Astronomy and Astrophysics – Astrophysics
Scientific paper
1998-08-19
Astronomy and Astrophysics
Astrophysics
27 pages, including 15 inline figures. LaTeX 2e with aaspp4 and graphicx packages. Accepted to ApJ
Scientific paper
10.1086/306692
Having examined the application of quasi-equilibrium to hydrostatic silicon burning in Paper I of this series, Hix & Thielemann (1996), we now turn our attention to explosive silicon burning. Previous authors have shown that for material which is heated to high temperature by a passing shock and then cooled by adiabatic expansion, the results can be divided into three broad categories; \emph{incomplete burning}, \emph{normal freezeout} and \emph{$\alpha$-rich freezeout}, with the outcome depending on the temperature, density and cooling timescale. In all three cases, we find that the important abundances obey quasi-equilibrium for temperatures greater than approximately 3 GK, with relatively little nucleosynthesis occurring following the breakdown of quasi-equilibrium. We will show that quasi-equilibrium provides better abundance estimates than global nuclear statistical equilibrium, even for normal freezeout and particularly for $\alpha$-rich freezeout. We will also examine the accuracy with which the final nuclear abundances can be estimated from quasi-equilibrium.
Hix William Raphael
Thielemann Friedrich-Karl
No associations
LandOfFree
Silicon Burning II: Quasi-Equilibrium and Explosive Burning 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 Silicon Burning II: Quasi-Equilibrium and Explosive Burning, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Silicon Burning II: Quasi-Equilibrium and Explosive Burning will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-610750