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    STUDIA PHYSICA - Issue no. 1 / 2009  
         
  Article:   FORCED OSCILLATIONS OF STRATIFIED THIN CORONAL LOOPS DRIVEN BY EIT WAVES.

Authors:  G. MOCANU, A. MARCU, B. ORZA. 		 
       
         
  Abstract:  We study the interaction between thin stratified solar coronal loops and global EIT waves (waves observed in the solar corona in the extreme ultraviolet band filter), considering non–zero gravity and an appropriate density profile for the plasma inside the loop. The EIT force is as an external driver. We discuss the effects of gravitational stratification on the amplitude of forced vibration modes perpendicular to the coronal magnetic field. Our basic mathematical tool is the linear MHD approximation.

Keywords: Sun, EIT waves, MHD equations, coronal loops 		 
         
     
         
         
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