Electronic Resource
Springer
Space science reviews
92 (2000), S. 23-38
ISSN:
1572-9672
Keywords:
Self Gravitating Disks
;
Spiral Modes
;
Nonlinear Interactions
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract This contribution describes the formation of circumstellar disks and their earliest evolutionary phases when self-gravity in the disk plays a crucial role in eliciting the transport of mass and angular momentum. We first discuss the formation of protostellar disks within the context of analytic infall-collapse solutions. We then discuss our efforts to understand the behavior of the newly formed disks. Our specific approach consists of performing a detailed analysis of a simplified model disk which is susceptible to the growth of a spiral instability. Using a combination of numerical simulation and semi-analytic analysis, we show how the dramatic early phase of mass and angular momentum transport in the disk can be explained by a second-order nonlinear process involving self-interaction of a dominant two-armed spiral mode.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1005241115899
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