Nuclei in the Cosmos XV

Session

Stellar contribution: massive stars and CCSNe

28 Jun 2018, 11:30

"E. Fermi" conference room (LNGS)

Conveners

Stellar contribution: massive stars and CCSNe

• Hendrik Schatz (Michigan State University)

14. the evolution of massive stars: what we know and what we would like to know

Alessandro Chieffi (IAPS)

28/06/2018, 11:30

Invited

I will review the key properties of the evolution of massive stars from the pre main sequence up to the core bounce plus the follow up of the shock wave and the associated explosive nucleosynthesis. I will discuss in particular which are the weakest points in the predictive power of the present computations as a function of the mass, metallicity and initial rotation velocity.

190. Learning from Nucleosynthesis from Multi-dimensional simulations of Core-Collapse Supernovae

William Hix (Oak Ridge National Laboratory)

28/06/2018, 12:00

Invited

For more that two decades, we have understood that the development of a successful core-collapse supernova is inextricably linked to neutrino heating and three dimensional fluid flows, with large scale hydrodynamic instabilities allowing successful explosions that spherical symmetry would prevent. Unfortunately, our understanding of the nucleosynthesis that occurs in these supernovae, and...

130. CANCELLED - Multi-d core collapse supernovae and nucleosynthesis

Claudia Travaglio (INAF - OATO)

28/06/2018, 12:30

Oral

The explosion of massive stars as core-collapse supernovae represents one of the outstanding problems in modern astrophysics. Core-collapse supernovae figure prominently in the chemical evolution of galaxies as the dominant producers of elements between oxygen and the iron group, and they play an important role in the production of elements heavier than Fe. They represent a key ingredient in...

156. Bringing back core-collapse supernova explosions as r-process site

Tobias Fischer (University of Wroclaw)

28/06/2018, 12:45

Oral

Canonical core-collapse supernova explosions, driven by the neutrino-heating mechanism, are presently ruled out as nucleosynthesis site for the production of heavy elements. Detailed numerical studies, with accurate neutrino transport and a sophisticated treatment of weak processes included, have shown that the ejected material does not yield sufficient neutron excess [1] for the production of...

192. Nucleosynthesis in Core-Collapse Supernovae

Carla Frohlich (NC State University)

28/06/2018, 13:00

Oral

Core-collapse supernovae (CCSNe) are one of the most important nucleosynthesis sites and they hold a key role in the evolution of galaxies. In the explosion, CCSNe eject freshly synthesized iron-group nuclei from explosive burning alongside of intermediate mass elements (from hydrostatic and explosive burning) and carbon and oxygen from the pre-explosion evolution. In the neutrino-driven wind,...