2003/05/13 by P. Haensel, J. L. Zdunik · 3 citations
Earth and Planetary Sciences · Physics and Astronomy · #Astrophysical Phenomena and Observations #Earth Systems and Cosmic Evolution #Gamma-ray bursts and supernovae #astro-ph
paper · pdf · doi:10.1051/0004-6361:20030708
published as Astron.Astrophys.404:L33-L36,2003 · 5 pages, 2 figures, accepted for publication in A&A Letters
arxiv created 2003/05/13 · openalex publication_date 2003/06/01 · arxiv updated 2011/05/23 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31
Nuclear reactions in accreting neutron-star crusts and the heat release accompanying them are studied, under different assumptions concerning the composition of the outermost layer formed of the ashes of X-ray bursts. Particular examples of ashes containing nuclides with are considered and compared with a standard case. In all cases, evolution of a crust shell is followed from to a few times . The total crustal heating produced in the non-equilibrium processes in the accreting crust is per one accreted nucleon. The composition of the accreted crust at densities exceeding the threshold for the pycnonuclear fusion () is essentially independent of the assumed initial composition of the X-ray burst ashes.