Formation of hot heavy nuclei in supernova explosions

Abstract

We point out that during the supernova II type explosion the thermodynamical condition of stellar matter between the protoneutron star and the shock front corresponds to the nuclear liquid-gas phase coexistence region, which can be investigated in nuclear multifragmentation reactions. We have demonstrated, that neutron-rich hot heavy nuclei can be produced in this region. The production of these nuclei may influence dynamics of the explosion and contribute to the synthesis of heavy elements.

arXiv comment6 pages with 4 figures

References in corpus (11)

• Composition and Structure of Protoneutron Stars
• Shell-model calculations of stellar weak interaction rates: II. Weak rates for nuclei in the mass range A=45-65 in supernovae environment
• The consequences of nuclear electron capture in core collapse supernovae
• Isoscaling in Light-Ion Induced Reactions and its Statistical Interpretation
• Thermodynamical features of multifragmentation in peripheral Au + Au Collisions at 35 A.MeV
• The Origin of the Heavy Elements: Recent Progress in the Understanding of the r-Process
• Characteristics of the fragments produced in central collisions of 129Xe+ natSn from 32 to 50 AMeV
• Neutrino Trapping in a Supernova and Ion Screening
• Statistical evolution of isotope composition of nuclear fragments
• Statistical Multifragmentation in Thermodynamic Limit
• Liquid-Gas Phase Transition of Supernova Matter and Its Relation to Nucleosynthesis

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