255 citations · 1.8k across the 69 of their papers we have counts for
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Silicon Isotopic Composition of Mainstream Presolar SiC Grains Revisited: The Impact of Nuclear Reaction Rate Uncertainties
Hung Kwan Fok, Marco Pignatari, Benoît Côté +1
Presolar grains are stardust particles that condensed in the ejecta or in the outflows of dying stars and can today be extracted from meteorites. They recorded the nucleosynthetic…
High-temperature Tl decay clarifies Pb dating in early Solar System
G. Leckenby, R. S. Sidhu, R. J. Chen +56
Radioactive nuclei with lifetimes on the order of millions of years can reveal the formation history of the Sun and active nucleosynthesis occurring at the time and place of its bi…
Unveiling the chemical fingerprint of phosphorus-rich stars II. Heavy-element abundances from UVES/VLT spectra
Maren Brauner, Marco Pignatari, Thomas Masseron +2
The atmospheres of phosphorus-rich stars have been shown to contain between 10 and 100 times more P than our Sun. Given its crucial role as an essential element for life, it is esp…
Peculiarities of the chemical enrichment of metal-poor Stars in the Milky Way Galaxy
T. Mishenina, M. Pignatari, I. Usenko +5
The oldest stars in the Milky Way are metal-poor with [Fe/H] < -- 1.0, displaying peculiar elemental abundances compared to solar values. The relative variations in the chemical co…
The -process nucleosynthesis in core-collapse supernovae II. Effect of the explosive recipe
Lorenzo Roberti, Marco Pignatari, Chris L. Fryer +1
The -process in core-collapse supernovae (CCSNe) can produce a number of neutron-deficient stable isotopes heavier than iron (p-nuclei). However, current model predictions do to…
Modelling Triatomic Biosignatures: Ozone and Isotopomers
Thomas M. Cross, David M. Benoit, Marco Pignatari +1
In this work we present a new approach to produce spectroscopic constants and model first-principles synthetic spectra for all molecules of astrophysical interest. We have generali…