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HYDROMAGNETIC OSCILLATIONS OF A SELF-GRAVITATING FLUID

Journal Article · · Astrophysical Journal (U.S.)
DOI:https://doi.org/10.1086/147292· OSTI ID:4781515
Hydromagnetic modes of oscillation of a self-gravitating fluid are investigated using the tensor virial theorem. For a spherically symmetric density distribution and an axisymmetric magnetic field, the equations yield the radial homologous pulsation and the Kelvin oscillation, with the periods modified by the magnetic field. The effect on these oscillations of an axisymmetric distortion of the configuration of equilibrium is evaluated. In the case of resonance between the two modes, the poles and the equator oscillate independently of each other and with slightly different periods, There are also four modes of oscillation which do not preserve axisymmetry. (auth)
Research Organization:
Univ. of Michigan, Ann Arbor
NSA Number:
NSA-16-016900
OSTI ID:
4781515
Journal Information:
Astrophysical Journal (U.S.), Journal Name: Astrophysical Journal (U.S.) Vol. Vol: 135; ISSN ASJOA
Country of Publication:
Country unknown/Code not available
Language:
English

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