MOLECULAR UNIVERSE

Research Training Network - FP6

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Databases and Web Interfaces

The Cologne Database for Molecular Spectroscopy (CDMS) contains predictions of spectroscopic transition frequencies and intensities with their uncertainties, concerning atoms and molecules of interest to the astronomical community. The frequency range currently covers the radio frequency to far-infrared regions. The BASECOL database for collisional ro-vibrational excitation of molecules by various colliders provides excitation rate coefficients, full information on the chain of errors of the data, and full bibliographical information. This collaborative project between Meudon, Grenoble and Bordeaux will be made available at the European level. The UMIST database provides the fundamental set of reaction rate data and related software for use in chemical kinetic modeling of astronomical regions. The database will be extended to include photodissociation and photoionisation cross-sections, the chemistries of minor elements such as Mg and Li, and the synthesis of carbon chains and rings. In addition the current web site will be improved to give more information on individual reactions and to allow a facility in which users can post new data, as well as comment on current data. The CASSIS project will combine suitably calibrated and corrected molecular data from intelligent access of appropriate molecular databases with astrophysical models in order to provide the user with tools for the analysis of astrophysical spectra with high spectroscopic content. All of these data bases are already available and provide the community with downloadable data.


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