Three Dimensional Simulations of the Core Helium Flash - with Rotation

Details Three Dimensional Simulations of the Core Helium Flash - with Rotation Three Dimensional Simulations of the Core Helium Flash - with Rotation

2006-12-06

arxiv.org/abs/astro-ph/0612147v1

PoSNIC-IX:060,2006

Astronomy and Astrophysics

Astrophysics

Accepted for publication in the (refereed) Proceedings of the Nuclei In The Cosmos IX meeting

Scientific paper

We continue our study of the core helium flash using the three dimensional hydrodynamics code Djehuty. Continuing from earlier calculations, we now take relaxed 3D configurations and add various amounts of rotation. We find that rotation periods consistent with those observed in white dwarfs produce negligible changes in the structure and evolution of the core flash, at least for the very small timescales we have yet been able to investigate. There is no sign of any extra mixing due to the rotation. There is some inconclusive evidence for a slight change in the luminosity, at the 1% level.

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