2004/11/20 by Akira Mizuta, J. Kane, Jave O. Kane +7 · 3 citations
Physics and Astronomy · #Astrophysics and Star Formation Studies #Atomic and Molecular Physics #Galaxies: Formation, Evolution, Phenomena #astro-ph
paper · pdf · doi:10.1086/427677
published as Astrophys.J. 621 (2005) 803-807 · 13 pages, 4 figures
arxiv created 2004/11/20 · openalex publication_date 2005/03/10 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31
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 nonaccelerated 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.