The internal rotation of the GW Vir star PG 0112+200 through the eyes of asteroseismology

Details The internal rotation of the GW Vir star PG 0112+200 through the eyes of asteroseismology The internal rotation of the GW Vir star PG 0112+200 through the eyes of asteroseismology

2011-08-16

arxiv.org/abs/1108.3361v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

4 pages, 2 figures, To appear in the ASP proceedings of "The 61st Fujihara seminar: Progress in solar/stellar physics with hel

Scientific paper

We investigate the internal rotation profile of the GW Vir (PG1159-type) star PG 0122+200 by employing an asteroseismological model that closely reproduces the observed periods of this star. We adopt a forward approach and two inversion methods based on the rotational splitting of the pulsation frequencies to explore the properties of the rotation of PG 0122+200. We found evidence for differential rotation in this star.

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