Status of VO-Theory standards and implementations at VO-Paris Datacentre

David Languignon (Observatoire de Paris), Franck LePetit (Luth, Observatoire de Paris), Nicolas Moreau (Lerma, Observatoire de Paris), Benjamin Ooghe (Lerma, Observatoire de Paris), Fabrice Roy (Luth, Observatoire de Paris), Carlo Zwolf (Lerma, Observatoire de Paris)


These last years, significant improvements have been done in the Virtual Observatory to develop standards for theoretical services. These works are motivated by the new generation of instruments.
Indeed, a scientific return of large observational facilities will only be possible if the community has access to state of the art simulation codes and simulation results.
The VO-Theory Interest Group at IVOA has developed a data model that can describe any kind of simulations for diffusion in a VO context. This data model is generic and makes use of semantics to describe concepts. The VO-Theory Group is now working on an access protocol that will permit to download pieces of simulations for third-party analysis. An initiative between the Grid & Webservice working group and the VO-Theory group aims at enhancing some standards to develop online code services.

Several implementations have been done at VO-Paris Datacentre :
* PDRDB is a data base of models of astrochemistry. It has been developed to facilitate the interpretation of HERSCHEL and ALMA observations of the interstellar medium. The service can provide profile abundances of hundred chemical species and lines intensities for different models of interstellar clouds.
* Starformat is a service that provides MHD simulations to study the dynamics of the interstellar gas. Teams from Paris Observatory and ZAH publish their simulations through this service. Several projects have been published : dense cores, turbulence, ... The service offers also online post-treatments.
* DEUVO is the data base of the DEUS consortium that aim at publishing in a VO context Grand Challenge simulations results for the study of the impact of dark energy models on the formation of large structures. Up to now a catalog of several millions halos is available.
Development of several other theoretical services is planned.
One of the major next step will be to take benefit of the interoperability allowed by VO standards to create enhanced services as virtual telescopes.

We will present the status of VO-Theory standards : what can be done at present and what can be expected in a near future. We will illustrate this with the VO-Theory services developed at VO-Paris Data Centre.

Paper ID: P079

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