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Record 26 of 34
Generation of dynamo magnetic fields in protoplanetary and other astrophysical accretion disks
External Online Source: doi:10.1086/166569
Author and Affiliation:
Stepinski, T. F.(Arizona Univ., Tucson, AZ, United States)
Levy, E. H.(Arizona, University, Tucson, United States)
Abstract: A computational method for treating the generation of dynamo magnetic fields in astrophysical disks is presented. The numerical difficulty of handling the boundary condition at infinity in the cylindrical disk geometry is overcome by embedding the disk in a spherical computational space and matching the solutions to analytically tractable spherical functions in the surrounding space. The lowest lying dynamo normal modes for a 'thick' astrophysical disk are calculated. The generated modes found are all oscillatory and spatially localized. Tha potential implications of the results for the properties of dynamo magnetic fields in real astrophysical disks are discussed.
Publication Date: Aug 01, 1988
Document ID:
19880060284
(Acquired Nov 28, 1995)
Accession Number: 88A47511
Subject Category: ASTROPHYSICS
Document Type: Journal Article
Publication Information: Astrophysical Journal, Part 1; p. 416-434; (ISSN 0004-637X); 331
Publisher Information: United States
Contract/Grant/Task Num: NSG-7419
Financial Sponsor: NASA; United States
Organization Source: Arizona Univ.; Tucson, AZ, United States
Description: 19p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ACCRETION DISKS; COMPUTATIONAL ASTROPHYSICS; DYNAMO THEORY; PROTOSTARS; STELLAR MAGNETIC FIELDS; STELLAR MASS ACCRETION; ASTRONOMICAL MODELS; COMPUTATIONAL GRIDS; PLANETARY NEBULAE; PRE-MAIN SEQUENCE STARS
Imprint And Other Notes: Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 331, Aug. 1, 1988, p. 416-434.
Availability Source: Other Sources
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