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Impact of newly measured 26Al(n, p)26Mg and 26Al(n, α)23Na reaction rates on the nucleosynthesis of 26Al in stars
Umberto Battino, Claudia Lederer-Woods, Marco Pignatari +6
The cosmic production of the short-lived radioactive nuclide 26Al is crucial for our understanding of the evolution of stars and galaxies. However, simulations of the stellar sites…
Observational constraints on the origin of the elements. VI. Origin and evolution of neutron-capture elements as probed by the Gaia-ESO survey
Jianhui Lian, Nicholas Storm, Guillaume Guiglion +5
Most heavy elements beyond the iron peak are synthesized via neutron capture processes. The nature of the astrophysical sites of neutron capture processes is still very unclear. In…
C3PO: Towards a complete census of co-moving pairs of stars. I. High precision stellar parameters for 250 stars
David Yong, Fan Liu, Yuan-Sen Ting +6
We conduct a line-by-line differential analysis of a sample of 125 co-moving pairs of stars (dwarfs and subgiants near solar metallicity). We obtain high precision stellar paramete…
Bridging the Gap between Intermediate and Massive Stars II: for the most metal-rich stars and implications for Fe CCSNe rates
Giulia C. Cinquegrana, Meridith Joyce, Amanda I. Karakas
The minimum initial mass required for a star to explode as an Fe core collapse supernova, typically denoted , is an important quantity in stellar evolution because it…
The Pristine Inner Galaxy Survey (PIGS) VII: a discovery of the first inner Galaxy CEMP-r/s star
L. Mashonkina, A. Arentsen, D. S. Aguado +7
Well-studied very metal-poor (VMP, [Fe/H] < -2 ) stars in the inner Galaxy are few in number, and they are of special interest because they are expected to be among the oldest star…
Multiple Stellar Populations in Metal-Poor Globular Clusters with JWST: a NIRCam view of M92
Tuila Ziliotto, Antonino P. Milone, Anna F. Marino +10
Recent work on metal-intermediate globular clusters (GCs) with [Fe/H]= and has illustrated the theoretical behavior of multiple populations in photometric diagrams ob…