Published online by Cambridge University Press: 13 February 2013
Stark broadening theories and calculations have been extensively developed for about 50years. The theory can now be considered as mature for many applications, especially foraccurate spectroscopic diagnostics and modelling. This requires the knowledge of numerouscollisional line profiles, especially for very low abundant atoms and ions which are usedas probes for modern spectroscopic diagnostics in astrophysics. Nowadays, the access tosuch data via an on line database becomes essential. STARK-B (http://stark-b.obspm.fr) is a collaborative project between the AstronomicalObservatory of Belgrade and the Laboratoire d’Étude du Rayonnement et de la matière enAstrophysique (LERMA). It is a database of calculated widths and shifts of isolated linesof atoms and ions due to electron and ion collisions (impacts). It is devoted to modellingand spectroscopic diagnostics of stellar atmospheres and envelopes, laboratory plasmas,laser equipments and technological plasmas. Hence, the domain of temperatures anddensities covered by the tables is wide and depends on the ionization degree of theconsidered ion. The STARK-B database is a part of VAMDC (Virtual Atomic and Molecular DataCentre, http://www.vamdc.eu), which is an European Union funded collaborationbetween groups involved in the generation and use of atomic and molecular data. VAMDC aimsto build a secure, documented, flexible and interoperable e-science environment-basedinterface to existing atomic and molecular data.