255 citations · 5.8k across the 143 of their papers we have counts for
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Precise measurement of the thermal and stellar Fe()Fe cross sections via AMS
Anton Wallner, Tamas Belgya, Kathrin Buczak +14
The detection of long-lived radionuclides through ultra-sensitive single atom counting via accelerator mass spectrometry (AMS) offers opportunities for precise measurements of neut…
The impact of (n,) reaction rate uncertainties of unstable isotopes near on the i process nucleosynthesis in He-shell flash white dwarfs
Pavel Denissenkov, Georgios Perdikakis, Falk Herwig +6
The first peak s-process elements Rb, Sr, Y and Zr in the post-AGB star Sakurai's object (V4334 Sagittarii) have been proposed to be the result of i-process nucleosynthesis in a po…
i-process nucleosynthesis and mass retention efficiency in He-shell flash evolution of rapidly accreting white dwarfs
Pavel Denissenkov, Falk Herwig, Umberto Battino +4
Based on stellar evolution simulations, we demonstrate that rapidly accreting white dwarfs in close binary systems are an astrophysical site for the intermediate neutron-capture pr…
JINA-NuGrid Galactic Chemical Evolution Pipeline
Benoit Côté, Christian Ritter, Falk Herwig +5
Galactic chemical evolution is a topic that involves nuclear physics, stellar evolution, galaxy evolution, observation, and cosmology. Continuous communication and feedback between…
Application of a Theory and Simulation based Convective Boundary Mixing model for AGB Star Evolution and Nucleosynthesis
U. Battino, M. Pignatari, C. Ritter +8
The -process nucleosynthesis in Asymptotic Giant Branch (AGB) stars depends on the modeling of convective boundaries. We present models and s-process simulations that adopt a tr…
The production of proton-rich isotopes beyond iron: The process in stars
Marco Pignatari, Kathrin Göbel, René Reifarth +1
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 fundamenta…
Re-evaluation of the O(,)O cross section at astrophysical energies and its role as neutron poison in the process
Peter Mohr, Christian Heinz, Marco Pignatari +3
The doubly-magic nucleus O has a small neutron capture cross section of just a few tens of microbarn in the astrophysical energy region. Despite of this, O plays an i…
Stellar Origins of Extremely - and -enriched Presolar SiC Grains: Novae or Supernovae?
Nan Liu, Larry R. Nittler, Conel M. O'D. Alexander +4
Extreme excesses of (/<10) and (/<20) in rare presolar SiC grains have been considered diagnostic of an origin in classical novae,…
The Diverse Origins of Neutron-Capture Elements in the Metal-Poor Star HD 94028: Possible Detection of Products of i-process Nucleosynthesis
Ian U. Roederer, Amanda I. Karakas, Marco Pignatari +1
We present a detailed analysis of the composition and nucleosynthetic origins of the heavy elements in the metal-poor ([Fe/H]=-1.62+/-0.09) star HD94028. Previous studies revealed…
Sensitivity study for s process nucleosynthesis in AGB stars
A. Koloczek, B. Thomas, J. Glorius +6
In this paper we present a large-scale sensitivity study of reaction rates in the main component of the process. The aim of this study is to identify all rates, which have a gl…
Origin of the p-process radionuclides 92Nb and 146Sm in the early Solar System and inferences on the birth of the Sun
Maria Lugaro, Marco Pignatari, Ulrich Ott +4
The abundances of 92Nb and 146Sm in the early Solar System are determined from meteoritic analysis and their stellar production is attributed to the p process. We investigate if th…