Differential rotation in rapidly rotating early-type stars. I. Motivations for combined spectroscopic and interferometric studies

  title={Differential rotation in rapidly rotating early-type stars. I. Motivations for combined spectroscopic and interferometric studies},
  author={Juan Zorec and Yves Fr{\'e}mat and A. Domiciano de Souza and Omar Delaa and P. Stee and Denis Mourard and L. S. Cidale and Christophe Martayan and Cyril Georgy and Sylvia Ekstrom},
  journal={Astronomy and Astrophysics},
Context. Since the external regions of the envelopes of rapidly rotating early-type stars are unstable to convection, a coupling may exist between the convection and the internal rotation. Aims. We explore what can be learned from spectroscopic and interferometric observations about the properties of the rotation law in the external layers of these objects. Methods. Using simple relations between the entropy and specific rotational quantities, some of which are found to be efficient at… Expand
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