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Supernovae and the Arrow of Time [PDF]
Entropy, 2022 Supernovae are explosions of stars and are a central problem in astrophysics. Rayleigh–Taylor (RT) and Richtmyer–Meshkov (RM) instabilities develop during the star’s explosion and lead to intense interfacial RT/RM mixing of the star materials.
Snezhana I. Abarzhi +4 more
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Supernova dust destruction in the magnetized turbulent ISM [PDF]
Nature CommunicationsDust in the interstellar medium (ISM) is critical to the absorption and intensity of emission profiles used widely in astronomical observations, and necessary for star and planet formation. Supernovae (SNe) both produce and destroy ISM dust.
Florian Kirchschlager +2 more
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Original e− Capture Cross Sections for Hot Stellar Interior Energies
Particles, 2022 The nuclear electron capture reaction possesses a prominent position among other weak interaction processes occurring in explosive nucleosynthesis, especially at the late stages of evolution of massive stars.
Panagiota Giannaka +2 more
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Supernova Dust Evolution Probed by Deep-sea 60Fe Time History
The Astrophysical Journal, 2023 There is a wealth of data on live, undecayed ^60 Fe ( t _1/2 = 2.6 Myr) in deep-sea deposits, the lunar regolith, cosmic rays, and Antarctic snow, which is interpreted as originating from the recent explosions of at least two near-Earth supernovae.
Adrienne F. Ertel +3 more
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Tracer Particles for Core-collapse Supernova Nucleosynthesis: The Advantages of Moving Backward
The Astrophysical Journal, 2023 After decades, the theoretical study of core-collapse supernova explosions is moving from parameterized, spherically symmetric models to increasingly realistic multidimensional simulations.
Andre Sieverding +6 more
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Effect of Protoneutron Star Magnetized Envelops in Neutrino Energy Spectra
Particles, 2022 The neutrino dynamics in hot and dense magnetized matter, which corresponds with protoneutron star envelopes in the core collapse supernova explosions, is considered.
Vladimir N. Kondratyev +2 more
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Doppler Broadening and Line-of-sight Effects in Core-collapse Supernovae and Young Remnants
The Astrophysical Journal, 2023 The dynamics and spectral characteristics of supernova ejecta reveal details of the supernova energetics, explosive nucleosynthesis, and evolution of the progenitor.
Taylor Jacovich +6 more
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Neutrino-driven Winds in Three-dimensional Core-collapse Supernova Simulations
The Astrophysical Journal, 2023 In this paper, we analyze the neutrino-driven winds that emerge in 12 unprecedentedly long-duration 3D core-collapse supernova simulations done using the code F ornax .
Tianshu Wang, Adam Burrows
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Explosion Mechanism of Core-collapse Supernovae: Role of the Si/Si–O Interface
The Astrophysical Journal, 2023 We present a simple criterion to predict the explodability of massive stars based on the density and entropy profiles before collapse. If a pronounced density jump is present near the Si/Si–O interface, the star will likely explode.
Luca Boccioli +4 more
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The Astrophysical Journal, 2023 Type IIn/Ia-CSM supernovae (SNe IIn/Ia-CSM) are classified by their characteristic spectra, which exhibit narrow hydrogen emission lines originating from strong interaction with a circumstellar medium (CSM) together with broad lines of intermediate-mass ...
Kohki Uno +13 more
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