Astronomy and Astrophysics – Astrophysics
Scientific paper
2004-11-20
Astrophys.J. 621 (2005) 803-807
Astronomy and Astrophysics
Astrophysics
13 pages, 4 figures
Scientific paper
10.1086/427677
We investigate hydrodynamic instability of accelerating ionization fronts using two dimensional hydrodynamic simulations that include detailed energy deposition and release due to the absorption of UV radiation, recombination of hydrogen, radiative molecular cooling, and magnetic pressure. We consider linear perturbation growth and find that the stabilization mechanism associated with non-accelerated fronts remains a significant factor even when acceleration is present. Conversely, if recombination in the ionized region is turned off,Rayleigh-Taylor (RT) instability becomes effective, and the classical RT growth rate recovered.
Kane Jave O.
Mizuta Akira
Pound Marc William
Remington Bruce A.
Ryutov Dmitri D.
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