Dokumente Fakultät für Physik (inkl. GAUSS) nach Gutachter "Solanki, Sami K. Prof. Dr."

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    • High resolution scattering spectropolarimetry of the quiet solar photosphere 

      Zeuner, Franziska (2021-01-14)
      In this thesis we investigate small-scale scattering polarization signals in quiet, internetwork (IN) regions of the lower solar atmosphere. Small-scale polarization signals are inherently hard to observe due to their ...

    • Slender Ca II H fibrils observed by SUNRISE/SuFI 

      Gafeira, Ricardo Jorge Maranhas (2018-04-24)
      This thesis is devoted to analyzing the morphological and oscillatory properties of slender \caiih{} fibrils (SCFs) in the lower solar chromosphere. The aim of this study is to deepen our understanding of the physical ...

    • Analysis of historical solar observations and long-term changes in solar irradiance 

      Chatzistergos, Theodosios (2017-10-25)
      The Sun is the main external driver of Earth's climate. Various mechanisms of the solar influence on climate have been proposed. The debate is ongoing, but variation in the radiative flux of the Sun is among the main ...

    • Cycle-related solar vacuum ultraviolet (VUV) variability 

      Shakeri, Farhad (2015-11-09)
      Various studies has shown that the Sun was in an extremely inactive state during the prolonged minimum of the cycle 23 compared to other recent minima. Following these studies, in this thesis work, it was tried to have a ...