The production of proton-rich isotopes beyond iron: The $\gamma$ process in stars

Abstract

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 nuclear astrophysics. The p nuclei constrain the nucleosynthesis in core-collapse and thermonuclear supernovae. The $\gamma$ process is the most established scenario for the production of the p nuclei, which are produced via different photodisintegration paths starting on heavier nuclei. A large effort from nuclear physics is needed to access the relevant nuclear reaction rates far from the valley of stability. This review describes the production of the heavy proton-rich isotopes by the $\gamma$ process in stars, and explores the state of the art of experimental nuclear physics to provide nuclear data for stellar nucleosynthesis.

arXiv comment51 pages, 14 figures, invited review

References in corpus (114)

• The chemical composition of the Sun
• Evolution of asymptotic giant branch stars II. Optical to far-infrared isochrones with improved TP-AGB models
• Type Ia Supernova Explosion Models
• Compact Remnant Mass Function: Dependence on the Explosion Mechanism and Metallicity
• Pre-Supernova Evolution of Massive Single and Binary Stars
• 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 s Process: Nuclear Physics, Stellar Models, Observations
• Nearby Supernova Rates from the Lick Observatory Supernova Search. II. The Observed Luminosity Functions and Fractions of Supernovae in a Complete Sample
• Thermonuclear (type-I) X-ray bursts observed by the Rossi X-ray Timing Explorer
• Shell-model calculations of stellar weak interaction rates: II. Weak rates for nuclei in the mass range A=45-65 in supernovae environment
• The Dawes Review 2: Nucleosynthesis and stellar yields of low and intermediate-mass single stars
• Galactic Evolution of Sr, Y, Zr: A Multiplicity of Nucleosynthetic Processes
• Three-dimensional delayed-detonation models with nucleosynthesis for Type Ia supernovae
• Nuclear weak-interaction processes in stars
• Progenitor-Explosion Connection and Remnant Birth Masses for Neutrino-Driven Supernovae of Iron-Core Progenitors
• Perspectives on Core-Collapse Supernova Theory
• Thermonuclear Supernovae: Simulations of the Deflagration Stage and Their Implications
• Models for Type I X-Ray Bursts with Improved Nuclear Physics
• On Variations in the Peak Luminosity of Type Ia Supernovae
• Where, oh where has the r-process gone?
• Constraining the astrophysical origin of the p-nuclei through nuclear physics and meteoritic data
• s Process in low-mass Asymptotic Giant Branch Stars
• Electron-capture supernovae as the origin of elements beyond iron
• Three-Dimensional Simulations of Core-Collapse Supernovae: From Shock Revival to Shock Breakout
• Double-detonation supernovae of sub-Chandrasekhar mass white dwarfs
• The s-Process in Low Metallicity Stars. II. Interpretation of High-Resolution Spectroscopic Observations with AGB models
• $s$-process production in rotating massive stars at solar and low metallicities
• The rp Process Ashes from Stable Nuclear Burning on an Accreting Neutron Star
• Convective-reactive proton-C12 combustion in Sakurai's object (V4334 Sagittarii) and implications for the evolution and yields from the first generations of stars
• Constraining Type Ia supernova models: SN 2011fe as a test case
• Three-dimensional simulations of type Ia supernovae
• Towards Realistic Progenitors of Core-Collapse Supernovae
• Charged-Particle and Neutron-Capture Processes in the High-Entropy Wind of Core-Collapse Supernovae
• Production of Light Element Primary Process nuclei in neutrino-driven winds
• The s process in massive stars at low metallicity. Effect of primary N14 from fast rotating stars
• Molybdenum Evidence for Inherited Planetary Scale Isotope Heterogeneity of the Protosolar Nebula
• The rp-Process in Neutrino-driven Winds
• Maximum Brightness and Post-Maximum Decline of Light Curves of SN~Ia: A Comparison of Theory and Observations
• Type Ia Supernovae as Sites of p-process: Two-Dimensional Models Coupled to Nucleosynthesis
• Sensitivity of p-Process Nucleosynthesis to Nuclear Reaction Rates in a 25 Solar Mass Supernova Model
• Constraints on the Progenitors of SNeIa & Implications for the Cosmological Equation of State
• A perspective from extinct radionuclides on a Young Stellar Object: The Sun and its accretion disk
• Neutron Reactions in Astrophysics
• Probing the Neutron-Capture Nucleosynthesis History of Galactic Matter
• Integrated Nucleosynthesis in Neutrino Driven Winds
• s-Process Nucleosynthesis in Advanced Burning Phases of Massive Stars
• The Path to Improved Reaction Rates for Astrophysics
• Branchings in the gamma-process path revisited
• The 12C + 12C reaction and the impact on nucleosynthesis in massive stars
• Models of Type I X-ray Bursts from GS 1826-24: A Probe of rp-Process Hydrogen Burning
• Nucleosynthesis in Type I X-ray Bursts
• Nucleosynthesis Modes in the High-Entropy-Wind of Type II Supernovae: Comparison of Calculations with Halo-Star Observations
