Achernar Can be a Differential Rotator

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We take advantage of interferometric measurements of Achernar to inquire on its internal rotational law. The reinterpretation of interferome-tric data and the use of fundamental parameters corrected for gravitational darkening effects and models of 2D-models of internal stellar structures, lead us to the conclusion that the star could not be a rigid, near critical, rotator but a differential rotator with the core rotating $\sim3$ times faster than the surface.
Societe Francaise d'Astronomie et d'Astrophysique, France (2005)

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Astrophysics

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http://salesiana.dossiersoluciones.com/handle/123456789/9542

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/astro-ph/0509173
 http://arxiv.org/abs/astro-ph/0509173

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arXiv