Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-08-01
Mon.Not.Roy.Astron.Soc.372:885-900,2006
Astronomy and Astrophysics
Astrophysics
17 pages, 11 figures, Accepted for publication in MNRAS
Scientific paper
10.1111/j.1365-2966.2006.10908.x
We explore semi-complete self-similar solutions for the polytropic gas dynamics involving self-gravity under spherical symmetry, examine behaviours of the sonic critical curve, and present new asymptotic collapse solutions that describe `quasi-static' asymptotic behaviours at small radii and large times. These new `quasi-static' solutions with divergent mass density approaching the core can have self-similar oscillations. Earlier known solutions are summarized. Various semi-complete self-similar solutions involving such novel asymptotic solutions are constructed, either with or without a shock. In contexts of stellar core collapse and supernova explosion, a hydrodynamic model of a rebound shock initiated around the stellar degenerate core of a massive progenitor star is presented. With this dynamic model framework, we attempt to relate progenitor stars and the corresponding remnant compact stars: neutron stars, black holes, and white dwarfs.
Lou Yu-Qing
Wang Wei-Gang
No associations
LandOfFree
New Self-Similar Solutions of Polytropic Gas Dynamics does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with New Self-Similar Solutions of Polytropic Gas Dynamics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New Self-Similar Solutions of Polytropic Gas Dynamics will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-265215