Radiogenic p-isotopes from type Ia supernova, nuclear physics uncertainties, and galactic chemical evolution compared with values in primitive meteorites

@article{Travaglio2014RadiogenicPF,
  title={Radiogenic p-isotopes from type Ia supernova, nuclear physics uncertainties, and galactic chemical evolution compared with values in primitive meteorites},
  author={Claudia Travaglio and Roberto Gallino and Thomas Rauscher and Nicolas Dauphas and Friedrich K. Roepke and W Hillebrandt},
  journal={The Astrophysical Journal},
  year={2014},
  volume={795},
  pages={141}
}
The nucleosynthesis of proton-rich isotopes is calculated for multi-dimensional Chandrasekhar-mass models of Type Ia supernovae (SNe Ia) with different metallicities. The predicted abundances of the short-lived radioactive isotopes {sup 92}Nb, {sup 97,} {sup 98}Tc, and {sup 146}Sm are given in this framework. The abundance seeds are obtained by calculating s-process nucleosynthesis in the material accreted onto a carbon-oxygen white dwarf from a binary companion. A fine grid of s-seeds at… 
View PDF on arXiv
28 Citations
Background Citations
9
Methods Citations
4
Results Citations
2

Figures and Tables from this paper

28 Citations

Citation Type

Citation Type

Uncertainties in the production of p nuclides in thermonuclear supernovae determined by Monte Carlo variations
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…
Role of core-collapse supernovae in explaining Solar System abundances of p nuclides
The production of the heavy stable proton-rich isotopes between 74Se and 196Hg -- the p nuclides -- is due to the contribution from different nucleosynthesis processes, activated in different types…
TESTING THE ROLE OF SNe Ia FOR GALACTIC CHEMICAL EVOLUTION OF p-NUCLEI WITH TWO-DIMENSIONAL MODELS AND WITH s-PROCESS SEEDS AT DIFFERENT METALLICITIES
The bulk of p isotopes is created in the gamma processes mainly by sequences of photodisintegrations and beta decays in explosive conditions in Type Ia supernovae (SNIa) or in core collapse…
Radioactive nuclei from cosmochronology to habitability
The production of proton-rich isotopes beyond iron: The γ-process in stars
Beyond iron, a small fraction of the total abundances in the Solar System is made of proton-rich isotopes, the p-nuclei. The clear understanding of their production is a fundamental challenge for…
Short-Lived Radioisotope ^{98}Tc Synthesized by the Supernova Neutrino Process.
TLDR
It is shown that, if the initial abundance were to be precisely measured, the ^{98}Tc nuclear cosmochronometer could be used to evaluate a much more precise value of the duration time from the last core-collapse supernova to the formation of the solar system.
Galactic Chemical Evolution of Radioactive Isotopes
The presence of short-lived ($\sim$\,Myr) radioactive isotopes in meteoritic inclusions at the time of their formation represents a unique opportunity to study the circumstances that led to the…
Origin of the p-process radionuclides 92Nb and 146Sm in the early solar system and inferences on the birth of the Sun
TLDR
Radioactive nuclei present in the early solar system are used to derive that at least 10 million years passed between the last of these explosions and the birth of the Sun, lending further support to the idea that the Sun was born in a massive star-forming region together with many thousands of stellar siblings.
Monte Carlo Investigation of the Ratios of Short-lived Radioactive Isotopes in the Interstellar Medium
Short-lived radioactive nuclei (SLR) with mean lives below ∼100 Myr provide us with unique insights into current galactic nucleosynthetic events, as well as events that contributed to the material of…
Nucleosynthesis imprints from different Type Ia supernova explosion scenarios and implications for galactic chemical evolution
We analyze the nucleosynthesis yields of various Type Ia supernova explosion simulations including pure detonations in sub- Chandrasekhar mass white dwarfs, double detonations and pure helium…
...
...

References

SHOWING 1-10 OF 78 REFERENCES
Supernova neutrino nucleosynthesis of the radioactive 92Nb observed in primitive meteorites
The isotope {sup 92}Nb decays to {sup 92}Zr with a half-life of 3.47 × 10{sup 7} yr. Although this isotope does not exist in the current solar system, initial abundance ratios for {sup 92}Nb/{sup…
Type Ia supernovae as sites of the p-process: two-dimensional models coupled to nucleosynthesis
Beyond Fe, there is a class of 35 proton-rich nuclides, between 74Se and 196Hg, called p-nuclei. They are bypassed by the s and r neutron capture processes and are typically 10-1000 times less…
Nucleosynthesis in massive stars with improved nuclear and stellar physics
We present the first calculations to follow the evolution of all stable nuclei and their radioactive progeni- tors in stellar models computed from the onset of central hydrogen burning through…
The U/Th production ratio and the age of the Milky Way from meteorites and Galactic halo stars
TLDR
The U/Th abundance ratio in meteorites can be used, in conjunction with observations of low-metallicity stars in the halo of the Milky Way, to determine the U/ Th production ratio very precisely, which can be use in future studies to constrain the possible nuclear mass formulae used in r-process calculations.
Neutron Capture in Low Mass Asymptotic Giant Branch Stars: Cross Sections and Abundance Signatures
Recently improved information on the stellar (n, γ) cross sections of neutron magic nuclei at N = 82, and in particular of 142Nd, turn out to represent a sensitive test for models of s-process…
Galactic Chemical Evolution of Heavy Elements: From Barium to Europium
We follow the chemical evolution of the Galaxy for elements from Ba to Eu, using an evolutionary model suitable for reproducing a large set of Galactic (local and nonlocal) and extragalactic…
GALACTIC EVOLUTION OF Sr, Y, AND Zr: A MULTIPLICITY OF NUCLEOSYNTHETIC PROCESSES
In this paper we follow the Galactic enrichment of three easily observed light n-capture elements: Sr, Y, and Zr. Input stellar yields have been first separated into their respective main and weak…
Nucleosynthesis in multi-dimensional SN Ia explosions
We present the results of nucleosynthesis calculations based on multi-dimensional (2D and 3D) hydrodynamical simulations of the thermonuclear burning phase in type Ia supernovae (hereafter SN Ia).…
Production of the p-Process Nuclei in the Carbon-Deflagration Model for Type Ia Supernovae
We calculate nucleosynthesis of proton-rich isotopes in the carbon-deflagration model for Type Ia supernovae (SNe Ia). The seed abundances are obtained by calculating the s-process nucleosynthesis…
EVOLUTION AND NUCLEOSYNTHESIS IN LOW-MASS ASYMPTOTIC GIANT BRANCH STARS. II. NEUTRON CAPTURE AND THE s-PROCESS
We present a new analysis of neutron capture occurring in low-mass asymptotic giant branch (AGB) stars suffering recurrent thermal pulses. We use dedicated evolutionary models for stars of initial…
...
...