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HyperLeda: a strategy of Bulgarian Virtual Observatory

HyperLeda: a strategy of Bulgarian Virtual Observatory. HyperL inked E xtragalactic D atabases and A rchives V.Golev, Ph. Prugniel, G. Paturel and M. Tsvetkov Sofia University, Observatoire de Lyon. Where we are…. Virtual Observatory : General context HyperLeda : The Local Universe

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HyperLeda: a strategy of Bulgarian Virtual Observatory

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  1. HyperLeda: a strategy ofBulgarian Virtual Observatory HyperLinked Extragalactic Databases and Archives V.Golev, Ph. Prugniel, G. Paturel and M. Tsvetkov Sofia University, Observatoire de Lyon iAstro/IDHA Meeting, Strasbourg Observatory

  2. Where we are… • Virtual Observatory: General context • HyperLeda: The Local Universe • Bulgarian AVO initiatives iAstro/IDHA Meeting, Strasbourg Observatory

  3. Virtual Observatory • The modern observational facilities produse enormous volume of data (10 Tb/year/telescope and will be doubled each year). • The higher data quality permits their re-utilisation. Multiplication of the scientific incom of large facilities. Creation of the necessary infrastructures. • Inter-operability of databases and archives • Construction of virtual instruments, and … • … much more … iAstro/IDHA Meeting, Strasbourg Observatory

  4. Virtual Observatory • HyperLeda is well defined in the context of the Virtual Observatory • The points HyperLeda meet as a VO service are: • LEDA: sample selection on a physical constrains basis (100 parameteres, 3 millions objects) • On-line processing of the information (development of the virtual instrument concept ) • VOTable output (Dec 2002), input/output VOTable operability (April 2003) • HyperLeda understends Astronomical Server URL (ASU) iAstro/IDHA Meeting, Strasbourg Observatory

  5. HyperLeda • 3 millions objects • 1.5 Tb total archive + relevant software • 4 main mirors through Europe: • CRAL Observatoire de Lyon • Astronomical Observatory, University of Sofia • Sternberg Astronomical Observatory, Moskow University • Brera Astronomical Observatory, Milan Duration of the project: 5 years, starting at Jan, 2001 iAstro/IDHA Meeting, Strasbourg Observatory

  6. HyperLeda HyperLeda as a virtual instrument: • Statistically every extragalactic astronomer uses the HyperLeda services 15 times per year • LEDA takes a major part of querator, an utility of Astrovirtel • NED propose to re-distribute the mean data produced by LEDA iAstro/IDHA Meeting, Strasbourg Observatory

  7. HyperLeda The Key Scientific Goals: • The study of the physics, kinematics and evolution of galaxies in the Local Universe. • The study of the stellar populations and dynamics of the nearby galaxies. iAstro/IDHA Meeting, Strasbourg Observatory

  8. HyperLeda offers… Services for the international community • Sample selections specifying a complex physical content • Large-scale statistical studies • Reference data (in particular spectrophotometry) • Access and on-line processing of large surveys, in particular DENIS • Using the virtual instruments (spectrophotometry) Complementarity with NED and SIMBAD iAstro/IDHA Meeting, Strasbourg Observatory

  9. HyperLeda – how it works SoftwareProduction iAstro/IDHA Meeting, Strasbourg Observatory

  10. HyperLeda – how it works Lyon 50% Moscow 25% Sofia 25% S/W production iAstro/IDHA Meeting, Strasbourg Observatory

  11. HyperLeda – how it works Catalogues Lyon 40% Sofia 40% GEPI 10% Moscow 10% Catalogues S/W production Catalogues iAstro/IDHA Meeting, Strasbourg Observatory

  12. HyperLeda – how it works Catalogues Catalogues Catalogues S/W production Quality control db construction Mirrors iAstro/IDHA Meeting, Strasbourg Observatory

  13. HyperLeda– how it works Catalogues Archives Archives Catalogues Catalogues Archives S/W Production FITS DENIS … PEGASE … Quality control db construction Mirros iAstro/IDHA Meeting, Strasbourg Observatory

  14. HyperLeda – how it works Catalogues Archives Archives Catalogues Catalogues Archives S/W Production PEGASE … FITS DENIS … Quality control db construction LEDA homogenisation Mirrors iAstro/IDHA Meeting, Strasbourg Observatory

  15. HyperLeda – BG AVO • The strategic interest of Bulgarian astronomy: - In the foresen future BG will not be able to build and/or maintain modern observational facilities - Within 5 years AVOs will be basic utilities for access the new and state-of-art observations - In Germany 8 out of 17 astronomical institutions take part in GAVO, the German initiative of VO. • AVO will up the overal quality of Bulgarian astronomy (professional, educational) - Competences - Operational skills iAstro/IDHA Meeting, Strasbourg Observatory

  16. BG Participants... • Department of Astronomy, Sofia University • Space Research Institute, BAS • Institute of Astronomy, BAS

  17. FIN University Observatory Sofia iAstro/IDHA Meeting, Strasbourg Observatory

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