The STARK-B database as a resource for extquotedblleft STARK' widths and shifts data: State of advancement and program of development

摘要

\textquotedblleft Stark" broadening theories and calculations have beenextensively developed for about 50 years and can now be applied to many needs,especially for accurate spectroscopic diagnostics and modeling. This requiresthe knowledge of numerous collisional line profiles. Nowadays, the access tosuch data via an online database becomes essential. STARK-B is a collaborativeproject between the Astronomical Observatory of Belgrade and the Laboratoired'\'Etude du Rayonnement et de la mati\`ere en Astrophysique (LERMA). It is adatabase of calculated widths and shifts of isolated lines of atoms and ionsdue to electron and ion collisions (impacts). It is devoted to modeling andspectroscopic diagnostics of stellar atmospheres and envelopes, laboratoryplasmas, laser equipments and technological plasmas. Hence, the domain oftemperatures and densities covered by the tables is wide and depends on theionization degree of the considered ion. STARK-B has been fully opened sinceSeptember 2008 and is in free access. The first stage of development was ended in autumn 2012, since all theexisting data calculated with the impact semiclassical-perturbation method andcode by Sahal-Br\'echot, Dimitrijevi\'c and coworkers have now beenimplemented. We are now beginning the second stage of the development ofSTARK-B. The state of advancement of the database and our program ofdevelopment are presented here, together with its context within VAMDC. VAMDC(Virtual Atomic and Molecular Data Center) is an international consortium whichhas built a secure, documented, flexible interoperable platform e-sciencepermitting an automated exchange of atomic and molecular data.