Journal Article

An analytic model for the strong-/weak-shock transition in a spherical blast wave

A. C. Raga, J. Cantó, L. F. Rodríguez and P. F. Velázquez

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 424, issue 4, pages 2522-2527
Published in print August 2012 | ISSN: 0035-8711
Published online August 2012 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1111/j.1365-2966.2012.21208.x
An analytic model for the strong-/weak-shock transition in a spherical blast wave

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Abstract

The solution of a non-radiative, strong, spherical blast wave has been derived from an approximate model of a low-density hot bubble which drives a thin shell (which contains most of the displaced environmental material). We show that this model can be extended to the case in which the blast wave is no longer strong, leading to a full analytic solution. We then compare this analytic model with a numerical solution of the full spherically symmetric Euler equations. Finally, we discuss possible applications of the analytic model to supernovae that explode within pre-existing hot bubbles, or inside dense molecular clouds.

Keywords: hydrodynamics; ISM: evolution; ISM: kinematics and dynamics; ISM: supernova remnants

Journal Article.  3889 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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