Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..797..603p&link_type=abstract
INTERACTING BINARIES: Accretion, Evolution, and Outcomes. AIP Conference Proceedings, Volume 797, pp. 603-606 (2005).
Astronomy and Astrophysics
Astronomy
Binary Stars, Gamma-Ray Sources (Astronomical), Stellar Rotation, Magnetic Fields, Binary And Multiple Stars, Gamma-Ray Sources, Gamma-Ray Bursts, Stellar Rotation
Scientific paper
We follow the evolution of binary systems that include rotational processes for both stars. Neglecting magnetic fields, we show that the cores of massive stars can maintain a high specific angular momentum (j~1017 cm2 s-1) when evolved with the assumption that mean molecular weight gradient suppress rotational mixing processes. We also present models that include magnetic fields generated by differential rotation (Spruit 2002) and we consider the internal angular momentum transport by magnetic torques. We show that the magnetic coupling of core and envelope after the accreting star ends core hydrogen burning leads to slower rotation (j~1015-16 cm2 s-1) than in the non-magnetic case.
Langer Norbert
Petrovic Jelena
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