Propeller-driven Outflows and Disk Oscillations

Abstract

We report the discovery of propeller-driven outflows in axisymmetric magnetohydrodynamic simulations of disk accretion to rapidly rotating magnetized stars. Matter outflows in a wide cone and is centrifugally ejected from the inner regions of the disk. Closer to the axis there is a strong, collimated, magnetically dominated outflow of energy and angular momentum carried by the open magnetic field lines from the star. The ``efficiency'' of the propeller may be very high in the respect that most of the incoming disk matter is expelled from the system in winds. The star spins-down rapidly due to the magnetic interaction with the disk through closed field lines and with corona through open field lines. Diffusive and viscous interaction between magnetosphere and the disk are important: no outflows were observed for very small values of the diffusivity and viscosity. These simulation results are applicable to the early stages of evolution of classical T Tauri stars and to different stages of evolution of cataclysmic variables and neutron stars in binary systems. As an example, we have shown that young rapidly rotating magnetized CTTSs spin-down to their present slow rotation in less than 10^6 years.

5 pages, 4 figures, see animation in http://www.astro.cornell.edu/us-rus/animation/a_strong.htm

References in corpus (16)

• Spin-Up/Spin-Down of Magnetized Stars with Accretion Disks and Outflows
• On Young Neutron Stars as Propellers and Accretors with Conventional Magnetic Fields
• MHD Simulations of Disk-Magnetized Star Interactions in Quiescent Regime: Funnel Flows and Angular Momentum Transport
• The Propeller Regime of Disk Accretion to a Rapidly Rotating Magnetized Star
• Evidence for "Propeller" Effects In X-ray Pulsars GX 1+4 And GROJ1744-28
• Accretion Onto Fast X-Ray Pulsars
• Magnetic propeller outflows
• Poynting Jets from Accretion Disks
• Simulation-Based Investigation of a Model for the Interaction Between Stellar Magnetospheres and Circumstellar Accretion Disks
• Formation of Semi-relativisitc Jets from Magnetospheres of Accreting Neutron Stars: Injection of Hot Bubbles into a Magnetic Tower
• MHD Simulations of Bondi Accretion to a Star in the "Propeller" Regime
• Where Are All The Fallback Disks? Constraints on Propeller Systems
• Outflows and accretion in a star--disc system with stellar magnetosphere and disc dynamo
• Does Disk Locking Solve the Stellar Angular Momentum Problem?
• Isolated magnetar spin-down, soft X-ray emission and RXJ1856.5-3754
• Supersonic propeller spindown of neutron stars in wind-fed mass-exchange close binaries

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