Impact of hypernova νp-process nucleosynthesis on the galactic chemical evolution of Mo and Ru

Abstract

We calculate Galactic Chemical Evolution (GCE) of Mo and Ru by taking into account the contribution from $\nu p$-process nucleosynthesis. We estimate yields of $p$-nuclei such as ${}^{92,94}\mathrm{Mo}$ and ${}^{96,98}\mathrm{Ru}$ through the $\nu p$-process in various supernova (SN) progenitors based upon recent models. In particular, the $\nu p$-process in energetic hypernovae produces a large amount of $p$-nuclei compared to the yield in ordinary core-collapse SNe. Because of this the abundances of ${}^{92,94}\mathrm{Mo}$ and ${}^{96,98}\mathrm{Ru}$ in the Galaxy are significantly enhanced at [Fe/H]=0 by the $\nu p$-process. We find that the $\nu p$-process in hypernovae is the main contributor to the elemental abundance of ${}^{92}$Mo at low metallicity [Fe/H$]<-2$. Our theoretical prediction of the elemental abundances in metal-poor stars becomes more consistent with observational data when the $\nu p$-process in hypernovae is taken into account.

arXiv comment15 pages, 5 figures, accepted for publication in ApJ

References in corpus (37)

• On the variation of the Initial Mass Function
• Discovery of the peculiar supernova 1998bw in the error box of GRB980425
• Galactic Chemical Evolution: Hydrogen Through Zinc
• A `Hypernova' model for SN 1998bw associated with gamma-ray burst of 25 April 1998
• Neutrino-induced nucleosynthesis of A>64 nuclei: The nu p-process
• One Hundred First Stars : Protostellar Evolution and the Final Masses
• The Neutron Star Mass-Radius Relation and the Equation of State of Dense Matter
• The Stellar Abundances for Galactic Archeology (SAGA) Database - Compilation of the Characteristics of Known Extremely Metal-Poor Stars
• Galactic Chemical Evolution and solar s-process abundances: dependence on the 13C-pocket structure
• The Overarching Framework of Core-Collapse Supernova Explosions as Revealed by 3D Fornax Simulations
• Nucleosynthesis in Early Supernova Winds II: The Role of Neutrinos
• General relativistic effects on neutrino-driven wind from young, hot neutron star and the r-process nucleosynthesis
• Molybdenum Evidence for Inherited Planetary Scale Isotope Heterogeneity of the Protosolar Nebula
• The rp-Process in Neutrino-driven Winds
• The r-process in proto-neutron-star wind revisited
• Nucleosynthesis in the Innermost Ejecta of Neutrino-Drive Supernova Explosions in Two Dimensions
• Type Ia Supernovae as Sites of p-process: Two-Dimensional Models Coupled to Nucleosynthesis
• Revisiting the Lick Observatory Supernova Search Volume-Limited Sample: Updated Classifications and Revised Stripped-Envelope Supernova Fractions
• Neutrino Mixing and Nucleosynthesis in Core-Collapse Supernovae
• Uncertainties in the nu p-process: supernova dynamics versus nuclear physics
• Enrichment of the r-process Element Europium in the Galactic Halo
• r-Process Calculations and Galactic Chemical Evolution
• Core-collapse supernova neutrino emission and detection informed by state-of-the-art three-dimensional numerical models
• Potential Impact of Fast Flavor Oscillations on Neutrino-driven Winds and Their Nucleosynthesis
• Evidence for nucleosynthesis in supernova $\gamma$-process: Universal scaling on p-nuclei
• Role of core-collapse supernovae in explaining Solar System abundances of p nuclides
• He-detonation in sub-Chandrasekhar CO white dwarfs: a new insight into energetics and p-process nucleosynthesis
• Production of the p-Process Nuclei in the Carbon-Deflagration Model for Type Ia Supernovae
• Testing the role of SNe Ia for Galactic chemical evolution of p-nuclei with 2D models and with s-process seeds at different metallicities
• Possible effects of collective neutrino oscillations in the three flavor multi-angle simulations on supernova $\nu p$ process
• Impact of supernova dynamics on the νp-process
• Production of Mo and Ru isotopes in neutrino-driven winds: implications for solar abundances and presolar grains
• High-entropy ejecta plumes in Cassiopeia A from neutrino-driven convection
• Uncertainties in $\nu$p-process nucleosynthesis from Monte Carlo variation of reaction rates
• Empirical Abundance Scaling Laws and Implications for the Gamma-Process in Core-Collapse Supernovae
• Nucleosynthesis in neutrino-driven winds in hypernovae
• Nucleosynthesis signatures of neutrino-driven winds from proto-neutron stars: a perspective from chemical evolution models

Cited by in corpus (10)

• Collective neutrino oscillations and heavy-element nucleosynthesis in supernovae: exploring potential effects of many-body neutrino correlations
• Slow Neutron-Capture Process: Low-mass AGB stars and presolar silicon carbide grains
• Non-iterative finite amplitude methods for E1 and M1 giant resonances
• QRPA calculations for M1 transitions with the noniterative finite amplitude method and the application to neutron radiative capture cross sections
• The $\gamma$-process nucleosynthesis in core-collapse supernovae II. Effect of the explosive recipe
• Impacts of Black-Hole-Forming Supernova Explosions on the Diffuse Neutrino Background
• Neutrinos and Heavy Element Nucleosynthesis
• Successful $\nu p$-process in neutrino-driven outflows in core-collapse supernovae
• Photo-nuclear reaction rates of ${}^{157,159}$Ho and ${}^{163,165}$Tm and their impact in the $\gamma$--process
• Impact of microscopic structural transitions on particle stability and lifetimes of hot nuclei