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The inertia-gravity waves caused by the impact of shoemaker-levy 9 with jupiter
- Source :
-
Chinese Astronomy & Astrophysics . Apr2005, Vol. 29 Issue 2, p203-212. 10p. - Publication Year :
- 2005
-
Abstract
- Abstract: After the collision of Comet Shoemaker-Levy 9 (SL9) with Jupiter, some ring structures were observed propagating outwards at a constant speed (∼450 m/s) on the Jovian surface. These are thought to be linear waves caused by the collision. A linear model of the collision is presented, in which the Jovian atmosphere is considered as an irrotational, inviscid, stratified and incompressible fluid layer moving at a speed of U = b + az. We take an initial impulsive pressure p(r; 0) as the initial condition and solve the fluid dynamics equations for inertia-gravity waves. It is found that most part of the perturbation energy is used to produce internal waves when Jovian atmosphere moves at a constant speed (U = U o (∼170 m/s)). A relation between the impact depth H and the horizontal phase speed vp is deduced. Finally, the inertia-gravity waves are discussed for the case U = b + az and it is found that the perturbation energy is then not divided equally between kinetic energy and potential energy because of the effect of a shear. [Copyright &y& Elsevier]
- Subjects :
- *SHOEMAKER-Levy 9 comet
*JUPITER (Planet)
*INERTIA (Mechanics)
*GRAVITY
Subjects
Details
- Language :
- English
- ISSN :
- 02751062
- Volume :
- 29
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Chinese Astronomy & Astrophysics
- Publication Type :
- Academic Journal
- Accession number :
- 18206139
- Full Text :
- https://doi.org/10.1016/j.chinastron.2005.04.009