Virial theorem analysis of the structure and stability of magnetized clouds
- Zweibel, Ellen G.
- Jul 1, 1990.
- Physical Description:
- 1 electronic document
- Restrictions on Access:
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- The tensor virial theorem is used to analyze the structure and stability of self-gravitating, magnetized spheroids surrounded by a low-density medium with pressure and magnetic field. Analytical expressions are developed for the effect of a weak field and calculate critical states when the effect of the field is arbitrarily strong, comparing the results with full magnetohydrostatic calculations. This analysis suggests that a magnetic field may prevent gravitational collapse but may also be destabilizing, depending on its degree of concentration within the cloud.
- Other Subject(s):
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 19910004877.
Accession ID: 91N14190.
NASA, Ames Research Center, The Interstellar Medium in External Galaxies: Summaries of Contributed Papers; p 252-254.
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