Conveners
12 Cosmology and BBN
- Richard N Boyd (National Science Foundation, USA)
John Ellis
(CERN)
29/06/2006, 11:30
Cosmology and big bang nucleosynthesis
Invited
Peter Garnavich
(University of Notre Dame)
29/06/2006, 12:00
Cosmology and big bang nucleosynthesis
Invited
Type Ia supernovae are believed to be thermonuclear explosions of carbon-oxygen
white dwarf stars. Observationally they show a wide range of light curve shapes and
peak luminosities at optical wavelengths. Fortunately their peak brightness
correlates with the decline rate of their light curve making them "standardizable"
candles with a precision of 7 to 10% in distance. At near infrared...
Brian Fields
(University of Illinois)
29/06/2006, 12:30
Element production, stellar evolution and stellar explosions
Oral contribution
Supernovae are critical for life in many ways, e.g., their
nucleosynthesis is the dominant cosmic source of heavy elements
essential for planet formation and ultimately for biology. Yet
supernovae take a more sinister shade when they occur closer to home,
because an explosion inside a certain "minimum safe distance" would
pose a grave threat to life on Earth. We will discuss these...
Edward Brown
(MIchigan State University/Joint Institute for Nuclear Astrophysics)
29/06/2006, 12:50
Element production, stellar evolution and stellar explosions
Oral contribution
Many neutron stars accrete H- and He-rich matter from a stellar companion. Over the lifetime of the binary,
enough matter can be transferred to replace the crust of neutron star. As the material is compressed, the rising
electron Fermi energy induces electron captures. We calculate the evolution of a fluid element being compressed
to neutron drip under conditions appropriate for the...
Grant Mathews
(Center for Astrophysics (CANDU), Department of Physics, University of Notre Dame, Notre Dame,)
29/06/2006, 13:10
Oral contribution
We present numerical simulations to describe the
nucleosynthesis and evolution of pre-Galactic clouds in a
model which is motivated by cold dark matter simulations of
hierarchical galaxy formation. We adopt a SN-induced
star-formation mechanism within a model that follows the
evolution of chemical enrichment and energy input to the
clouds by Type II and Type Ia supernovae.
We utilize...
