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  • Solar Activities, Heliospheric Magnetic Fields and Space Weather in Astrophysical Contexts

     

     

    Seminar Title  

    Solar Activities, Heliospheric Magnetic Fields and Space Weather in Astrophysical Contexts 

       

    Speaker:   

    Prof.  YU Qinglou  

       

     Affiliation:    

      (Tsinghua-NAOC joint Research Center for Astrophysics)  

       

    When:   

    Friday morning , Mar. 27th, 10:15, a.m
       

    Where:   

     ( No.212 Lecture Hall, Astronomy Building, Nanjing University xianlin campus,)
     
       

    Welcome to Attend   

     
      ( PMO Academic Committee & Academic Circulating committee)
     

        Abstract   

         

       The grandiose heliosphere is primarily shaped and controlled by the tenuous magnetized solar wind and the orbital motion of our solar system. Solar magnetic activities are the main drivers in the insterstellar space and create dynamic, sometimes disastrous, space weather conditions. There are many legendary stories of human pursuits. We describe physical scenarios and concepts of solar oscillations, magnetohydrodynamic (MHD) fluctuations in the magnetized spiral solar winds, magnetic reconnections, energetic particle acceleration processes, influences on cosmic rays and so forth. Among many missions, the space exploration of Ulysses spacecraft revealed several important properties of magnetized interstellar space environment at high latitudes and the dynamic interaction of the variable solar wind speed with the Jupiter's magnetosphere and inner radiation belt. Physical insights thus gained will be discussed in astrophysical contexts by examples. 

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