Results 1 to 10 of about 2,169 (225)
Dynamics of supernova bounce in laboratory [PDF]
Physical Review E, 2019 We draw attention to recent high explosive (HE) experiments which provide compression of macroscopic amount of matter to high, even record, values of pressure in comparison with other HE experiments. The observed bounce after the compression corresponds to processes in core-collapse supernova explosions after neutrino trapping.
S I Blinnikov, R I Ilkaev, M A Mochalov
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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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Neutrino–nucleus reactions and their role for supernova dynamics and nucleosynthesis [PDF]
Progress in Particle and Nuclear Physics, 2015 77 pages, 29 figures, 4 tables, submitted to Progress in Particle and Nuclear ...
G Martínez-Pinedo
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X-RAY MEASURED DYNAMICS OF TYCHO'S SUPERNOVA REMNANT [PDF]
Astrophysical Journal, 2010 We present X-ray proper-motion measurements of the forward shock and reverse-shocked ejecta in Tycho's supernova remnant, based on three sets of archival Chandra data taken in 2000, 2003, and 2007. We find that the proper motion of the edge of the remnant (i.e., the forward shock and protruding ejecta knots) varies from 0".20 yr^{-1} (expansion index m=
Satoru Katsuda +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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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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Dynamical Collective Calculation of Supernova Neutrino Signals [PDF]
Physical Review Letters, 2009 We present the first calculations with three flavors of collective and shock wave effects for neutrino propagation in core-collapse supernovae using hydroynamical density profiles and the S matrix formalism. We explore the interplay between the neutrino-neutrino interaction and the effects of multiple resonances upon the time signal of positrons in ...
Gava, J. +3 more
openaire +4 more sources
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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