Solar coronal magnetic field diagnostics through polarimetric forward modelling of the Hanle effect

摘要: Context. Progress in the solution to some of most outstanding open problems solar physics, such as coronal heating, wind acceleration, generation and triggering explosive events like flares CMEs, hinges on provision a more stringent estimate magnetic field coordinates. Aims. We seek way infer atmosphere. A very promising doing this is by using Hanle effect resonance scattering Lα line Methods. By forward modelling known effects presence fields, i.e. rotation plane polarisation depolarisation linear parameters, comparing them observations, one could potentially uncover morphology restrict its intensity range. simulate simple dipole configurations along coordinate axes analyse outcome through two kinds graphs (i.e. difference angle with respect field-free case, relative depolarisation). Results. The are either symmetric, anti-symmetric or asymmetric (y,z) plane. This explained invoking symmetry operations taking into account that pseudovector. also show polarimetric active regions use pairwise due dipoles signatures loops. Inspired famous TRACE image, we finally what expect from polarimetry performed region atmosphere displayed image. Conclusions. combining complementary remote sensing techniques, Zeeman effect, all thinkable ways tracers images revealed TRACE, SOHO, STEREO, etc., hope day be able Much theoretical instrumental work still lies ahead, however.