + VO layer More and more scientific teams are willing to provide services – share their expertise theoretical services (running models/giving access to results), focussed services, image processing s/w suites, … E.g. comparison between modelling and observations A “hidden” research infrastructure but a major support for research

8. F. Genova, AstroNET meeting, Poitiers Round the clock: Europe (incl. ESA, ESO + 6 partners) China India Canada Spain Italy Armenia France Germany Hungary Japan Korea USA Russia UK (AstroGrid) Australia A global framework: the International Virtual Observatory Alliance