Results 31 to 40 of about 2,169 (225)
Resonant neutrino spin-flavor precession and supernova nucleosynthesis and dynamics [PDF]
, 1997 We discuss the effects of resonant spin-flavor precession (RSFP) of Majorana neutrinos on heavy element nucleosynthesis in neutrino-heated supernova ejecta and the dynamics of supernovae.
Qian, Y-Z, Fuller, GM, Nunokawa, H
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Neutrino-nucleus reactions in supernovae
EPJ Web of Conferences, 2016 We study thermal effects on neutrino-nucleus reactions occurring under supernova conditions. The approach we use is based on the QRPA extended to finite temperature by the thermofield dynamics formalism. For the relevant supernova conditions we calculate
Dzhioev Alan A., Vdovin A.I.
doaj +1 more source
Dynamics of Fe Bubbles in Young Supernova Remnants [PDF]
The Astrophysical Journal, 2001 Observations of core-collapse supernovae (SNe) have revealed the presence of extensive mixing of radioactive material in SN ejecta. The mixing of radioactive material, mostly freshly synthesized Ni, is not complete, which leads to a two-phase SN ejecta structure. The low-density phase consists of Fe bubbles, created by the energy input from radioactive
Blondin, J. M. +2 more
openaire +2 more sources
Unified Dark Matter models with fast transition [PDF]
, 2010 We investigate the general properties of Unified Dark Matter (UDM) fluid models where the pressure and the energy density are linked by a barotropic equation of state (EoS) p = p(ρ) and the perturbations are adiabatic.
Davide Pietrobon +12 more
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Fluid dynamic mathematical aspects of supernova remnants
, 2023 Supernovae - explosions of stars - are a central problem in astrophysics since they contain information on the entire process of stellar evolution and nucleosynthesis.
Snezhana I. Abarzhi +13 more
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Dynamics of Kepler's supernova remnant
The Astrophysical Journal, 1992 Observations of Kepler's SNR have revealed a strong interaction with the ambient medium, far in excess of that expected at a distance of about 600 pc away from the Galactic plane where Kepler's SNR is located. This has been interpreted as a result of the interaction of supernova ejecta with the dense circumstellar medium (CSM).
Kazimierz J. Borkowski +2 more
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Neutrino treatment in multidimensional astrophysical simulations : a new spectral scheme [PDF]
, 2014 Neutrinos play a central role in modern physics and astrophysics. Their extremely weak interaction rate with baryons and other leptons makes their detection on the Earth difficult and challenging.
Perego, Albino
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Approaching the dynamics of hot nucleons in supernovae [PDF]
Nuclear Physics A, 2005 All recent numerical simulations agree that stars in the main sequence mass range of 9-40 solar masses do not produce a prompt hydrodynamic ejection of the outer layers after core collapse and bounce. Rather they suggest that stellar core collapse and supernova explosion are dynamically distinct astrophysical events, separated by an unspectacular ...
Liebendoerfer, M. +2 more
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Universe, 2021 We revisit the cosmological dynamics of the cubic Galileon model in light of the recently proposed model-independent analyses of the Pantheon supernova data.
Suddhasattwa Brahma, Md. Wali Hossain
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The origin of cosmic rays and TeV gamma-ray astronomy
EPJ Web of Conferences, 2013 Cosmic rays are accelerated to high energies in Galactic and extragalactic objects like Supernova remnants (SNR) and active galactic nuclei (AGN). How these accelerators work and how efficient they accelerate different types of particles to energies of ...
Maier Gernot
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