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An analytical model of prominence dynamics
Authors:Swati Routh  Snehanshu Saha  Atul Bhat  MN Sundar
Institution:1. Dept. of Physics, Center for Post Graduate Studies, Jain University, No. 18/3, 9th Main Road, Jayanagar, Bangalore, Karnataka 560011, India;2. Dept. of Computer Science & Engineering, PESIT South Campus, Hosur Road, Bangalore 560100, India
Abstract:Solar prominences are magnetic structures incarcerating cool and dense gas in an otherwise hot solar corona. Prominences can be categorized as quiescent and active. Their origin and the presence of cool gas (104?K) within the hot (106K) solar corona remains poorly understood. The structure and dynamics of solar prominences was investigated in a large number of observational and theoretical (both analytical and numerical) studies. In this paper, an analytic model of quiescent solar prominence is developed and used to demonstrate that the prominence velocity increases exponentially, which means that some gas falls downward towards the solar surface, and that Alfvén waves are naturally present in the solar prominences. These theoretical predictions are consistent with the current observational data of solar quiescent prominences.
Keywords:Solar physics  Sun  Solar prominence  MHD waves
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