Gaseous flows in the inner part of the circumbinary disk of the T Tauri star

Details Gaseous flows in the inner part of the circumbinary disk of the T Tauri star Gaseous flows in the inner part of the circumbinary disk of the T Tauri star

Sep 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ap%26ss.335..125f&link_type=abstract

Astrophysics and Space Science, Vol. 335, No. 1, p. 125-129

Astronomy and Astrophysics

Astrophysics

1

Binary Stars, T Tauri, Accretion Disks, Gap Formation, Gas Dynamic Simulations

Scientific paper

We present results of 3D numerical simulations of the matter flow in the disk of a binary T Tauri star. It is shown that two bow-shocks caused by the supersonic motion of the binary components in the gas of the disk are formed in the system having parameters typical for T Tauri stars. These bow-shocks significantly change the flow pattern. In particular, for systems with circular orbits they determine the size and shape of the inner gap. We also show that the redistribution of the angular momentum due to the bow-shocks leads to occurrence of two matter flows propagating from the inner edge of the circumbinary disk to the components. Further redistribution of this matter between the components is considered.

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