A Magnetohydrodynamic Model for the AGB Star: Preplanetary Nebula Symbiosis
| Autor: | G. Pascoli, L. Lahoche |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Physics
Nebula Astronomy Astronomy and Astrophysics Astrophysics Planetary nebula Protoplanetary nebula Space and Planetary Science Physics::Space Physics Astrophysics::Solar and Stellar Astrophysics Differential rotation Asymptotic giant branch Astrophysics::Earth and Planetary Astrophysics Magnetohydrodynamic drive Magnetohydrodynamics Astrophysics::Galaxy Astrophysics Dynamo |
| Zdroj: | Publications of the Astronomical Society of the Pacific. 122:1334-1340 |
| ISSN: | 1538-3873 0004-6280 |
| DOI: | 10.1086/657508 |
| Popis: | In this article, a magnetohydrodynamic (MHD) model is presented that is aimed at understanding the anisotropic mass loss by an AGB star and subsequent bipolar planetary nebula formation. The main challenge in developing such a model was to simultaneously treat the dynamo engine in the core region of the AGB progenitor, magnetic buoyancy, meridional circulation, and gas ejection in a self-consistent manner. A previous article did not incorporate the dynamo and the feedback of the produced magnetic field on differential rotation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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