Astrophysics and Space Science

, Volume 96, Issue 2, pp 417–430 | Cite as

Static structure of general-relativistic degenerate configurations: Effects of a core

  • J. L. Zhang
  • W. Y. Chau
  • Kayll Lake
  • J. Stone


Models of spherically-symmetric static systems made up of self-gravitating, completely degenerate neutral fermions containing a core are constructed within the framework of general relativity and the effects of different core masses and compactness on the properties of the system are examined. For the specific case where the fermions are massive neutrinos (∼10 eV) we find, for example, that it is possible to have a neutrino halo with a normal Galaxy, or a cluster of galaxies, as the core, with the right values of mass and radius required of the ‘invisible halo’ in the missing mass problem. The suggestive nature of these results calls for further studies using a more realistic equation of state.


General Relativity Static System Static Structure Massive Neutrino Core Masse 
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Copyright information

© D. Reidel Publishing Company 1983

Authors and Affiliations

  • J. L. Zhang
    • 1
  • W. Y. Chau
    • 2
  • Kayll Lake
    • 2
  • J. Stone
    • 2
  1. 1.Astrophysics Research DivisionChina University of Science and TechnologyHefei, AnhweiPeople's Republic of China
  2. 2.Astronomy Group, Department of PhysicsQueen's UniversityKingstonCanada

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