Uncertainties in the production of p nuclides in thermonuclear supernovae determined by Monte Carlo variations

Abstract

Thermonuclear supernovae originating from the explosion of a white dwarf accreting mass from a companion star have been suggested as a site for the production of $p$ nuclides. Such nuclei are produced during the explosion, in layers enriched with seed nuclei coming from prior strong $s$ processing. These seeds are transformed to proton-richer isotopes mainly by photodisintegration reactions. Several thousand trajectories from a 2D explosion model were used in a Monte Carlo approach. Temperature-dependent uncertainties were assigned individually to thousands of rates varied simultaneously in post-processing in an extended nuclear reaction network. The uncertainties in the final nuclear abundances originating from uncertainties in the astrophysical reaction rates were determined. In addition to the 35 classical $p$ nuclides, abundance uncertainties were also determined for the radioactive nuclides ${}^{92}$Nb, ${}^{97,98}$Tc, ${}^{146}$Sm, and for the abundance ratios $Y$(${}^{92}$Mo)/$Y$(${}^{94}$Mo), $Y$(${}^{92}$Nb)/$Y$(${}^{92}$Mo), $Y$(${}^{97}$Tc)/$Y$(${}^{98}$Ru), $Y$(${}^{98}$Tc)/$Y$(${}^{98}$Ru), and $Y$(${}^{146}$Sm)/$Y$(${}^{144}$Sm), important for Galactic Chemical Evolution studies. Uncertainties found were generally lower than a factor of two, although most nucleosynthesis flows mainly involve predicted rates with larger uncertainties. The main contribution to the total uncertainties comes from a group of trajectories with high peak density originating from the interior of the exploding white dwarf. The distinction between low-density and high-density trajectories allows more general conclusions to be drawn, also applicable to other simulations of white dwarf explosions.

arXiv comment8 pages, 10 figures, 2 tables, MNRAS; minor revisions to match published version

References in corpus (19)

• Nucleosynthesis in Massive Stars With Improved Nuclear and Stellar Physics
• Neutron capture in low mass Asymptotic Giant Branch stars: cross sections and abundance signatures
• Astrophysical Reaction Rates From Statistical Model Calculations
• The Diversity of Type Ia Supernovae from Broken Symmetries
• Constraining the astrophysical origin of the p-nuclei through nuclear physics and meteoritic data
• Extension of the MURaM radiative MHD code for coronal simulations
• Type Ia Supernovae and the Hubble Constant
• Type Ia Supernovae: Their Origin and Possible Applications in Cosmology
• Type Ia Supernovae as Sites of p-process: Two-Dimensional Models Coupled to Nucleosynthesis
• Constraints on the Progenitors of SNeIa & Implications for the Cosmological Equation of State
• Full-star Type Ia supernova explosion models
• Databases and tools for nuclear astrophysics applications BRUSsels Nuclear LIBrary (BRUSLIB), Nuclear Astrophysics Compilation of REactions II (NACRE II) and Nuclear NETwork GENerator (NETGEN)
• The production of proton-rich isotopes beyond iron: The $\gamma$ process in stars
• Uncertainties in the production of $p$ nuclei in massive stars obtained from Monte Carlo variations
• Survival of Nature's Rarest Isotope 180Ta under Stellar Conditions
• Uncertainties in s-process nucleosynthesis in massive stars determined by Monte Carlo variations
• 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
• Radiogenic p-isotopes from SNIa, nuclear physics uncertainties and Galactic chemical evolution compared with values in primitive meteorites

Cited by in corpus (31)

• Origin of the Heaviest Elements: the Rapid Neutron-Capture Process
• Role of core-collapse supernovae in explaining Solar System abundances of p nuclides
• Approaching the Gamow window with stored ions: Direct measurement of ${}^{124}$Xe(p,$\gamma$) in the ESR storage ring
• Horizons: Nuclear Astrophysics in the 2020s and Beyond
• Uncertainties in s-process nucleosynthesis in low mass stars determined from Monte Carlo variations
• Successful prediction of total $\alpha$-induced reaction cross sections at astrophysically relevant sub-Coulomb energies using a novel approach
• Uncertainties in $\nu$p-process nucleosynthesis from Monte Carlo variation of reaction rates
• The $\gamma$-process nucleosynthesis in core-collapse supernovae. I. A novel analysis of $\gamma$-process yields in massive stars
• r-Process Radioisotopes from Near-Earth Supernovae and Kilonovae
• Determination of the photodisintegration reaction rates involving charged particles: systematical calculations and proposed measurements based on Extreme Light Infrastructure - Nuclear Physics (ELI-NP)
• Heavy Elements Nucleosynthesis On Accreting White Dwarfs: building seeds for the p-process
• alpha-induced reactions on 115In: cross section measurements and statistical model analysis
• First Direct Measurement of an Astrophysical p-Process Reaction Cross Section Using a Radioactive Ion Beam
• Cross section of $\alpha$-induced reactions on ${}^{197}$Au at sub-Coulomb energies
• Enrichment of the Galactic disc with neutron-capture elements: Mo and Ru
• Feasibility of studying astrophysically important charged-particle emission with the variable energy $\gamma$-ray system at the Extreme Light Infrastructure -- Nuclear Physics facility
• Observational constraints on the origin of the elements. VI. Origin and evolution of neutron-capture elements as probed by the Gaia-ESO survey
• Measurements of ${}^{160}$Dy($p,\gamma$) at energies relevant for astrophysical $\gamma$ process
• Cross Sections of the ${}^{83}$Rb(p,$\gamma {)}^{84}$Sr and ${}^{84}$Kr(p,$\gamma {)}^{85}$Rb Reactions at Energies Characteristic of the Astrophysical $\gamma$ Process
• Cross Section Measurement of the ${}^{82}$Kr(p,$\gamma$)${}^{83}$Rb Reaction in Inverse Kinematics
• Measurement of the 91Zr(p,gamma)92mNb cross section motivated by type Ia supernova nucleosynthesis
• Abundances of disk and bulge giants from high-resolution optical spectra V. Molybdenum -- the p-process element
• Impact of Uncertainties in Astrophysical Reaction Rates on Nucleosynthesis in the $\nu p$ Process
• The s-process nucleosynthesis in low mass stars: impact of the uncertainties in the nuclear physics determined by Monte Carlo variations
• Neutrinos and Heavy Element Nucleosynthesis
• Determination of ${}^{170,172}$Yb($\alpha ,n$)${}^{173,175}$Hf reaction cross sections in a stacked-target experiment
• Monte Carlo variations as a tool to assess nuclear physics uncertainties in nucleosynthesis studies
• Uncertainties in the production of p nuclides in SN Ia determined by Monte Carlo variations
• Impact of Uncertainties in Nuclear Reaction Cross Sections on p-Nucleosynthesis in Thermonuclear Supernovae
• Precision mass measurement of ${}^{173}$Hf for nuclear structure of ${}^{173}$Lu and the $\gamma$ process
• Uncertainties in the production of iron-group nuclides in core-collapse supernovae from Monte Carlo variations of reaction rates