The angular momentum of isolated white dwarfs
1 Département de Physique, Université de Montréal
2 CNRS, Université de Toulouse, UPS-OMP, IRAP
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This is a very brief report on an ongoing program aimed at mapping the internal rotation profiles of stars through asteroseismology. Three years ago, we developed and applied successfully a new technique to the pulsating GW Vir white dwarf PG 1159−035, and were able to infer that it rotates very slowly and rigidly over some 99% of its mass. We applied the same approach to the three other GW Vir pulsators with available rotational splitting data, and found similar results. We discuss the implications of these findings on the question of the angular momentum of white dwarfs resulting from single star evolution.
© Owned by the authors, published by EDP Sciences, 2013
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