Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...200.9301k&link_type=abstract
American Astronomical Society, 200th AAS Meeting, #93.01; Bulletin of the American Astronomical Society, Vol. 34, p.954
Astronomy and Astrophysics
Astronomy
Scientific paper
We present results from our recent efforts to model convection in the cores of massive stars during hydrogen burning, using a three-dimensional anelastic hydrodynamics code developed by Glatzmaier to study terrestrial and solar convection. The simulations were run on 48 processors of Seaborg, NERSC's IBM SP RS/6000. Our studies include the effects of energy generation and rotation on the convective structure of more than 85% of the total convective volume. The convection was followed for hundreds of convective turnover times to allow the star to come into a time-averaged equilibrium. In addition to describing the density contrasts and convective velocities, we offer a comparison of our results to conventional mixing length theory. This study is the first step towards establishing a framework within which to study convective oxygen shell burning during the late stages of evolution of these same stars. This work was supported by the Scientific Discovery though Advanced Computing (SciDAC) Program of the DOE (DE-FC02-01ER41176).
Glatzmaier Gary A.
Kuhlen Michael
Woosley Stan E.
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