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Nuclei in the Cosmos - IX

25–30 Jun 2006
CERN, Geneva
Europe/Zurich timezone

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Session

12 Cosmology and BBN

29 Jun 2006, 11:30
CERN, Geneva

CERN, Geneva

Conveners

12 Cosmology and BBN

  • Richard N Boyd (National Science Foundation, USA)

Presentation materials

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  1. 282. Dark matter, dark energy & particle physics
    John Ellis (CERN)
    29/06/2006, 11:30
    Cosmology and big bang nucleosynthesis
    Invited
  2. 276. Type Ia Supernovae as Standard Candles
    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...
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  3. 200. When Stars Attack! Live Radioactivities as Signatures of Nearby Supernovae
    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...
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  4. 99. Electron capture reactions in neutron star crusts: deep heating and observational constraints
    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...
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  5. 242. Early Star Formation, Nucleosynthesis, and Chemical Evolution in Proto-Galactic Cloud
    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...
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