Physical Processes Leading to Surface Inhomogeneities: The Case of Rotation

  • Michel RieutordEmail author
Part of the Lecture Notes in Physics book series (LNP, volume 914)


In this lecture I discuss the bulk surface heterogeneity of rotating stars, namely gravity darkening. I especially detail the derivation of the ω-model of Espinosa Lara and Rieutord (Astron Astrophys 533:A43, 2011), which gives the gravity darkening in early-type stars. I also discuss the problem of deriving gravity darkening in stars owning a convective envelope and in those that are members of a binary system.


Effective Temperature Differential Rotation Stellar Surface Roche Lobe Turbulent Convection 
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I am grateful to the organizers of the Besançon school for their invitation, and the opportunity to present in more details the recent work I did with Francisco Espinosa Lara on gravity darkening. This school triggered many stimulating discussions that helped me deepen this subject. Finally, I would like to stress that this work owes much to Francisco who had the original idea of the ω-model.


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© Springer International Publishing Switzerland 2016

Authors and Affiliations

  1. 1.Université de Toulouse, UPS-OMP, IRAPToulouseFrance
  2. 2.CNRS, IRAPToulouseFrance

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