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Models and Theory of Type Ia Supernovae

July 26, 2011

calder

Alan Calder

SUNY - Stony Brook

Models and Theory of Type Ia Supernovae

Type Ia supernovae are bright stellar explosions that form a
homogeneous class of objects used as distance indicators for
cosmological studies.  Despite this use, many fundamental
questions about the progenitor systems, the explosion mechanism,
and the influence of the host stellar population remain. I will
present simulations of these events and the insight we gained
from the study. I will describe the modeling process, including
the role of capacity and capability simulations, patterns of work
flow, and the use of visualization techniques.  I will describe
how our study offers a theoretical explanation for observed
trends in brightness with age and color of the host galaxy.

Type Ia supernovae are bright stellar explosions that form a homogeneous class of objects used as distance indicators for cosmological studies. Despite this use, many fundamental questions about the progenitor systems, the explosion mechanism, and the influence of the host stellar population remain. I will present simulations of these events and the insight we gained from the study. I will describe the modeling process, including the role of capacity and capability simulations, patterns of work flow, and the use of visualization techniques. I will describe how our study offers a theoretical explanation for observed trends in brightness with age and color of the host galaxy.

 


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The National Energy Research Scientific Computing Center (NERSC) is the primary high-performance computing facility for scientific research sponsored by the U.S. Department of Energy's Office of Science. Located at Lawrence Berkeley National Laboratory, the NERSC Center serves more than 4,000 scientists at national laboratories and universities researching a wide range of problems in combustion, climate modeling, fusion energy, materials science, physics, chemistry, computational biology, and other disciplines. Berkeley Lab is a U.S. Department of Energy national laboratory located in Berkeley, California. It conducts unclassified scientific research and is managed by the University of California for the U.S. DOE Office of Science. For more information about computing sciences at Berkeley Lab, please visit www.lbl.gov/cs.