Modification of AGB wind in a binary system

Adam Frankowski; Romuald Tylenda

Modification of AGB wind in a binary system

Astrophysics 2007-05-23 v1

Authors: Adam Frankowski , Romuald Tylenda

Abstract

We explore one of plausible causes of asymmetry in the wind of an AGB star - the presence of a binary companion. We have developed a simple method for estimating the intrinsic non-sphericity of the outflow in that case. Assuming the Roche model, local stellar parameters (T_eff, g) are calculated, and then a formula for the local mass loss rate is applied. As a by-product a relation between the ratio of stellar radius to the Roche lobe radius and the overall wind enhancement is obtained.

Keywords

stellar winds asymptotic giant branch stars binary stars and stellar evolution

Cite

@article{arxiv.astro-ph/0002486,
  title  = {Modification of AGB wind in a binary system},
  author = {Adam Frankowski and Romuald Tylenda},
  journal= {arXiv preprint arXiv:astro-ph/0002486},
  year   = {2007}
}

Comments

4 pages, 5 figures. To appear in ``Asymmetrical Planetary Nebulae II: from Origins to Microstructures,'' ASP Conference Series, J.H. Kastner, N. Soker, & S.A. Rappaport, eds

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