Conveners
9 Element production, stellar evolution, and stellar explosions
- Verne V Smith (NOAO, Tucson)
Adam Burrows
(University of Arizona)
28/06/2006, 08:30
Element production, stellar evolution and stellar explosions
Oral contribution
Core-collapse supernova explosions are fundamentally aspherical and require multi-
dimensional radiation/hydrodynamical tools to address them.
Recent simulations have hinted that the inner core of the protoneutron star
executes vigorous g-mode oscillations that damp by the emission of acoustic power.
I will present results from our recent 2D simulations that explore such core...
Carla Frohlich
(University of Basel)
28/06/2006, 09:00
Element production, stellar evolution and stellar explosions
Oral contribution
A new nucleosynthesis process, that we denote $\nu p$-process, will be presented. It
occurs in supernovae (and possibly gamma-ray bursts) when strong neutrino fluxes
create proton-rich ejecta. In this process, antineutrino absorptions in the
proton-rich environment produce neutrons that are immediately captured by
neutron-deficient nuclei. This allows for the nucleosynthesis of nuclei...
Rebecca Surman
(Union College)
28/06/2006, 09:20
Element production, stellar evolution and stellar explosions
Oral contribution
Gamma-ray bursts, while rare, may be important contributors to galactic nucleosynthesis. Here we consider the
types of nucleosynthesis that can occur as material is ejected from a gamma-ray burst accretion disk. We
calculate the composition of material within the disk as it dissociates into protons and neutrons and then use a
parameterized outflow model to follow nuclear recombination...
Alessandro Chieffi
(INAF-Osservatorio Astronomico di Roma)
28/06/2006, 09:40
Element production, stellar evolution and stellar explosions
Oral contribution
I will review the presupernova evolution and the associated explosive
nucleosynthesis of massive stars with mass loss in the mass interval between 11 and
120 Msun. For the solar metallicity models i will address the following topics: 1)
the evolutionary properties of Wolf-Rayet stars and their comparison with
observations; 2) the chemical yields provided by a generation of core...
