Search academic texts

Information × Registration Number 0215U001078, 0110U002124 , R & D reports Title Stokes diagnostics of solar granulation and solar activity popup.stage_title Head Shchukina N.G., Registration Date 16-01-2015 Organization Main Astronomical Observatory popup.description2 Modernized hardware-software complex solar telescope ATsU-5 in order to monitor the Stokes profiles and different spectral lines. Making observations profiles Stokes I, Q, U, V solar spectral lines in the optical and infrared range of the spectrum. Improved diagnostic methods, software and atomic data for the interpretation of these profiles. . The synthesis and analysis of Stokes profiles of solar spectral lines C I, NI, O I, Fe I, Si I and new data on the effect of magnetic field to determine the concentrations of these elements.. Diagnostic methods developed in the department for the diagnosis of the Stokes parameters, have been used to determine the chemical composition of stars and analysis of variance of the linear polarization in the continuum stars arising from the transit of exoplanets. The modeling of the spread of the wave packet in the three-dimensional model of the quiet Sun and sunspots and modeling transformations fast magneto-acoustic waves in Alfven in spots. A test simulation of the global convection and differential rotation of the sun. For the purpose of modeling of coronal mass ejections investigated reconnection of magnetic field lines in the zero-points in a turbulent plasma. New data on the topology of the granulation of magnetic fields in the photosphere, granulation velocity field and wave processes in the photosphere and stains. The role of different mechanisms by heating the chromosphere. It was shown that the most effective of these is the ambipolar diffusion mechanism. Obtained new observational data on the state of the active regions, including torches, potuberantsy and flash. According to experiments SOHO / GOLF and CORONAS / DIFOS received more statistics on the spectrum of acoustic waves in the upper chromosphere and the transition zone of the sun. Product Description popup.authors Васильєва І.Е. Кондрашова Н. М. Костик Р. І. Ольшевський В.Л. Осіпов С. М. Пасечник М. М. Хоменко О.В. Чорногор С. М. Щукіна Н. Г. popup.nrat_date 2020-04-02 Close