Solar Prominences: Observations

• DOI: 10.12942/lrsp-2014-1
• Publication Date: 2014-03-12T12:09:19Z
• Authors: Susanna Parenti
• Keywords: Solar prominence; Corona (planetary geology)

Solar prominences are one of the most common features solar atmosphere. They found in corona but they hundred times cooler and denser than coronal material, indicating that thermally pressure isolated from surrounding environment. Because these properties appear at limb as bright when observed optical or EUV cool lines. On disk darker their background, presence a plasma absorption process (in this case called filaments). Prominence is embedded magnetic environment lies above inversion lines, denoted filament channel. This paper aims providing reader with main elements characterize peculiar structures, environment, deduced observations. The aim also to point out discuss open questions on prominence existence, stability disappearance. review starts general introduction instruments used for observation. Section 2 presents large scale properties, including morphology, thermodynamical parameters, fields, cavity, all stable conditions. 3 dedicated small-scale observational both morphological dynamical points view. 4 introduces aspects during formation, while 5 reviews sources instability leading disappearance eruption. Conclusions perspectives given 6.