Results 111 to 120 of about 48,557 (214)

Direct determination of the astrophysical reaction rate of 141Pr(γ, n)140Pr at the SSRF-SLEGS

Astronomy & Astrophysics
Context. The 141Pr(γ, n) cross-section is critical to the nucleosynthesis of p-nuclides 136,138Ce in thermonuclear supernovae and in massive stars. The photonuclear reaction of 141Pr(γ, n) provides a new method for producing 140Pr radioisotopes for ...
Hu J. H., An Z. D., Hao Z. R., Li Z. C., Fan G. T., Wang H. W., Ma Y. G., Liu T., Liang H., Wen H. H., Guo C. C.   +10 more
doaj   +1 more source

Impact of in situ nuclear networks and atomic opacities on neutron star merger ejecta dynamics, nucleosynthesis, and kilonovae

Astronomy & Astrophysics
Context. Binary neutron star merger (BNSM) ejecta are key sites of rapid neutron capture (r-process) nucleosynthesis and they produce kilonovae powered by the radioactive decay of freshly synthesized nuclei.
Magistrelli Fabio, Bernuzzi Sebastiano, Perego Albino, Jacobi Maximilian, Fontes Christopher J.   +4 more
doaj   +1 more source

Universality and variability of the heavy r-process element abundance pattern from a nonequilibrium approach

Frontiers in Astronomy and Space Sciences
A striking feature in the observed chemical composition of the majority of stars is the universality of the relative abundances of the heavy elements, although some outliers exist.
David Blaschke, David Blaschke, David Blaschke, Friedrich K. Röpke, Friedrich K. Röpke, Friedrich K. Röpke, Gerd Röpke   +6 more
doaj   +1 more source

Violent mergers revisited: The origin of the fastest stars in the Galaxy

Astronomy & Astrophysics
Binary systems of two carbon-oxygen white dwarfs are one of the most promising candidates for the progenitor systems of Type Ia supernovae. Violent mergers, where the primary white dwarf ignites when the secondary white dwarf smashes into it while being ...
Pakmor Rüdiger, Shen Ken J., Bhat Aakash, Rajamuthukumar Abinaya Swaruba, Collins Christine E., O’Donnell Cillian, Bauer Evan B., Callan Fionntan P., Röpke Friedrich K., Pollin Joshua M., Maguire Kate, Kwok Lindsey A., Seth Ravi, Taubenberger Stefan, Justham Stephen   +14 more
doaj   +1 more source

Measuring neutron capture cross sections of radioactive nuclei: From activations at the FZK Van de Graaff to direct neutron captures in inverse kinematics with a storage ring at TRIUMF. [PDF]

Eur Phys J A Hadron Nucl, 2023
Dillmann I, Kester O, Baartman R, Chen A, Junginger T, Herwig F, Kaltchev D, Lennarz A, Planche T, Ruiz C, Vassh N.   +10 more
europepmc   +1 more source

Big Bang nucleosynthesis

One of the most compelling pieces of evidence of the Hot Big Bang model is the realisation and confirmation that some nuclides were created shortly after the Big Bang. This process is referred to as Big Bang nucleosynthesis (or, sometimes, primordial nucleosynthesis), and is the end-product of putting neutrons and protons in a hot, expanding Universe ...
openaire   +2 more sources

A metal-poor star with abundances from a pair-instability supernova. [PDF]

Nature, 2023
Xing QF, Zhao G, Liu ZW, Heger A, Han ZW, Aoki W, Chen YQ, Ishigaki MN, Li HN, Zhao JK.   +9 more
europepmc   +1 more source

Nucleosynthesis [PDF]

Annual Review of Nuclear and Particle Science, 1984
openaire   +1 more source

Physical Conditions for Synthesis of Sc, Ti, and V in Neutrino-driven Supernovae

The Astrophysical Journal
We present the results of simulations of nucleosynthesis in a core-collapse supernova including the neutrino process. Using the Si layer of a 13 M _⊙ zero-metal progenitor as the initial composition, we calculate the nucleosynthesis by adopting the ...
Ryota Hatami, Nozomu Tominaga, Takashi Yoshida, Hideyuki Umeda, Tomoya Takiwaki   +4 more
doaj   +1 more source

From deep earth to deep stars: A different nuclear reaction path to generate calcium in ancient stars. [PDF]

Innovation (Camb), 2023
Yan H, Shi J, Hou S.
europepmc   +1 more source