Interpretation of X-ray spectra of sources like accreting black holes requires accurate data with a complete set of atomic transitions as a function of temperature.
Currently, data exist and have been partially integrated into a database (SPEX) but this database is not complete and a significant part of the data available in the literature has not been integrated resulting in incomplete models (and thus potentially inaccurate scientific interpretation). The existing SPEX database will be complemented and made publicly available as a service accessible from MMODA platform.