Searching for scaling-laws in quiet-Sun coronal loops

MCCORMACK, C.; LÓPEZ FUENTES, M.C.; MANDRINI, C.H.; LLOVERAS, D.; VÁSQUEZ, A.M.

La Serena

Congreso; Second Binational Meeting AAA-SOCHIAS; 2018

The knowledge of the relation among different physical parameters of coronal magnetic loops allows us obtaining observational scaling laws to compare to those derived from theoretical coronal heating models.In previous works, theoretical scaling laws have been compared with observations of magnetic loops belonging to active regions (AR) (see Mandrini, Demoulin and Klimchuk 2000, ApJ, 530, 999). Since in the quiet-Sun corona loops are not directly observable the task is more difficult. In recent works, a technique called differential emission measure tomography (DEMT) was developed. This technique provides the three-dimensional distribution of the average temperature and density in the coronal volume from a series of observations from EUV telescopes throughout a solar rotation (see the review of Vasquez 2016, AdSpR, 57, 1286). The tomographic results are combined with magnetic field extrapolations to obtain average temperature and density of the plasma along the field lines. In this work, we study the scaling laws obtained from the analysis of parameters reconstructed tomographically for Carrington rotation 2081 (see Mac Cormack et al 2017, ApJ, 843, 70). We compare these scaling laws with the expected relations according to the most known models of coronal heating.