VAMDC Project (2009 - 2012)

Reference Details
Sahal-Bréchot, Sylvie, Dimitrijevi\\\'c, Milan S. and Moreau, Nicolas (2010), "State of the development of the STARK-B database in the framework of the European Project VAMDC (Virtual Atomic and Molecular Data Center)".

Stark broadening theories and calculations have been extensively developed for about 50 years. The theory can now be considered as mature for many applications, especially for accurate spectroscopic di- agnostics and modelisation. This requires the knowledge of numerous collisional line pro les, especially for very weakly abundant atoms and ions which are used as useful probes for modern spectroscopic diagnostics. Nowadays, the accces to such data via an on line database becomes indispensable. STARK-B [1] has been a collaborative project between the Astronomical Observatory of Belgrade and the Laboratoire d\\\'Etude du Rayonnement et de la matiere en Astrophysique (LERMA) for a few years. It is a database of calculated widths and shifts of isolated lines of atoms and ions due to electron and ion collisions (i.e. impacts are separated in time). This database is devoted to modelisation and spectroscopic diagnostics of stellar atmospheres and envelopes. In addition, it is relevant to laboratory plasmas, laser equipments and technological plasmas. Hence, the domain of temperatures and densities covered by the tables is wide and depends on the ionization degree of the considered ion. STARK-B is a part of VAMDC [2]. VAMDC (Virtual Atomic and Molecular Data Centre) is an European Union funded collaboration between groups involved in the generation and use of atomic and molecular data. VAMDC aims to build a secure, documented, exible and interoperable e-science environment-based interface to existing atomic and molecular data. STARK-B has been fully opened since September 2008 though not yet complete. We will present the advancement of its development at the Conference. References [1] [2]

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