Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001astl...27..239p&link_type=abstract
Astronomy Letters, vol. 27, p. 239-248 (2001)
Astronomy and Astrophysics
Astrophysics
8
Nuclear Astrophysics
Scientific paper
The kinetic-model (KM) efficiency in heavy-element nucleosynthesis calculations is analyzed. Various nucleosynthesis conditions and various mathematical models are considered. All basic two-particle reactions with neutrons, protons, alpha-particles, and photons are taken into account. The results for the nuclear statistical equilibrium (NSE) model and for the KM are compared under various ambient conditions. The time it takes for the solution to become a steady-state one is estimated in the KM, provided that the NSE approximation holds. The computational processor time for temperatures T < 8 x 10^9 K is shown to be modest, and the KM can be used for nucleosynthesis calculations in this range. The KM can be realized together with the NSE model at higher initial temperatures, with the results being smoothly joined by using the NSE solution as the initial KM approximation. The kinetic model can also be successfully used to compute the r-process under various physical conditions.
Blinnikov Sergei I.
Panov V. I.
Thielemann Friederich-Karl
No associations
LandOfFree
Nucleosynthesis of Heavy Elements: Computational Experiment 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 Nucleosynthesis of Heavy Elements: Computational Experiment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nucleosynthesis of Heavy Elements: Computational Experiment will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1184280