Influence of collisions on astrophysical plasma spectra

We will study the influence of collisional processes on spectra of astrophysical plasmas, what is the continuation of 2002-2010 projects. Research topics are: 1 Determination of parameters of Stark broadening and research of its influence on white dwarf spectra, especially for the recently discovered new type, with carbon atmosphere, and for A and B type stars. The results enter in FP7 project VAMDC 239108 and in STARK-B database. 2 Investigations of VLF waves propagation in Earth-ionosphere wave guide, by monitoring of amplitude and phase using AbsPAL and AWESOME systems, to monitore the influence of solar activity and atmospheric discharges to this wave guide (part of COST ES0803). 3 Influence of inelastic atom-Rydberg atom and radiative ion-atom collision processes on kinetics of weakly ionized astrophysical plasmas. The results are rate coefficients and absorption coefficients in UV and VUV regions. 4 With the help of satellite “Wind” (in collaboration with Paris Observatory) will be investigated the interaction of highly energetic solar electron beams with interplanetary plasma, through which they propagate on force lines of the solar magnetic field. The result is to determine parameters of Langmuir oscillations/waves and to prove the cause and effect relationship with type III solar radio bursts. 5 Investigations of exoplanet reflectance spectra searching the biomarkers. The Project is also a basis for education of youngs and for international collaboration.