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Information × Registration Number 0223U001632, 0122U001560 , R & D reports Title Active processes and magnetic fields in the Sun, their impact on climate change popup.stage_title Head Lozytskyi Vsevolod Н., Доктор фізико-математичних наук Registration Date 01-02-2023 Organization Taras Shevchenko National University of Kyiv popup.description2 Objects of research: the Sun, active processes and magnetic fields in the interior of the Sun, its atmosphere and interplanetary space, aerosols in the Earth's atmosphere, changes in the Earth's climate. The purpose of the work: to obtain and analyze new observational data on the magnetic fields of the Sun and in interplanetary space, as well as new series of measurements of aerosols in the Earth's atmosphere. Develop software for Stokes diagnostics of the solar corona given the line spectra of highly ionized atoms. On the basis of modeling, investigate the excitation of the global migrating current and the variable magnetic field of the Sun as a result of the loss of stability of the differential rotation of the convective zone. Research methods: spectral and spectropolarimetric, as well as methods of magnetohydrodynamics and mathematical statistics. New observational data on active processes and magnetic fields in the 3rd year of the 25th cycle were obtained and processed based on observations at the GST JSC KNU and telescopes of other observatories; it was found that this year the Bsp solar activity index is 23.9±0.1 сТ, which is significantly lower than the average value in the five previous solar cycles. A close relationship between the average annual values of the interplanetary magnetic field in the Earth's orbit and the module of the Sun's general magnetic field was revealed. According to the data of the solar telescopes of GST JSC KNU and GST BBSO, new estimates of particularly strong magnetic fields in active processes on the Sun were made and it was established that in the limbo solar flare on 07/14/2005, the local magnetic field reached 90 kHz at a height of 20 mm. Software for Stokes diagnostics of the solar corona based on data on line spectra of highly ionized atoms has been developed. Product Description popup.authors Yefimenko Volodymyr М. Danylevskyi Vasyl O. Kaminskyj Sеrgiy V. Kryvodubsky Valeriy N. Lozitska Natalya Yo. Shchukina Nataliya G. Yakovkin Ivan I. popup.nrat_date 2023-02-01 Close