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On the pre-RLO spin-orbit couplings in LMXBs

T. M. Tauris

astro-pharXiv:astro-ph/0012077

Abstract

We investigate the effect of orbital decay caused by nuclear expansion of a (sub)giant star in synchronous binary system. We compare this effect with the presence of a magnetic stellar wind and show that the additional transfer of orbital angular momentum into spin angular momentum is relatively important -- especially since it has been shown that the effect of magnetic braking saturates at short orbital periods.

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