| Main Tasks Determination of parameters of Stark broadening and investigations of its influence on spectral lines of white dwarfs and of chemically peculiar A and B type stars. This research field is particularly actualized with the development of satellite born astronomy, so that spectral lines of trace elements are becoming more and more astrophysical significant. For determination of Stark broadening parameters we used semiclassical perturbation and modified semiempirical method, and results were compared with observed stellar spectra and synthetic ones. Our results were entered in international base data STARK-B and Serbian Virtual Observatory. Except for Astrophysics, obtained results are importance and for research of laboratory plasma, plasma technologies, etc. Zoran Simić is the manager of a bilateral project with partners from Bulgaria, Institute of BAS: Institute of Astronomy with NAO and Partner institute: Astronomical Observatory Belgrade, a project entitled "ACTIVE EVENTS ON THE SUN. CATALOGS OF PROTON EVENTS AND ELECTRON SIGNATURES IN X-RAY, UV AND RADIO DIAPASON INFLUENCE OF COLLISIONS ON OPTICAL PROPERTIES OF DENSE HYDROGEN PLASMA." The study and prediction of eruptive solar phenomena, their initiation, driving mechanisms and evolution provide an important physical understanding of the dynamic processes occurring in the solar atmosphere, significant for space weather and geospatial climates. Calculations of plasma optical parameters based on the cut_off Coulomb potential model for hydrogen plasmas of medium and large non-ideality give results that are confirmed in a wide range of plasma parameters. The calculation involves quantum mechanical modeling, and the results can be used to understand processes on the surface of the Sun. It is also widely used in laboratory and technical plasma, this researches are performed with partner institute of Physics Zemun. |
Zoran Simić is a participant in the UrbObsBel project, which received funding from the Science Fund within the framework of the Prizma call. The project aims to create the City Observatory of Belgrade, a new observation station within one of the oldest scientific institutions in Serbia, the Astronomical Observatory from Belgrade. Among the main goals of the project is to measure and study one of the least understood forms of pollution on Earth, light pollution. Our observations will provide valuable information on the distribution of energy consumption, which has a major impact on the environment and ecosystems. |