THE STRUCTURE OF MAGNETOCENTRIFUGAL WINDS. I. STEADY MASS LOADING

@article{Anderson2005THESO,
  title={THE STRUCTURE OF MAGNETOCENTRIFUGAL WINDS. I. STEADY MASS LOADING},
  author={Jeffrey M. Anderson and Zhi-yun Li and Ruben Krasnopolsky and Roger D. Blandford},
  journal={The Astrophysical Journal},
  year={2005},
  volume={630},
  pages={945-957}
}
We present the results of a series of time-dependent numerical simulations of cold, magnetocentrifugally launched winds from accretion disks. The goal of this study is to determine how the mass loading from the disk affects the structure and dynamics of the wind for a given distribution of magnetic fields. Our simulations span 4.5 dex of mass loading; in the context of a disk with a launching region from 0.1 to 1.0 AU around a 1 M☉ star and a field strength of about 20 G at the inner disk edge… Expand
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References

SHOWING 1-10 OF 39 REFERENCES
Magnetocentrifugal Launching of Jets from Accretion Disks. I. Cold Axisymmetric Flows
We present time-dependent, numerical simulations of the magnetocentrifugal model for jet formation, in an axisymmetric geometry, using a modification of the ZEUS3D code adapted to parallel computers.Expand
Magnetocentrifugal Launching of Jets from Accretion Disks. II. Inner Disk-driven Winds
We numerically follow the time evolution of axisymmetric outflows magnetocentrifugally driven from the inner portion of accretion disks from their launching surface to large observable distances.Expand
Numerical simulations of astrophysical jets from Keplerian discs — III. The effects of mass loading
We present 2.5D time-dependent simulations of the non-linear evolution of non-relativistic outflows from the surface of Keplerian accretion discs. The gas is accelerated from the surface of the discExpand
Numerical Simulations of Astrophysical Jets from Keplerian Disks. II. Episodic Outflows
We present 2.5-dimensional time-dependent simulations of the nonlinear evolution of nonrelativistic outNows from Keplerian accretion disks orbiting low-mass protostars or black holes accreting atExpand
Numerical Simulations of Astrophysical Jets from Keplerian Disks. I. Stationary Models
We present 2.5-dimensional time-dependent simulations of the evolution of nonrelativistic outflows from Keplerian accretion disks orbiting low-mass protostars or black holes accreting atExpand
Magnetocentrifugally driven flows from young stars and disks. 3: Numerical solution of the sub-Alfvenic region
We construct steady, axisymmetric, numerical models of the sub-Alfvenic regions of cool winds driven by the X-celerator mechanism. We find that smooth acceleration to speeds of the order of theExpand
Self-similar Magnetocentrifugal Disk Winds with Cylindrical Asymptotics
We construct a two-parameter family of models for self-collimated, magnetized outflows from accretion disks. As in previous magnetocentrifugal wind solutions, a flow at zero initial poloidal speedExpand
Launching of jets and the vertical structure of accretion disks
The launching of magnetohydrodynamic outflows from accretion disks is considered. We formulate a model for the local vertical structure of a thin disk threaded by a poloidal magnetic field of dipolarExpand
Locating the Launching Region of T Tauri Winds: The Case of DG Tau
It is widely believed that T Tauri winds are driven magnetocentrifugally from accretion disks close to the central stars. The exact launching conditions are uncertain. We show that a general relationExpand
Magnetically Driven Jets from Accretion Disks. I. Steady Solutions and Application to Jets/Winds in Young Stellar Objects
We solve one-dimensional steady and axisymmetric magnetohydrodynamic (MHD) equations to study basic properties of astrophysical jets from accretion disks. Assuming the configuration of the poloidalExpand
...
1
2
3
4
...