The Challenge of Sub-Keplerian Rotation for Disk Winds

Abstract

Strong magnetization makes the disks surrounding young stellar objects rotate at rates that are too sub-Keplerian to enable the thermal launching of disk winds from their surfaces unless the rate of gas diffusion across field lines is dynamically fast. This under-appreciated implication of disk magnetization poses a considerable challenge for disk-wind theory.

4 pages, accepted by ApJL

References in corpus (3)

• Mean-Field Magnetohydrodynamics of Accretion Disks
• Angular momentum transport in protostellar discs
• X-winds in Action

Cited by in corpus (17)

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• Evolution of Spin Direction of Accreting Magnetic Protostars and Spin-Orbit Misalignment in Exoplanetary Systems
• Magneto-thermal Disk Wind from Protoplanetary Disks
• Wind-driven Accretion in Protoplanetary Disks --- II: Radial Dependence and Global Picture
• Molecule survival in magnetized protostellar disk winds. I. Chemical model and first results
• Explosive Outflows Powered by the Decay of Non-Hierarchical Multiple Systems of Massive Stars: Orion BN/KL
• The ALMA View of the OMC1 Explosion in Orion
• Kinematics of the CO Gas in the Inner Regions of the TW Hya Disk
• Wind-driving protostellar accretion discs. I. Formulation and parameter constraints
• Theory of Disk Accretion onto Magnetic Stars
• Dust Transport and Processing in Centrifugally Driven Protoplanetary Disk Winds
• Migration of Extrasolar Planets: Effects from X-Wind Accretion Disks
• Stability of Magnetized Disks and Implications for Planet Formation
• On fan-shaped cold MHD winds from Keplerian accretion discs
• Vertical Structure of Magnetized Accretion Disks around Young Stars
• Shear-driven instabilities in Hall-MHD plasmas
• Gravitational Collapse and Disk Formation in Magnetized Cores