On the Calculation of Low Frequency Oscillations of the Earth’s Core

1990 ◽  
pp. 163-164
Author(s):  
S. V. Dyakonov
Keyword(s):  
Low Frequency ◽  
Earth’S Core ◽  
Earth's Core ◽  
Low Frequency Oscillations

scholarly journals On the Calculation of Low Frequency Oscillations of the Earth's Core

1990 ◽  
Vol 141 ◽  
pp. 163-164
Author(s):  
S.V. Dyakonov
Keyword(s):  
Compressible Fluid ◽  
High Speed ◽  
Low Frequency ◽  
Original Method ◽  
Characteristic Functions ◽  
Speed Of Convergence ◽  
Earth's Core ◽  
Characteristic Numbers ◽  
Low Frequency Oscillations ◽  
Efficient Scheme

The problem of calculation of low frequency oscillations of an ideal rotating compressible fluid is investigated. An original method of solving such a problem, based on using characteristic functions of the Poincaré operator is proposed. An efficient scheme of calculating the characteristic numbers and functions of the Poincaré operator is worked out. The high speed of convergence of the method is shown. An essential influence of compressibility on the theoretical nutation amplitude is found.

Earth's core lightens up

Nature ◽  
2010 ◽  
Author(s):  
Geoff Brumfiel
Keyword(s):  
Earth’S Core ◽  
Earth's Core

scholarly journals New high-pressure phases of Fe7N3 and Fe7C3 stable at Earth's core conditions: evidences for carbon–nitrogen isomorphism in Fe-compounds

RSC Advances ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 3577-3581 ◽  
Author(s):  
Nursultan Sagatov ◽  
Pavel N. Gavryushkin ◽  
Talgat M. Inerbaev ◽  
Konstantin D. Litasov
Keyword(s):  
Crystal Structure ◽  
High Pressure ◽  
Ab Initio ◽  
Structure Prediction ◽  
Harmonic Approximation ◽  
Crystal Structure Prediction ◽  
Earth’S Core ◽  
Earth's Core ◽  
Core Conditions

We carried out ab initio calculations on the crystal structure prediction and determination of P–T diagrams within the quasi-harmonic approximation for Fe7N3 and Fe7C3.

scholarly journals Leading modes of torsional oscillations within the Earth's core

2009 ◽  
Vol 36 (15) ◽  
pp. n/a-n/a ◽  
Author(s):  
Jean O. Dickey ◽  
Olivier de Viron
Keyword(s):  
Earth’S Core ◽  
Torsional Oscillations ◽  
Earth's Core
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