AAS 207th Meeting, 8-12 January 2006
Session 69 Stellar Evolution
Poster, Tuesday, 9:20am-6:30pm, January 10, 2006, Exhibit Hall

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[69.13] Turbulence in \eta Bootis outer layers as derived from 3D convection simulations to explain its observed p-mode spectrum

C. W. Straka, P. Demarque, F. J. Robinson (Yale University), D.B. Guenther (Saint Mary's University, Halifax), L. Li (Yale University)

Standard stellar models for \eta Boo fail to reproduce the observed low frequency p-modes from space and the high frequency p-modes observed from ground, simultaneously. This discrepancy can be mitigated by including turbulence in the modeling of the outer layers of \eta Boo. We present new results of our full 3D turbulent convection simulation of \eta Boo's outer layers. With these simulations we are able to answer the question whether the discrepancy between models and observations can be fully attributed to the effects of turbulence.

This research was supported by NASA grant NAG5-13299, and in part by the NASA EOS/IDS program.

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The author(s) of this abstract have provided an email address for comments about the abstract: straka@astro.yale.edu

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