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Record Details

Record 77 of 1713
Modeling the effects of latitudinal gradients in stellar winds, with application to the solar wind
External Online Source: doi:10.1086/163443
Author and Affiliation:
Nerney, S.(U.S. Naval Postgraduate School, Monterey, CA, United States)
Suess, S. T.(NASA Marshall Space Flight Center, Huntsville, AL, United States)
Abstract: A steady, axisymmetric, quasi-radial, global model previously developed for stellar winds with embedded magnetic fields has been extended to include latitudinal gradient effects on the azimuthal velocity and magnetic field. The linear results at large radii are presented for large-amplitude latitudinal variations in the radial magnetic field, mass loss rate, and radial velocity of the wind. The magnetohydrodynamic (MHD) equations predict meridional flows that develop naturally from internal magnetic stresses. The flows open flux tubes in the star's equatorial plane, redistributing mass and magnetic flux as a function of stellar latitude. The plasma spins up to conserve angular momentum in fields and plasma. The results are generally applicable to stellar winds (including radiatively driven winds), provided that the internal structure is not dominated by rotation. The asymptotic solutions do not explicitly depend on the form of the energy equation, although the assumed O(1) state which drives these solutions depends on the deposition of energy and momentum throughout the wind.
Publication Date: Sep 01, 1985
Document ID:
19850064729
(Acquired Nov 28, 1995)
Accession Number: 85A46880
Subject Category: ASTROPHYSICS
Document Type: Journal Article
Publication Information: Astrophysical Journal, Part 1 (ISSN 0004-637X); 296; 259-267
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: Naval Postgraduate School; Monterey, CA, United States
NASA Marshall Space Flight Center; Huntsville, AL, United States
Description: 9p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: AXISYMMETRIC FLOW; AZIMUTH; MAGNETOHYDRODYNAMICS; SOLAR WIND; STELLAR MAGNETIC FIELDS; STELLAR WINDS; ASYMPTOTIC METHODS; ITERATIVE SOLUTION; LATITUDE; MACH NUMBER; STELLAR MODELS
Imprint And Other Notes: Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 296, Sept. 1, 1985, p. 259-267. NASA-supported research.
Miscellaneous Notes: NASA-supported research
Availability Source: Other Sources
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