On the use of rotational splitting asymmetries to probe the internal rotation profile of stars. Application to $β$ Cephei stars

Details On the use of rotational splitting asymmetries to probe the internal rotation profile of stars. Application to $β$ Cephei stars On the use of rotational splitting asymmetries to probe the internal rotation profile of stars. Application to $β$ Cephei stars

2010-04-05

arxiv.org/abs/1004.0609v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

4 pages, 2 figures; IV International Helas conference proceedings (refereed). To be published in Astronomical Notes

Scientific paper

Rotationally-split modes can provide valuable information about the internal rotation profile of stars. This has been used for years to infer the internal rotation behavior of the Sun. The present work discusses the potential additional information that rotationally splitting asymmetries may provide when studying the internal rotation profile of stars. We present here some preliminary results of a method, currently under development, which intends: 1) to understand the variation of the rotational splitting asymmetries in terms of physical processes acting on the angular momentum distribution in the stellar interior, and 2) how this information can be used to better constrain the internal rotation profile of the stars. The accomplishment of these two objectives should allow us to better use asteroseismology as a test-bench of the different theories describing the angular momentum distribution and evolution in the stellar interiors.

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