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Type Ia supernovae (SNe Ia) are common luminous astrophysical transients. SNe Ia serve as distance indicators for measuring the expansion rate of the universe and play important roles in galactic nucleosynthesis. However, ambiguities…

High Energy Astrophysical Phenomena · Physics 2026-03-02 Vrutant Mehta , Vishal Tiwari , Ruediger Pakmor , Divyanshu Singh , Robert Fisher

This study demonstrates a proof-of-concept application of a deep neural network for particle identification in simulated high transverse momentum proton-proton collisions, with a focus on evaluating model performance under controlled…

High Energy Physics - Experiment · Physics 2025-07-15 Omar M. Khalaf , Ahmed M. Hamed

We perform hydrodynamic supernova simulations in spherical symmetry for over 100 single stars of solar metallicity to explore the progenitor-explosion and progenitor-remnant connections established by the neutrino-driven mechanism. We use…

Solar and Stellar Astrophysics · Physics 2015-06-05 Marcella Ugliano , H. -Thomas Janka , Andreas Marek , Almudena Arcones

Models of infrared spectra of Type Ia supernovae around maximum light are presented. The underlying dynamic models are delayed detonation explosions in Chandrasekhar mass carbon/oxygen white dwarfs. In combination with the radiative…

Astrophysics · Physics 2009-09-25 C. J. Wheeler , P. Hoeflich , R. Harkness , J. Spyromillio

We present the distributions of elemental abundance ratios using chemodynamical simulations which include four different neutron capture processes: magneto-rotational supernovae, neutron star mergers, neutrino driven winds, and electron…

Astrophysics of Galaxies · Physics 2018-12-19 Christopher Haynes , Chiaki Kobayashi

One of the main questions concerning Type Ia supernovae is the nature of the binary companion of the exploding white dwarf. A major discriminant between different suggested models is the presence and physical properties of circumstellar…

Water Cherenkov detectors like Super-Kamiokande, and the next generation Hyper-Kamiokande are adding gadolinium to their water to improve the detection of neutrons. By detecting neutrons in addition to the leptons in neutrino interactions,…

Instrumentation and Detectors · Physics 2023-01-16 Blair Jamieson , Matt Stubbs , Sheela Ramanna , John Walker , Nick Prouse , Ryosuke Akutsu , Patrick de Perio , Wojciech Fedorko

We present the results of two-dimensional radiation-hydrodynamic simulations of expanding supernova ejecta with a central energy source. As suggested in previous multi-dimensional hydrodynamic simulations, a sufficiently powerful central…

High Energy Astrophysical Phenomena · Physics 2021-03-03 Akihiro Suzuki , Keiichi Maeda

We present the results of two-dimensional calculations of turbulent nuclear burning of hydrogen-rich material accreted onto a white dwarf of 1 solar mass. The main aim of the present paper is to investigate the question as to whether and…

Astrophysics · Physics 2008-11-26 A. Kercek , W. Hillebrandt , J. Truran

Highly accurate potential energy surfaces are of key interest for the detailed understanding and predictive modeling of chemical systems. In recent years, several new types of force fields, which are based on machine learning algorithms and…

Chemical Physics · Physics 2019-12-10 Christoph Schran , Jörg Behler , Dominik Marx

Antineutrinos stream freely from rapidly decaying fission products within the cores of nuclear reactors and from long-lived natural radioactivity within the rocky layers of the Earth. These global antineutrinos produce detectable signals in…

Instrumentation and Detectors · Physics 2021-01-14 Steve Dye , Andrew Barna

The binding energies and proton separation energies of nuclides with $Z, N = 30-50$ are investigated, based on the shell model with an uncertainty analysis through statistical methods. Several formulas are used to obtain the binding…

Nuclear Theory · Physics 2022-05-06 Boshuai Cai , Guangshang Chen , Cenxi Yuan , Jianjun He

Despite intense scrutiny, the progenitor system(s) that gives rise to Type Ia supernovae remains unknown. The favored theory invokes a carbon-oxygen white dwarf accreting hydrogen-rich material from a close companion until a thermonuclear…

Astrophysics · Physics 2009-11-13 Douglas C. Leonard

In molecular simulations, machine-learning force fields can achieve ab initio accuracy at a lower cost but remain limited in the explicit modeling of electrons. In this work, we develop an electron-aware machine-learning force field, in…

Chemical Physics · Physics 2025-12-01 Ruiqi Gao , Pinchen Xie , Roberto Car

We present a robust statistical analysis of the white dwarf cooling sequence in 47 Tucanae. We combine HST UV and optical data in the core of the cluster, Modules for Experiments in Stellar Evolution (MESA) white dwarf cooling models, white…

Solar and Stellar Astrophysics · Physics 2016-04-20 Ryan Goldsbury , Jeremy Heyl , Harvey Richer , Jason Kalirai , Pier-Emmanuel Tremblay

We introduce a novel deep convolutional neural network (NN) -enhanced Bayesian global analysis of bulk observables in highest-energy heavy-ion collisions, using relativistic 2+1 D second-order viscous hydrodynamics with a dynamical…

High Energy Physics - Phenomenology · Physics 2026-03-30 Jussi Auvinen , Kari J. Eskola , Henry Hirvonen , Harri Niemi

One of the main challenges in modeling massive stars to the onset of core collapse is the computational bottleneck of nucleosynthesis during advanced burning stages. The number of isotopes formed requires solving a large set of…

The design of accurate helium-solute interaction potentials for the simulation of chemically complex molecules solvated in superfluid helium has long been a cumbersome task due to the rather weak but strongly anisotropic nature of the…

Chemical Physics · Physics 2021-03-25 Christoph Schran , Felix Uhl , Jörg Behler , Dominik Marx

It has long been recognized that the neutrinos detected from the next core-collapse supernova in the Galaxy have the potential to reveal important information about the dynamics of the explosion and the nucleosynthesis conditions as well as…

High Energy Astrophysical Phenomena · Physics 2016-08-23 Warren P. Wright , Gautam Nagaraj , James P. Kneller , Kate Scholberg , Ivo R. Seitenzahl

Hydrogen crossover in polymer electrolyte membrane water electrolysis poses a critical safety and efficiency bottleneck for scalable green hydrogen production. While machine learning offers real-time monitoring capabilities, conventional…

Machine Learning · Computer Science 2026-03-03 Yong-Woon Kim , Paul D. Yoo , Chan Yeob Yeun , Chulung Kang , Yung-Cheol Byun