Comparison between two models of energy balance in coronal loops

LÓPEZ FUENTES, M.; MAC CORMACK, CECILIA; FRAZIN, RICHARD A.; NUEVO, FEDERICO A.; VÁSQUEZ, ALBERTO M.; LANDI, ENRICO

San Juan

Congreso; Reunión anual de la Asociación Argentina de Astronomía; 2016

Asociación Argentina de Astronomía

In this work we compare two models based on the energy balance along coronal magnetic loops. For the first stationary model we deduce an expression of the energy balance along the loops expressed in terms of quantities provided by the combination of differential emission measure tomography (DEMT) applied to EUV images time series and potential extrapolations of the coronal magnetic field. The second one is a 0D hydrodynamic model that provides the evolution of the average properties of the coronal plasma along the loops, using as input parameters the loop length and the heating rate obtained with the first model. We compare the models for two Carrington rotations (CR) corresponding to different periods of activity: CR-2081, corresponding to a period of minimum activity observed with the Extreme Ultraviolet Imager (EUVI) on board of the Solar Terrestrial Relations Observatory (STEREO), and CR-2099, corresponding to a period of activity increase observed with the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO). The results of the models are consistent for both rotations.