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Astrophysics and Space Science

, Volume 190, Issue 1, pp 131–138 | Cite as

Obliquity and magnetic dipole radiation from collapsing, rotating, magnetized stars

  • W. Y. Chau
  • J. L. Zhang
Article
  • 40 Downloads

Abstract

We consider in this paper the evolution of a collapsing (or exploding), uniformly rotating, uniformly magnetized spheroidal star with non-aligned rotational and magnetic axes. Analytical expressions were obtained for the change in angle (obliquity) between the two axes (based on the frozen field condition), and the energy loss via magnetic, dipole radiation. Numerical estimates with typical data show that the obliquity increases (asymptotically to π/2) with the collapse from white dwarf to neutron star, and the energy loss could be as much as 4×1039 ergs, about twice the amount emitted when the two axes are aligned.

Keywords

Radiation Energy Loss Field Condition Neutron Star Typical Data 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Beltrami, H. and Chau, W. Y.: 1986,Astrophys. Space Sci. 119, 353.Google Scholar
  2. Chan, K. L., Chau, W. Y., and Henriksen, R. N.: 1978,Astrophys. J. 225, 625.Google Scholar
  3. Chan, K. L., Chau, W. Y., and Henriksen, R. N.: 1980,Astrophys. J. 236, 889.Google Scholar
  4. Chandrasekhar, S.: 1969,Ellipsoidal Figures of Equilibrium Yale University Press, New Haven.Google Scholar
  5. Chia, T. T., Chau, W. Y., and Henriksen, R. N.: 1977,Astrophys. J. 214, 576.Google Scholar
  6. Henriksen, R. N., Chau, W. Y., and Chan, K. L.: 1979,Astrophys. J. 227, 1013.Google Scholar
  7. Landau, L. D., and Lifshitz, E. M.: 1959,Electrodynamics of Continuous Media Pergamon Press, New York.Google Scholar

Copyright information

© Kluwer Academic Publishers 1992

Authors and Affiliations

  • W. Y. Chau
    • 1
  • J. L. Zhang
    • 1
  1. 1.Physics DepartmentUniversity of Hong KongHong Kong

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