Angular Momentum Transport between a T Tauri Star and an Accretion Disk

Details Angular Momentum Transport between a T Tauri Star and an Accretion Disk Angular Momentum Transport between a T Tauri Star and an Accretion Disk

Oct 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003csss...12..747b&link_type=abstract

The Future of Cool-Star Astrophysics: 12th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (2001 July 30 - August

Astronomy and Astrophysics

Astrophysics

Scientific paper

We present results from time dependent numerical simulations of the hydromagnetic interaction between a rotating T Tauri star and a magnetically coupled Keplerian accretion disk. For a diffusive disk, we find that most of the toroidal component of the magnetic field is generated within a thin, shearing boundary layer that forms along the interface between the disk and the magnetosphere. We describe the properties of the system when it has attained a rotational equilibrium state in which the stellar spin-up produced by accretion and structural changes is compensated for by the spin-down torque arising from the magnetic connection between the star and the disk.

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