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Virtual Observatory Science Gateways in Astronomical and Astrophysics

Virtual Observatory Science Gateways in Astronomical and Astrophysics. Christophe.Arviset@esa.int Science Archives and Computer Engineering Unit Science Operations Department ESA/ESAC – Madrid, Spain. The VObs Concept for Astronomy. WEB : all documents in the world inside your PC

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Virtual Observatory Science Gateways in Astronomical and Astrophysics

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  1. Virtual Observatory Science Gatewaysin Astronomical and Astrophysics Christophe.Arviset@esa.int Science Archives and Computer Engineering Unit Science Operations Department ESA/ESAC – Madrid, Spain

  2. The VObs Concept for Astronomy • WEB : all documents in the world inside your PC • VObs : all astronomical data in the world inside your PC • What the VObs is NOT: • A centralized database of all astronomical data • A “monolith” software system • A peer-to-peer system • The VObs framework • Agreed standards • Inter-operable data collections • Inter-operable software modules

  3. VObs : What is needed ? • Global standards • Transparent inter-operability for the end users • Well funded data centres • Space agencies, Ground based telescope, Labs • Working data services • Data and Metadata remains the key ! • VObs aware client tools and portals • Bring the data to the users • VObs aware data mining services • New way of making science

  4. Defining Standards for the A&A VObs • Working Groups defining interoperability standards for the VObs • Data Access Layer • Data Model • VO Query Language • Registry of VObs Resources • VOTable • Semantics • Grid and Web Services • Strong involvement of Europe through • National institutions • International organizations (ESA, ESO) • EC funded project – EuroVO AIDA • Link with other science communities • Planetary, Solar Systems

  5. Publish Document Robots makes Inventory Server Create document Publishing Data on the Internet WEBSERVER

  6. Create VObs Service Vobs Spectra Data Model VObs Spectra Access Protocol Find List of VObs Services Produce Data Register VObs Service Euro-VO Registry of VObs resources Publishing Data in the VObs VObs Spectra SERVER S

  7. http://www.euro-vo.org/pub/fc/software.html VObs Science Gateways

  8. ISO PHT HST FOS IUE ISO LWS HST INES HUT EUVE ESA VOSpec : Spectral Analysis Tool • Multi-wavelength spectral analysis tool developed by ESA-VO

  9. Aladin (CDS) • Interactive software sky atlas • Visualize digitized astronomical images, • Superimpose entries from astronomical catalogues

  10. US NVO DataScope

  11. US NOAO VObs Portal

  12. UK AstroGrid VODesktop

  13. The power of applications interoperability in the VObs Aladin: multipanel imaging AstroScope: catalogue search (SAMP) Simple Application Messaging Protocol ISO PHT HST FOS IUE ISO LWS HUT HST INES EUVE VOSpec: generation of SEDs TOPCAT: tabular data plotting/manipulation

  14. New “players” in the game ?

  15. Conclusions • VObs requires international standards for interoperability between astronomical resources • Data Centres remain the key as they provide data, metadata and services • VObs Science Gateways bring these transparently to the end users enabling new Science ! • Special thanks to VObs applications developers and scientists

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