• Estimates of Stellar Weak Interaction Rates for Nuclei in the Mass Range A=65-80
• Nuclear Astrophysics with Radioactive Beams
• Barium Isotopic Composition of Mainstream Silicon Carbides from Murchison: Constraints for s-Process Nucleosynthesis in AGB Stars
• Metallicity effect in multi-dimensional SNIa nucleosynthesis
• New insights on Ba over-abundance in open clusters. Evidence for the intermediate neutron-capture process at play?
• Reaction rates for the s-process neutron source 22Ne+α
• Carbon-rich presolar grains from massive stars. Subsolar 12C/13C and 14N/15N ratios and the mystery of 15N
• Nuclear Physics Experiments with Ion Storage Rings
• Odd p isotope 113In: Measurement of alpha-induced reactions
• Nucleosynthesis in thermonuclear supernovae with tracers: convergence and variable mass particles
• Measurements of neutron-induced reactions in inverse kinematics
• Nucleosynthesis of s-elements in zero-metal AGB stars
• A Long, Cold, Early r-process? Neutrino-induced Nucleosynthesis in He Shells Revisited
• Evolution of Stars and Gas in Galaxies
• First Measurement of the ${}^{96}$Ru(p,$\gamma$)${}^{97}$Rh Cross Section for the p-Process with a Storage Ring
• Dependence of S-Process Nucleosynthesis in Massive Stars on Triple-Alpha and 12C(a,g)16O Reaction Rate Uncertainties
• Lifetimes of 26Al and 34Cl in an astrophysical plasma
• Survival of Nature's Rarest Isotope 180Ta under Stellar Conditions
• Supernova electron capture rates for 55Co and 56Ni
• BRUSLIB and NETGEN: the Brussels nuclear reaction rate library and nuclear network generator for astrophysics
• The 14C(n,g) cross section between 10 keV and 1 MeV
• He-detonation in sub-Chandrasekhar CO white dwarfs: a new insight into energetics and p-process nucleosynthesis
• Low-energy cross section of the 7Be(p,g)8B solar fusion reaction from Coulomb dissociation of 8B
• Production of the p-Process Nuclei in the Carbon-Deflagration Model for Type Ia Supernovae
• The s-process branching at 185W
• Testing the role of SNe Ia for Galactic chemical evolution of p-nuclei with 2D models and with s-process seeds at different metallicities
• Production of carbon-rich presolar grains from massive stars
• Short-lived p-nuclides in the early solar system and implications on the nucleosynthetic role of X-ray binaries
• Radiogenic p-isotopes from SNIa, nuclear physics uncertainties and Galactic chemical evolution compared with values in primitive meteorites
• Origin of the p-process radionuclides 92Nb and 146Sm in the early Solar System and inferences on the birth of the Sun
• 70Ge(p,gamma)71As and 76Ge(p,n)76As cross sections for the astrophysical p process: sensitivity of the optical proton potential at low energies
• Relics of ancient post-AGB stars in a primitive meteorite
• Nuclear shell effects near the r-process path
• Alpha induced reaction cross section measurements on 162Er for the astrophysical gamma process
• On the origin of the lightest Molybdenum isotopes
• Empirical Abundance Scaling Laws and Implications for the Gamma-Process in Core-Collapse Supernovae
• Solution of the alpha-potential mystery in the gamma-process and its impact on the Nd/Sm ratio in meteorites
• Investigation of the reaction 74Ge(p,gamma)75As using the in-beam method to improve reaction network predictions for p nuclei
• Silicon carbide grains of type C provide evidence for the production of the unstable isotope ${}^{32}$Si in supernovae
• Solving the stellar 62Ni problem with AMS
• 128Xe and 130Xe: Testing He-shell burning in AGB stars
• Molybdenum, Ruthenium, and the Heavy r-process Elements in Moderately Metal-Poor Main-Sequence Turnoff Stars
• Experimental cross sections of 165Ho(α,n)168Tm and 166Er(α,n)169Yb for optical potential studies relevant for the astrophysical γ-process
• The photospheric solar oxygen project: III. Investigation of the centre-to-limb variation of the 630nm [OI]-NiI blend
• Massive Star Evolution: Nucleosynthesis and Nuclear Reaction Rate Uncertainties
• Nucleosynthesis in Neutrino-Driven Supernovae
• Measurements of proton induced reaction cross sections on 120Te for the astrophysical p-process
• Opportunities for Nuclear Astrophysics at FRANZ
• Massive Stars and their Supernovae
• Freeze-out yields of radioactivities in core-collapse supernovae
• Stellar (n,gamma) cross sections of p-process isotopes PartI: 102Pd, 120Te, 130,132Ba,and 156Dy
• Thermonuclear explosions of Chandrasekhar-mass C+O white dwarfs
• Neutron capture measurements at a RIA-type facility
• New attempts to understand nanodiamond stardust
• Nucleosynthesis simulations for the production of the p-nuclei ${}^{\text{92}}$Mo and ${}^{\text{94}}$Mo in a Supernova type II model
• The i-process and CEMP-r/s stars
• The synthesis of the light Mo and Ru isotopes: how now, no need for an exotic solution ?
• Neutrino Nucleosynthesis of radioactive nuclei in supernovae
• Presolar Diamond in Meteorites
• Nucleosynthesis of molybdenum in neutrino-driven winds

