مشخصات پژوهش

صفحه نخست /The effect of density ...
عنوان The effect of density stratification on the resonant absorption of MHD waves in coronal loops
نوع پژوهش مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها Sun: corona – Sun: magnetic fields – Sun: oscillations
چکیده The standing quasi-modes of the ideal magnetohydrodynamics (MHD) in a zero-β cylindrical magnetic flux tube that undergoes a longitudinal density stratification and radial density structuring are considered. The radial structuring is assumed to be a linearly varying density profile. Using the relevant connection formulae of the resonant absorption, the dispersion relation for the fast MHD body waves is derived and solved numerically to obtain both the frequencies and damping rates of the fundamental and first-overtone, k = 1, 2, modes of both the kink (m = 1) and fluting (m = 2) waves, where k and m are the longitudinal and azimuthal mode numbers, respectively.
پژوهشگران سیروان امیری (نفر سوم)، سعداله نصیری (نفر دوم)، کیومرث کرمی (نفر اول)