Carbon Burning: Theory, Astrophysics and Experiments

Session

Astrophysics III

1 Jul 2026, 14:30

Sala Conferenze di Palazzo del Monte di Pietà

17. Impact of 12C+12C on massive stars nucleosynthesis of the elements heavier than iron

Dr Marco Pignatari (Konkoly Observatory, Budapest, Hungary)

01/07/2026, 14:30

5. Impact of 12C+12C on massive stars nucleosynthesis in general

Dr Lorenzo Roberti (INAF - Osservatorio Astronomico di Palermo)

01/07/2026, 15:00

The 12C+12C reaction rate is a critical parameter for the evolution of massive stars during their burning stages before the core-collapse, yet its uncertainties significantly affect the final pre-supernova structure. Contrary to intuitive expectations, variations in this rate have a minor direct impact on the nucleosynthesis of elements up to the iron peak. Instead, the primary effect is...

1. Low mass density deflagration burning led to premature type Iax supernovae

Dr Amir Michaelis (Technion – Israel Institute of Technology)

01/07/2026, 15:30

The progenitor systems of normal type Ia supernovae (SNe Ia) remain a central puzzle. The long-debated single-degenerate (SD) channel, where a white dwarf (WD) accretes mass from a companion, faces major observational conflicts. The unknown rising form the carbon ignition and detonation mechanism in sub-Chandrasekhar mass led us to run 3D hydrodynamic simulations that address these tensions by...