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• NuGrid Stellar Data Set. II. Stellar Yields from H to Bi for Stellar Models with Mzams = 1 to 25Msun and Z = 0.0001 to 0.02
• Radioactive nuclei from cosmochronology to habitability
• Uncertainties in the production of $p$ nuclei in massive stars obtained from Monte Carlo variations
• Magnetorotational supernovae: A nucleosynthetic analysis of sophisticated 3D models
• Convective-reactive nucleosynthesis of K, Sc, Cl and p-process isotopes in O-C shell mergers
• The s Process and Beyond
• Role of core-collapse supernovae in explaining Solar System abundances of p nuclides
• Nucleosynthesis in thermonuclear supernovae
• Uncertainties in the production of p nuclides in thermonuclear supernovae determined by Monte Carlo variations
• Horizons: Nuclear Astrophysics in the 2020s and Beyond
• Neutrinos and nucleosynthesis of elements
• Successful prediction of total $\alpha$-induced reaction cross sections at astrophysically relevant sub-Coulomb energies using a novel approach
• Production of Mo and Ru isotopes in neutrino-driven winds: implications for solar abundances and presolar grains
• The physics of Core-Collapse Supernovae: explosion mechanism and explosive nucleosynthesis
• The $\gamma$-process nucleosynthesis in core-collapse supernovae. I. A novel analysis of $\gamma$-process yields in massive stars
• Treatment of isomers in nucleosynthesis codes
• Determination of the photodisintegration reaction rates involving charged particles: systematical calculations and proposed measurements based on Extreme Light Infrastructure - Nuclear Physics (ELI-NP)
• Nuclear processes in Astrophysics: Recent progress
• Radioactive nuclei in the early Solar System: analysis of the 15 isotopes produced by core-collapse supernovae
• Enrichment of the Galactic disc with neutron capture elements: Sr
• Enrichment of the Galactic disc with neutron-capture elements: Mo and Ru
• Production of $p$-nuclei from $r$-process seeds: the $\nu r$-process
• Cross-section measurements of radiative proton-capture reactions in ${}^{112}$Cd at energies of astrophysical interest
• Feasibility of studying astrophysically important charged-particle emission with the variable energy $\gamma$-ray system at the Extreme Light Infrastructure -- Nuclear Physics facility
• The Occurrence and Impact of Carbon-Oxygen Shell Mergers in Massive Stars
• First Proton-Induced Cross Sections on a Stored Rare Ion Beam: Measurement of 118Te(p,γ) for Explosive Nucleosynthesis
• Alpha decay law of excited nuclei and its role in stellar decay rates
• The $\gamma$-process nucleosynthesis in core-collapse supernovae II. Effect of the explosive recipe
• The s process in massive stars, a benchmark for neutron capture reaction rates
• Nucleosynthesis of ${}^{92}$Nb and the relevance of the low-lying isomer at 135.5 keV
• Study of Gamow-Teller strength and associated weak-rates on odd-A nuclei in stellar matter
• Abundances of disk and bulge giants from high-resolution optical spectra V. Molybdenum -- the p-process element
• An Investigation of radiative proton-capture reactions in the Cd-In mass region
• Constraining the Synthesis of the Lightest p Nucleus 74Se
• Hypothesis about Enrichment of Solar System
• Abundance Uncertainties Obtained With the PizBuin Framework For Monte Carlo Reaction Rate Variations
• Determination of ${}^{170,172}$Yb($\alpha ,n$)${}^{173,175}$Hf reaction cross sections in a stacked-target experiment
• Strontium-84 Enrichments in Presolar Grains Provide First Evidence of p-process Nucleosynthesis in Core-collapse Supernovae
• "In-System" Fission-Events: An Insight into Puzzles of Exoplanets and Stars?
• Neutron-induced reactions in nuclear astrophysics
• Impact of the latest 22Ne+α reaction rates on nucleosynthesis in massive stars and galactic chemical evolution
• Masses of short-lived ${}^{49}Sc$, ${}^{50}Sc$, ${}^{70}As$, ${}^{73}Br$ and stable ${}^{196}Hg$ nuclides