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Effects on UV lines observations of stationary plasma flows confined in coronal loops
Institution:1. ESA Solar System Division, Space Science Department, ESTEC, Noordwijk, The Netherlands;2. Dip. di Science Fis. ed Astr. - Sezione di Astronomia - Univ. di Palermo, Palermo, Italy
Abstract:We describe a method which uses a rather detailed model of coronal loop hosting a siphon flow as a diagnostic tool to interpret solar UV and X-ray observations in selected bands and lines. We apply the method to investigate the deviations from ionization equilibrium induced by stationary plasma flows confined in coronal loops and their effects on the UV and EUV emission lines observed by the instruments on board SOHO. We present results on the detailed synthesis of loop emission in a set of selected emission lines observed by CDS and SUMER, taking into account the non-equilibrium of ionization effects.
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