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Related papers: Nucleosynthesis in O-Ne-Mg Supernovae

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Advances in our understanding and the modeling of stellar core-collapse and supernova explosions over the past 15 years are reviewed, concentrating on the evolution of hydrodynamical simulations, the description of weak interactions and…

Astrophysics · Physics 2008-11-26 H. -Th. Janka , K. Langanke , A. Marek , G. Martinez-Pinedo , B. Mueller

Many radioactive nuclei relevant for gamma-ray astrophysics are synthesized during explosive events, such as classical novae and supernovae. A review of recent results of explosive nucleosynthesis in these scenarios is presented, with a…

Astrophysics · Physics 2007-05-23 M. Hernanz

In order to study the processes creating intermediate and heavy nuclei in massive stars it is necessary to provide neutron capture cross sections and reaction rates close to stability and for moderately unstable neutron-rich nuclei.…

Astrophysics · Physics 2007-05-23 T. Rauscher , A. Heger , S. E. Woosley , R. D. Hoffman

We present nucleosynthesis studies based on hydrodynamical simulations of core-collapse supernovae and their subsequent neutrino-driven winds. Although the conditions found in these simulations are not suitable for the rapid neutron capture…

Solar and Stellar Astrophysics · Physics 2010-12-15 A. Arcones , G. Martinez-Pinedo

The heavy elements formed by neutron capture processes have an interesting history from which we can extract useful clues to and constraints upon both the characteristics of the processes themselves and the star formation and…

Astrophysics · Physics 2009-11-07 J. W. Truran , J. J. Cowan , C. A. Pilachowski , C. Sneden

We present a review of the possible sources for r-process nuclei. It is known that there is as yet no self-consistent mechanism to provide abundant neutrons for a robust r-process in the neutrino-driven winds from nascent neutron stars. We…

Astrophysics · Physics 2010-11-11 Y. -Z. Qian , G. J. Wasserburg

We investigate the behavior and consequences of the reverse shock that terminates the supersonic expansion of the baryonic wind which is driven by neutrino heating off the surface of (non-magnetized) new-born neutron stars in supernova…

Astrophysics · Physics 2009-11-11 A. Arcones , H. -Th. Janka , L. Scheck

This is an exciting time for the study of r-process nucleosynthesis. Recently, a neutron star merger GW170817 was observed in extraordinary detail with gravitational waves and electromagnetic radiation from radio to gamma rays. The very red…

The most detailed calculations of the p-process call for its development in the O/Ne layers of Type II supernovae. In spite of their overall success in reproducing the solar system content of p-nuclides, they suggest a significant…

Astrophysics · Physics 2009-10-31 M. Rayet , V. Costa , M. Arnould

We investigate nucleosynthesis inside both a gamma-ray burst accretion disk and a wind launched from an inner region of the disk using one-dimensional models of the disk and wind and a nuclear reaction network. Far from a central black…

Astrophysics · Physics 2009-11-10 S. Fujimoto , M. Hashimoto , K. Arai , R. Matsuba

I discuss the recent progress in our understanding of nucleosynthesis via rapid neutron capture, the r-process, based on meteoritic data for the early solar system and observations of stars at low metallicities. At present, all data require…

Astrophysics · Physics 2009-10-31 Yong-Zhong Qian

We investigate the relationship between explosion energy and nucleosynthesis in Population III supernovae and provide nucleosynthetic results for the explosions of stars with progenitor masses of $15\,\mathrm{M}_\odot$,…

High Energy Astrophysical Phenomena · Physics 2018-06-13 J. J. Grimmett , Alexander Heger , Amanda I. Karakas , Bernhard Mueller

A number of naturally occurring, proton-rich nuclides (the p-nuclei) cannot be made in the s- and r-process. It has been found that massive stars can produce p-nuclei through photodisintegration of pre-existing intermediate and heavy…

Solar and Stellar Astrophysics · Physics 2010-12-13 T. Rauscher

We investigate explosive nuclear burning in core collapse supernovae by coupling a tracer particle method to one and two-dimensional Eulerian hydrodynamic calculations. Adopting the most recent experimental and theoretical nuclear data, we…

Astrophysics · Physics 2007-05-23 C. Travaglio , K. Kifonidis , E. Mueller

Along with binary neutron star mergers, the in-spiral and merger of a black hole and a neutron star is a predicted site of $r$-process nucleosynthesis and associated kilonovae. For the right mass ratio, very large amounts of neutron rich…

High Energy Astrophysical Phenomena · Physics 2023-03-30 Sanjana Curtis , Jonah M. Miller , Carla Frohlich , Trevor Sprouse , Nicole Lloyd-Ronning , Matthew Mumpower

We suggest that if the astrophysical site for r-process nucleosynthesis in the early Galaxy is confined to a narrow mass range of Type II supernova (SN II) progenitors, with a lower mass limit of Mms = 20 Msun, a unique feature in the…

Astrophysics · Physics 2009-10-31 Takuji Tsujimoto , Toshikazu Shigeyama , Yuzuru Yoshii

Heavy sterile neutrinos can be produced in core-collapse supernovae (CCSNe), which are superb particle generators because of their high densities and temperatures. If the sterile neutrinos are long-lived, these may be produced inside the…

High Energy Physics - Phenomenology · Physics 2025-03-19 Garv Chauhan , R. Andrew Gustafson , Ian M. Shoemaker

We investigate synthesis of heavy elements in a collapsar. We have calculated detailed composition of magnetically driven jets ejected from a collapsar, which is based on long-term, magneto-hydrodynamic simulations of a rapidly rotating…

Astrophysics · Physics 2008-11-26 Shin-ichirou Fujimoto , Masa-aki Hashimoto , Kei Kotake , Shoichi Yamada

We perform a comparative analysis of nucleosynthesis yields from binary neutron star (BNS) mergers, black hole-neutron star (BHNS) mergers, and core-collapse supernovae (CCSNe) with the goal of determining which are the most dominant…

High Energy Astrophysical Phenomena · Physics 2023-08-30 Nick Ekanger , Mukul Bhattacharya , Shunsaku Horiuchi

Heavy nuclei such as nickel-56 are synthesized in a wide range of core-collapse supernovae (CCSN), including energetic supernovae associated with gamma-ray bursts (GRBs). Recent studies suggest that jet-like outflows are a common feature of…

High Energy Astrophysical Phenomena · Physics 2015-04-23 Shunsaku Horiuchi , Kohta Murase , Kunihito Ioka , Peter Meszaros
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