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Reference Work Entry In depth
r-Process Nucleosynthesis from Compact Binary Mergers
The merger of two neutron stars or of a neutron star and a black hole often results in the ejection of a few percents of a solar mass of matter expanding at high speed in space. Being matter coming from the vi...
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Living Reference Work Entry In depth
r-Process Nucleosynthesis from Compact Binary Mergers
The merger of two neutron stars or of a neutron star and a black hole often results in the ejection of a few percents of a solar mass of matter expanding at high speed in space. Being matter coming from the vi...
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Article
Observatory science with eXTP
In this White Paper we present the potential of the enhanced X-ray Timing and Polarimetry (eXTP) mission for studies related to Observatory Science targets. These include flaring stars, supernova remnants, acc...
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Article
Editorial to the Topical Collection on Supernovae
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Article
Determination of the Galaxy age by the method of uranium–thorium–plutonium isotopic ratios
The dependence of the Galaxy age (Т G), as determined by the method of uranium–thorium isotopic ratios, on the parameters of the nucleosynthesis model is studied within the theory ...
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Article
Half-life of short-lived neutron-excess nuclei that participate in the r-process
A quasi-classic model of a strength function based on finite Fermi systems is used to predict β-decay periods for neutron-excess nuclei. The results from calculations are compared to experimental data and othe...
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Article
Influence of spontaneous fission rates on the yields of superheavy elements in the r-process
The formation of heavy elements in the neutron star merger scenario is considered. In such a scenario, the duration of the r-process is long and when the nucleosynthesis wave passes through the region of actinide...
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Article
Probabilities of delayed processes for nuclei involved in the r-process
Delayed fission, along with induced and spontaneous fission, is responsible for the suppression of the production of superheavy elements both during the r-process and after its completion. Beta-decay strength ...
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Article
Have superheavy elements been produced in nature?
We discuss the possibility whether superheavy elements can be produced in Nature by the astrophysical rapid neutron capture process. To this end we have performed fully dynamical network r-process calculations...
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Article
Neutron-induced reaction rates for the r-process
Neutron-induced reaction rates for the formation of heavy and superheavy nuclei in the astrophysical r-process are presented. Neutron-induced reactions, including fission and neutron capture, at astrophysical tem...
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Chapter
Massive Stars and Their Supernovae
Our understanding of stellar evolution and the final explosive endpoints such as supernovae or hypernovae or gamma-ray bursts relies on the combination of (a) (magneto-)hydrodynamics, (b) energy generation due...
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Article
Superheavy elements and r-process
The probability for the production of superheavy elements in the astrophysical r-process is discussed. The dependence of the estimated superheavy-element yields on input data is estimated. Preliminary calculat...
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Article
The r-Process in the region of transuranium elements and the contribution of fission products to the nucleosynthesis of nuclei with A ≤ 130
We discuss the influence of nuclear masses and mass distributions of fission products on the formation of heavy elements at the final stages of the r-process recycled through fission on long duration timescales. ...
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Article
(n,γ) cross-sections of light p nuclei
The nucleosynthesis of elements beyond iron is dominated by the s and r processes. However, a small amount of stable isotopes on the proton-rich side cannot be made by neutron capture and is thought to be produce...
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Chapter and Conference Paper
(n, γ) cross-sections of light p nuclei
The nucleosynthesis of elements beyond iron is dominated by the s and r processes. However, a small amount of stable isotopes on the proton-rich side cannot be made by neutron capture and is thought to be produce...
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Chapter and Conference Paper
DECONFINEMENT PHASE TRANSITION IN RELATIVISTIC NEUTRON STAR MERGERS
We consider the influence of the deconfinement phase transition on gravitational waves (GW) emitted in a binary neutron star merger. We perform 3D hydrodynamic simulations based on the conformally flat approxi...
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Article
Fission and the r-process: Competition between neutron-induced and beta-delayed fission
We show that for the discussed scenario of a neutron-star merger in highly neutronized ejecta (Y e ⊃0.1), neutron-induced fission plays a major role in the r-process cycling and...
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Article
Fission and the r-process: The rates of induced and delayed fission
The most recent fission-barrier calculations based on improved mass formulas indicate that the adopted values are underestimated. We analyze the dependence of the fission rates on the fission barrier and show ...
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Chapter and Conference Paper
Supernova Nucleosynthesis and Galactic Evolution
The understanding of the abundance evolution in the interstellar medium, and especially the enrichment of heavy elements, as a function of space and time reflects the history of star formation and the lifetime...
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Chapter and Conference Paper
Nuclear-reaction rates in the thermonuclear runaway phase of accreting neutron stars
The rp-process has been suggested as the dominant nucleosynthesis process in explosive hydrogen burning at high temperature and density conditions. The process is characterized by a sequence of fast proton cap...
