Descripción
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In this paper, we study self-similar solutions, and their linear stability as well, describing the flow within a spherical shell with finite thickness, expanding according to a power law of time, t q , where q>0. The shell propagates in a medium with initially uniform density and it is bounded by a strong shock wave at its outer border while the inner face is submitted to a time-dependent uniform pressure. For q=2/5, the well-known Sedov-Taylor solution is recovered. In addition, although both accelerated and decelerated shells can be unstable against dynamic perturbations, they exhibit highly different behaviors. Finally, the dispersion relation derived earlier by Vishniac (Vishniac, E.T. in Astrophys. J. 274:152, |
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Internacional
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Si |
JCR del ISI
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Si |
Título de la revista
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ASTROPHYSICS AND SPACE SCIENCE |
ISSN
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0004-640X |
Factor de impacto JCR
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1,404 |
Información de impacto
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Volumen
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DOI
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DOI 1007/s10509-010-0563-z |
Número de revista
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Desde la página
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0 |
Hasta la página
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6 |
Mes
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DICIEMBRE |
Ranking
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