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Structure of Magnetocentrifugal Disk-Winds: From the Launching Surface to Large Distances

Krasnopolsky, Ruben and Li, Zhi-Yun and Blandford, Roger D. (2003) Structure of Magnetocentrifugal Disk-Winds: From the Launching Surface to Large Distances. In: The Origins of Stars and Planets: The VLT View. ESO Astrophysics Symposia. Springer , Berlin, pp. 259-266. ISBN 9783540435419.

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Protostellar jets and winds are probably driven magnetocentrifugally from the surface of accretion disks close to the central stellar objects. The exact launching conditions on the disk, such as the distributions of magnetic flux and mass ejection rate, are poorly unknown. They could be constrained from observations at large distances, provided that a robust model is available to link the observable properties of the jets and winds at the large distances to the conditions at the base of the flow. We discuss the difficulties in constructing such large-scale wind models, and describe a novel technique which enables us to numerically follow the acceleration and propagation of the wind from the disk surface to arbitrarily large distances and the collimation of part of the wind into a dense, narrow “jet” around the rotation axis. Special attention is paid to the shape of the jet and its mass flux relative to that of the whole wind. The mass flux ratio is a measure of the jet formation efficiency.

Item Type:Book Section
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URLURL TypeDescription Paper ReadCube access
Blandford, Roger D.0000-0002-1854-5506
Additional Information:© 2002 Springer-Verlag Berlin Heidelberg. First Online: 15 October 2003.
Subject Keywords:Field Line; Mass Flux; Accretion Disk; Density Contour; Fast Surface
Series Name:ESO Astrophysics Symposia
Record Number:CaltechAUTHORS:20190605-083753380
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:96131
Deposited By: Tony Diaz
Deposited On:06 Jun 2019 05:01
Last Modified:06 May 2020 22:00

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