The DIANA project

The DIANA project

The DIANA (or DIsc ANAlysis) project was a European Framework Seven (FP7) SPACE initiative to conduct a systematic collection, and coherent analysis of observational data from protoplanetary discs. The project collected public and proprietary multi-wavelength data for protoplanetary discs (e.g. Spitzer, Herschel, XMM, HST, VLT, JCMT, ALMA, eMERLIN). Large amounts of such data exist, but are currently seriously underutilised. The team reached an unprecedented level of completeness concerning the modelling of these data sets. The enabled the inclusion of important physical processes such as astrochemistry, gas heating & cooling, dust evolution, continuum & line radiative transfer and non-LTE treatments.

In order to consistently model many objects and multiwavelength datasets, we required a set of standard assumptions about the dust and gas content of disc models. In particular, these assumptions concerned the shape of the disc, the properties of the dust, the opacities considered, the chemical reactions and initial element abundances, and the heating and cooling processes that are taken in to account. In addition to using these assumptions to model the data, we are also releasing our findings to the general community, so that others may make use of them. For more information and to see the models, please visit the DIANA webpages.

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Dr John D. Ilee
Postdoctoral Research Fellow