Slow Neutron-Capture Process: Low-mass AGB stars and presolar silicon carbide grains

Abstract

Presolar grains are microscopic dust grains that formed in the stellar winds or explosions of ancient stars that died before the formation of the solar system. The majority (~90% in number) of presolar silicon carbide (SiC) grains, including types mainstream (MS), Y, and Z, came from low-mass C-rich asymptotic giant branch (AGB) stars, which is supported by the ubiquitous presence of SiC dust observed in the circumstellar envelope of AGB stars and the signatures of slow neutron-capture process preserved in these grains. Here, we review the status of isotope studies of presolar AGB SiC grains with an emphasis on heavy-element isotopes and highlight the importance of presolar grain studies for nuclear astrophysics. We discuss the sensitives of different types of nuclei to varying AGB stellar parameters and how their abundances in presolar AGB SiC grains can be used to provide independent, detailed constraints on stellar parameters, including 13C formation, stellar temperature, and nuclear reaction rates.

arXiv commentAccepted by Universe

References in corpus (50)

• Neutron capture in low mass Asymptotic Giant Branch stars: cross sections and abundance signatures
• The s Process: Nuclear Physics, Stellar Models, Observations
• The Emergence of a Lanthanide-Rich Kilonova Following the Merger of Two Neutron Stars
• Evolution, nucleosynthesis and yields of low mass AGB stars
• Nucleosynthesis and mixing on the Asymptotic Giant Branch. III. Predicted and observed s-process abundances
• Evolution, nucleosynthesis and yields of low mass AGB stars at different metallicities (II): the FRUITY database
• Stellar yields from metal-rich asymptotic giant branch models
• s Process in low-mass Asymptotic Giant Branch Stars
• Current Status of r-Process Nucleosynthesis
• Presolar Grains from Novae
• The s-Process in Rotating Asymptotic Giant Branch Stars
• The effects of rotation on the s-process nucleosynthesys in Asymptotic Giant Branch stars
• Galactic Evolution of Silicon Isotopes: Application to Presolar SiC Grains From Meteorites
• The Branchings of the Main s-process: Their Sensitivity to alpha-induced Reactions on 13C and 22Ne and to the Uncertainties of the Nuclear Network
• Barium Isotopic Composition of Mainstream Silicon Carbides from Murchison: Constraints for s-Process Nucleosynthesis in AGB Stars
• Reaction rates for the s-process neutron source 22Ne+α
• $s$-Processing in AGB Stars Revisited. II. Enhanced ${}^{13}$C Production Through MHD-Induced Mixing
• The Isotopic Mixture of Barium in the Metal-poor Subgiant HD 140283
• Application of a Theory and Simulation based Convective Boundary Mixing model for AGB Star Evolution and Nucleosynthesis
• Silicon carbide absorption features: dust formation in the outflows of extreme carbon stars
• Correlated Strontium and Barium Isotopic Compositions of Acid-Cleaned Single Silicon Carbides from Murchison
• Magnetic-buoyancy Induced Mixing in AGB Stars: Presolar SiC Grains
• Extremely ${}^{54}$Cr- and ${}^{50}$Ti-rich presolar oxide grains in a primitive meteorite: Formation in rare types of supernovae and implications for the astrophysical context of solar system birth
• MHD and deep mixing in evolved stars. 1. 2D and 3D analytical models for the AGB
• NuGrid stellar data set - III. Updated low-mass AGB models and s-process nucleosynthesis with metallicities Z=0.01, Z=0.02 and Z=0.03
• Stellar Origins of Extremely ${}^{\text{13}}C$- and ${}^{15}N$-enriched Presolar SiC Grains: Novae or Supernovae?
• The importance of the 13C(alpha,n)16O reaction in Asymptotic Giant Branch stars
• Neutron-induced cross sections -- from raw data to astrophysical rates
• Re-evaluation of the ${}^{22}$Ne($\alpha ,\gamma$)${}^{26}$Mg and ${}^{22}$Ne($\alpha ,n$)${}^{25}$Mg reaction rates
• The effect of stellar evolution on SiC dust grain sizes
• s-Processing in AGB Stars Revisited. III. Neutron captures from MHD mixing at different metallicities and observational constraints
• Do meteoritic silicon carbide grains originate from asymptotic giant branch stars of super-solar metallicity?
• Presolar grain isotopic ratios as constraints to nuclear and stellar parameters of AGB nucleosynthesis
• J-type carbon stars: A dominant source of 14N-rich presolar SiC grains of type AB
• Late formation of silicon carbide in type II supernovae
• Magnetic-buoyancy-induced mixing in AGB Stars: fluorine nucleosynthesis at different metallicities
• Origin of large meteoritic SiC stardust grains in metal-rich AGB stars
• New constraints on the major neutron source in low-mass AGB stars
• Presolar Silicon Carbide Grains of Types Y and Z: Their Molybdenum Isotopic Compositions and Stellar Origins
• Decoding the message from meteoritic stardust silicon carbide grains
• Constraining the ${}^{22}$Ne($\alpha$,$\gamma$)${}^{26}$Mg and ${}^{22}$Ne($\alpha$,n)${}^{25}$Mg reaction rates using sub-Coulomb $\alpha$-transfer reactions
• Stellar evolution of low and intermediate-mass stars. IV. Hydrodynamically-based overshoot and nucleosynthesis in AGB stars
• On the mass and metallicity distribution of parent AGB stars of presolar SiC
• Cluster analysis of presolar silicon carbide grains: evaluation of their classification and astrophysical implications
• The stellar beta-decay rate of 134Cs and its impact on the Barium nucleosynthesis in the s process
• Theoretical estimate of the half-life for the radioactive ${}^{134}$Cs and ${}^{135}$Cs in astrophysical scenarios
• Impact of hypernova νp-process nucleosynthesis on the galactic chemical evolution of Mo and Ru
• New Multielement Isotopic Compositions of Presolar SiC Grains: Implications for Their Stellar Origins
• The effects of a revised ${}^7$Be e${}^{-}$-capture rate on solar neutrino fluxes
• The luminosity constraint in the era of precision solar physics

Cited by in corpus (3)

• Presolar Silicon Carbide Grains of Types Y and Z: Their Strontium and Barium Isotopic Compositions and Stellar Origins
• Presolar grains
• Nuclear astrophysics