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We study the neutrino-induced production of nuclides in explosive supernova nucleosynthesis for progenitor stars with solar metallicity including neutrino nucleus reactions for all nuclei with charge numbers $Z < 76$ with average neutrino…

High Energy Astrophysical Phenomena · Physics 2018-10-17 A. Sieverding , G. Martínez-Pinedo , L. Huther , K. Langanke , A. Heger

The sources of nuclear uncertainties in nova nucleosynthesis have been identified using hydrodynamical nova models. Experimental efforts have followed and significantly reduced those uncertainties. This is important for the evaluation of…

Astrophysics · Physics 2009-06-23 Alain Coc

The nucleosynthetic characteristics of various explosion mechanisms of Type Ia supernovae (SNe Ia) is explored based on three two-dimensional explosion simulations representing extreme cases: a pure turbulent deflagration, a delayed…

Solar and Stellar Astrophysics · Physics 2015-05-18 K. Maeda , F. K. Roepke , M. Fink , W. Hillebrandt , C. Travaglio , F. -K. Thielemann

Although they are but a small fraction of the mass ejected in core-collapse supernovae, neutrino-driven winds (NDWs) from nascent proto-neutron stars (PNSs) have the potential to contribute significantly to supernova nucleosynthesis. In…

High Energy Astrophysical Phenomena · Physics 2011-01-27 L. F. Roberts , S. E. Woosley , R. D. Hoffman

Simulations of nucleosynthesis in astrophysical environments are at the intersection of nuclear physics reaction rate research and astrophysical applications, for example in the area of galactic chemical evolution or near-field cosmology.…

Background: A quantitative microscopic understanding of the fission-fragment yield distributions represents a major challenge for nuclear theory as it involves the intricate competition between large-amplitude nuclear collective motion and…

Nuclear Theory · Physics 2022-02-02 Jhilam Sadhukhan , Samuel A. Giuliani , Witold Nazarewicz

We examine the nucleosynthesis in the innermost, neutrino-processed ejecta (a few $10^{-3}\,M_\odot$) of self-consistent, two-dimensional explosion models of core-collapse supernovae for six progenitor stars with different initial masses.…

Solar and Stellar Astrophysics · Physics 2018-01-10 Shinya Wanajo , Bernhard Müller , Hans-Thomas Janka , Alexander Heger

As an explosion develops in the collapsed core of a massive star, neutrino emission drives convection in a hot bubble of radiation, nucleons, and pairs just outside a proto-neutron star. Shortly thereafter, neutrinos drive a wind-like…

Astrophysics · Physics 2009-11-10 J. Pruet , S. E. Woosley , R. Buras , H. -T. Janka , R. D. Hoffman

Infinite nuclear matter provides valuable insights into the behavior of nuclear systems and aids our understanding of atomic nuclei and large-scale stellar objects such as neutron stars. However, partly due to the large basis needed to…

Nuclear Theory · Physics 2024-12-31 Julie Butler , Morten Hjorth-Jensen , Gustav R. Jansen

In Type Ia Supernovae (\sneia), the relative abundances of chemical elements are affected by the neutron excess in the composition of the progenitor white dwarf. Since these products leave signatures in the spectra near maximum light,…

High Energy Astrophysical Phenomena · Physics 2016-06-22 Broxton J. Miles , Daniel R. van Rossum , Dean M. Townsley , F. X. Timmes , Aaron P. Jackson , Alan C. Calder , Edward F. Brown

There are now hundreds of publicly available supernova spectral time series. Radiative transfer modeling of this data gives insights into the physical properties of these explosions such as the composition, the density structure, or the…

High Energy Astrophysical Phenomena · Physics 2020-01-15 C. Vogl , W. E. Kerzendorf , S. A. Sim , U. M. Noebauer , S. Lietzau , W. Hillebrandt

We implement the Bayesian inference to retrieve energy spectra of all neutrinos from a galactic core-collapse supernova (CCSN). To achieve high statistics and full sensitivity to all flavours of neutrinos, we adopt a combination of several…

High Energy Physics - Phenomenology · Physics 2023-09-26 Xu-Run Huang , Chuan-Le Sun , Lie-Wen Chen , Jun Gao

We present a new set of presupernova evolutions and explosive yields of massive stars of initial solar composition (Y=0.285, Z=0.02) in the mass range 13-35 Msun. All the models have been computed with the latest version (4.97) of the…

Astrophysics · Physics 2009-11-07 M. Limongi , A. Chieffi

This overview discusses issues relevant to modeling nucleosynthesis in type II supernovae and implications of detailed studies of the ejecta. After a brief presentation of the most common approaches to stellar evolution and parameterized…

Astrophysics · Physics 2007-05-23 T. Rauscher

(Abridged) The explosion mechanism of electron-capture supernovae (ECSNe) remains equivocal. We attempt to constrain the explosion mechanism (neutron-star-forming implosion or thermonuclear explosion) and the frequency of occurrence of…

Solar and Stellar Astrophysics · Physics 2019-01-30 S. Jones , F. K. Roepke , C. Fryer , A. J. Ruiter , I. R. Seitenzahl , L. R. Nittler , S. T. Ohlmann , R. Reifarth , M. Pignatari , K. Belczynski

We examine the sensitivity of nucleosynthesis in Type I X-ray bursts to variations in nuclear rates. As a large number of nuclear processes are involved in these phenomena -with the vast majority of reaction rates only determined…

Astrophysics · Physics 2008-06-19 Anuj Parikh , Jordi Jose , Fermin Moreno , Christian Iliadis

We present new nucleosynthesis yields as functions of the stellar mass, metallicity, and explosion energy (corresponding to normal supernovae and Hypernovae). We apply the results to the chemical evolution of the solar neighborhood. Our new…

Astrophysics · Physics 2011-05-05 Ken'ichi Nomoto , Nozomu Tominaga , Hideyuki Umeda , Chiaki Kobayashi , Keiichi Maeda

Details of the explosion mechanism of core-collapse supernovae (CCSNe) are not yet fully understood. There is an increasing number of numerical examples by ab-initio core-collapse simulations leading to an explosion. Most, if not all, of…

High Energy Astrophysical Phenomena · Physics 2019-12-30 Ryo Sawada , Keiichi Maeda

Thermonuclear supernovae originating from the explosion of a white dwarf accreting mass from a companion star have been suggested as a site for the production of $p$ nuclides. Such nuclei are produced during the explosion, in layers…

Solar and Stellar Astrophysics · Physics 2018-01-03 N. Nishimura , T. Rauscher , R. Hirschi , A. St. J. Murphy , G. Cescutti , C. Travaglio

The neutrino process that occurs in the outer stellar shells during a supernova explosion and involves neutrino-nucleus reactions produces a range of rare, stable and radioactive isotopes. We improve previous $\nu$-process studies by using,…

High Energy Astrophysical Phenomena · Physics 2019-07-02 Andre Sieverding , Gabriel Martínez-Pinedo , Karlheinz Langanke , Robert Bollig , Hans-Thomas Janka , Alexander Heger