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Mixing by Non-linear Gravity Wave Breaking on a White Dwarf Surface

A. C. Calder·A. Alexakis·L. J. Dursi·R. Rosner·J. W. Truran·B. Fryxell P. Ricker·M. Zingale·K. Olson·F. X. Timmes·P. MacNeice
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Abstract

We present the results of a simulation of a wind-driven non-linear gravity wave breaking on the surface of a white dwarf. The ``wind'' consists of H/He from an accreted envelope, and the simulation demonstrates that this breaking wave mechanism can produce a well-mixed layer of H/He with C/O from the white dwarf above the surface. Material from this mixed layer may then be transported throughout the accreted envelope by convection, which would enrich the C/O abundance of the envelope as is expected from observations of novae.

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A. C. Calder, A. Alexakis, L. J. Dursi, R. Rosner, J. W. Truran, B. Fryxell P. Ricker, M. Zingale, K. Olson, F. X. Timmes, P. MacNeice. 2002-07-11. Mixing by Non-linear Gravity Wave Breaking on a White Dwarf Surface. https://doi.org/10.1063/1.1518190

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