6533b7d6fe1ef96bd1266519

RESEARCH PRODUCT

Inner Edge Drag by an Asynchronous Primary and Accretion Disc Structure In Close Binaries

G. LanzafameDiego MolteniGaetano Belvedere

subject

Smoothed-particle hydrodynamicsPhysicsPrimary (astronomy)DragAstrophysics::Solar and Stellar AstrophysicsAngular velocityAstrophysics::Earth and Planetary AstrophysicsAstrophysicsEdge (geometry)Compact starStar (graph theory)Inductive couplingAstrophysics::Galaxy Astrophysics

description

In this work a 3-D ‘Smoothed Particle Hydrodynamics’ ([1]; [4]; [5]) accretion disc is simulated where particles at its inner edge are dragged by a fast spinning compact central star, as in the case of the intermediate polars. The angular velocity of the central star is twice the orbital angular velocity w 0. This drag can be attributed mainly to viscous interaction in the dense compact star atmosphere, although magnetic coupling may also play a role.

https://doi.org/10.1007/978-94-009-0325-8_35