High resolution dynamics of plasma flow in coronal loops

BORGAZZI, ANDREA, COSTA, ANDREA, ODIM, MENDES, ROSA, REINALDO

Río de Janeiro

Congreso; 8vo encuentro brasilero de física de plasmas; 2005

The dynamical features of brighting coronal loops have been traditionally interpreted as ¯eld-aligned fow of matter generated by assimetries in the energy input. In this work we study the dynamics of plasma fow in coronal loops taking into account possible instabilities that could be the evolutional characteristics generators of brightening inside them. Records of the evolutional dynamics of the brightening inside the magnetic structures, jointed with a technique that allow the substraction of loops´s background for a sequence of images, it´s possible to determine spatio-temporal sub-structures of plasma inside these extreme UV loop systems. The method was applied to October 1st, 2001 TRACE space-born images showing a compound of several magnetic threads, in the well known line of ¸ = 17:1nm. The obtained results contribute to a more accurated spatial characterization of the loop brightening as a function of time measured along the loop systems in TRACE images.¸ = 17:1nm. The obtained results contribute to a more accurated spatial characterization of the loop brightening as a function of time measured along the loop systems in TRACE images.