Internal rotation of red giants by asteroseismology
M. P. Di Mauro, D. Cardini, R. Ventura, D. Stello, P. G. Beck, G., Davies, Y. Elsworth, R. A. Garc{\i}a, S. Hekker, B. Mosser, J., Christensen-Dalsgaard, S. Bloemen, G. Catanzaro, K. De Smedt, and A., Tkachenko
TL;DR
This paper introduces an asteroseismic method to investigate the internal rotation of red giant stars by analyzing oscillation frequency splittings, with preliminary results from Kepler observations of KIC4448777.
Contribution
It presents a new asteroseismic inversion technique to study stellar interior rotation in red giants, demonstrated on Kepler data.
Findings
Preliminary results on KIC4448777's internal rotation.
Validation of asteroseismic inversion for stellar dynamics.
Potential for detailed internal rotation profiles.
Abstract
We present an asteroseismic approach to study the dynamics of the stellar interior in red-giant stars by asteroseismic inversion of the splittings induced by the stellar rotation on the oscillation frequencies. We show preliminary results obtained for the red giant KIC4448777 observed by the space mission Kepler.
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