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We investigate r-process nucleosynthesis in three-dimensional (3D) general-relativistic magnetohydrodynamic simulations of rapidly rotating strongly magnetized core collapse. The simulations include a microphysical finite-temperature…

High Energy Astrophysical Phenomena · Physics 2018-09-19 Philipp Mösta , Luke F. Roberts , Goni Halevi , Christian D. Ott , Jonas Lippuner , Roland Haas , Erik Schnetter

We report nucleosynthetic results for both $^{44}$Ti and nickel isotopes for eighteen three-dimensional (3D) core-collapse supernova (CCSN) simulations extended to $\sim$20 seconds after bounce. We find that many of our long-term models are…

High Energy Astrophysical Phenomena · Physics 2024-08-06 Tianshu Wang , Adam Burrows

Core-collapse supernova (CCSN) explosions powered by rotation and magnetic fields present an interesting astrophysical site for nucleosynthesis that potentially contributes to the production of $r$-process elements. Here we present yields…

High Energy Astrophysical Phenomena · Physics 2024-07-11 Shuai Zha , Bernhard Müller , Jade Powell

We present the results of simulations of nucleosynthesis in a core-collapse supernova (CCSN) including the neutrino process. Using the Si layer of $13M_\odot$ zero-metal progenitor as the initial composition, we calculate the…

High Energy Astrophysical Phenomena · Physics 2025-12-23 Ryota Hatami , Nozomu Tominaga , Takashi Yoshida , Hideyuki Umeda , Tomoya Takiwaki

We present core-collapse supernova simulations including nuclear reaction networks that impact explosion dynamics and nucleosynthesis. The different composition treatment can lead to changes in the neutrino heating in the vicinity of the…

High Energy Astrophysical Phenomena · Physics 2023-07-19 Gerard Navó , Moritz Reichert , Martin Obergaulinger , Almudena Arcones

The details of the physical mechanism that drives core-collapse supernovae (CCSNe) remain uncertain. While there is an emerging consensus on the qualitative outcome of detailed CCSN mechanism simulations in 2D, only recently have…

High Energy Astrophysical Phenomena · Physics 2018-10-10 Evan O'Connor , Sean Couch

In order to better connect core-collapse supernovae (CCSN) theory with its observational signatures, we have developed a simulation pipeline from the onset of core collapse to beyond shock breakout. Using this framework, we present a…

High Energy Astrophysical Phenomena · Physics 2025-03-13 David Vartanyan , Benny T. H. Tsang , Daniel Kasen , Adam Burrows , Tianshu Wang , Lizzy Teryoshin

We present in this paper a public data release of an unprecedentedly-large set of core-collapse supernova (CCSN) neutrino emission models, comprising one hundred detailed 2D-axisymmetric radiation-hydrodynamic simulations evolved out to as…

High Energy Astrophysical Phenomena · Physics 2023-07-19 David Vartanyan , Adam Burrows

The radioactive isotopes of 44Ti and 56Ni are important products of explosive nucleosynthesis, which play a key role for supernova (SN) diagnostics and were detected in several nearby young SN remnants. However, most SN models based on…

High Energy Astrophysical Phenomena · Physics 2023-10-19 Andre Sieverding , Daniel Kresse , Hans-Thomas Janka

We investigate core-collapse supernova (CCSN) nucleosynthesis with self-consistent, axisymmetric (2D) simulations performed using the radiation-hydrodynamics code Chimera. Computational costs have traditionally constrained the evolution of…

Solar and Stellar Astrophysics · Physics 2017-06-27 J. Austin Harris , W. Raphael Hix , Merek A. Chertkow , C. -T. Lee , Eric J. Lentz , O. E. Bronson Messer

Self-consistent, multidimensional core-collapse supernova (SN) simulations, especially in 3D, have achieved tremendous progress over the past 10 years. They are now able to follow the entire evolution from core collapse through bounce,…

High Energy Astrophysical Phenomena · Physics 2026-02-13 H. -Thomas Janka

In this paper, we present the results of our three-dimensional, multi-group, multi-neutrino-species radiation/hydrodynamic simulation using the state-of-the-art code F{\sc{ornax}} of the terminal dynamics of the core of a non-rotating…

High Energy Astrophysical Phenomena · Physics 2018-10-10 David Vartanyan , Adam Burrows , David Radice , Aaron Skinner , Joshua Dolence

In this study, we present the first multidimensional core-collapse supernovae (CCSNe) simulations including QCD axions in order to assess the impact on the CCSN explosion mechanism. We include axions in our simulations through the…

High Energy Astrophysical Phenomena · Physics 2022-09-26 Aurore Betranhandy , Evan O'Connor

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

Core-collapse supernovae produce elements between Fe and Ag depending on the properties of the ejected matter. Despite the fast progress in supernova simulations in the last decades, there are still uncertainties in the astrophysical…

High Energy Astrophysical Phenomena · Physics 2018-04-04 Julia Bliss , Maximilian Witt , Almudena Arcones , Fernando Montes , Jorge Pereira

We investigate core-collapse supernova (CCSN) nucleosynthesis in polar axisymmetric simulations using the multidimensional radiation hydrodynamics code CHIMERA. Computational costs have traditionally constrained the evolution of the nuclear…

Most one-dimensional core-collapse simulations fail to explode, yet multi-dimensional simulations often explode. A dominant multi-dimensional effect aiding explosion is neutrino-driven convection. We incorporate a convection model in…

High Energy Astrophysical Phenomena · Physics 2020-01-08 Quintin A. Mabanta , Jeremiah W. Murphy , Joshua C. Dolence

We study theoretical neutrino signals from core-collapse supernova (CCSN) computed using axisymmetric CCSN simulations that cover the post-bounce phase up to $\sim 4$~s. We provide basic quantities of the neutrino signals such as event…

High Energy Astrophysical Phenomena · Physics 2021-07-14 Hiroki Nagakura , Adam Burrows , David Vartanyan

We investigate the impact of asymmetric neutrino emissions on the explosive nucleosynthesis in neutrino-driven core-collapse supernovae (CCSNe). We find that the asymmetric emissions tend to yield larger amounts of proton-rich ejecta…

Solar and Stellar Astrophysics · Physics 2019-07-24 Shin-ichiro Fujimoto , Hiroki Nagakura

We present the results of nucleosynthesis calculations based on multidimensional (2D and 3D) hydrodynamical simulations of the thermonuclear burning phase in SNIa. The detailed nucleosynthetic yields of our explosion models are calculated…

Astrophysics · Physics 2009-11-10 C. Travaglio , W. Hillebrandt , M. Reinecke , F. -K. Thielemann
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