PHYSICS OF THE CORONA AND PRESENT AND FUTURE MAJOR SOLAR AND HELIOSPHERIC SPACE MISSIONS

摘要

Several ground facilities and space missions are currently dedicated to the study of the Sun at high resolution and of the solar corona in particular. However, and despite significant progress with the advent of space missions and UV, EUV and XUV direct observations of the hot chromosphere and million degrees coronal plasma, much is yet to be achieved in the understanding of these high temperatures, fine dissipative structures and of the coronal heating in general. Recent missions, in particular Hinode, have shown the definite role of waves and of the magnetic field deep in the inner corona, at the chromosphere-corona interface, where dramatic changes occur. Observations of multithermal loops and modelling will be presented.