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| Paper: |
Two-Dimensional Stellar Evolution and Hydrodynamics of Rotating Stars |
| Volume: |
135, A Half Century of Stellar Pulsation Interpretations: a Tribute to Arthur N. Cox |
| Page: |
73 |
| Authors: |
Deupree, R. G. |
| Abstract: |
Using techniques and capabilities learned as Art's post-doc, I have developed a fully implicit code capable of following the evolution and hydrodynamics of two-dimensional models on any timescale. This allows the calculation of both the evolution of rotating stars and instabilities which can alter the structure, composition, and angular momentum distributions of the models. I have computed hydrodynamic models following the motion in and around the convective cores of intermediate mass stars. These show convective core overshooting and mixing to a distance about 1/3 pressure scale height beyond the formal convective core boundary and non-uniform rotation in the convective core. The convective flow patterns are appreciably altered by rotation with the result that the rotation rate is approximately constant on cylindrical surfaces and may be approximated by a power law in the distance from the rotation axis. Evolution calculations are performed through core hydrogen burning using these results. |
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