کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10121310 1641616 2005 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Motion of the mantle in the translational modes of the Earth and Mercury
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فیزیک زمین (ژئو فیزیک)
پیش نمایش صفحه اول مقاله
Motion of the mantle in the translational modes of the Earth and Mercury
چکیده انگلیسی
We present a formal framework for including the motion of the mantle in the analysis of the translational motion of the inner core. We analyze the effect of the motion of the mantle on the Slichter modes for a non-rotating planet with an inner core of arbitrary size. We omit the effects of viscosity in the outer core, magnetic effects, and solid tides. Our approach is perturbative and is based on a linearization of Euler's equations for the motion of the fluid and Newton's second law for the motion of the inner core. We find an analytical expression for the period of the Slichter mode. Our result agrees with Busse's in the limiting case of a small inner core. We present the unexpected result that even for Mercury the motion of the mantle does not significantly change the period of the oscillation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics of the Earth and Planetary Interiors - Volume 151, Issues 1–2, 15 July 2005, Pages 77-87
نویسندگان
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