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Theory of superdense matter and degenerate stellar configurations

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Abstract

During the last two decades the theory of degenerate stellar configurations has been developed in works by Ambartsumian and Sahakian, as well as in some other papers. This article is further progress in this direction.

Systematic investigations of thermodynamic properties of the ground and metastable states of degenerate plasma have been carried out over the total range of pressures. It was found that in the range of densities 3×1010≲ϱ≲3×1014 g cm−3 there exists a pionization effect which plays an important role in the thermodynamics of degenerate plasma. The pion condensate present in nuclear matter promotes the existence of metastable nuclear clusters with the nuclear numberA≫106. The equation of state of degenerate stellar matter has been notably revised and, accordingly, the neutron star parameters have been calculated anew. The role of the pion condensate in generating strong magnetic fields observed in the pulsars is discussed.

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Authors and Affiliations

  1. Department of Applied Problems of Physics, Academy of Sciences of the Armenian S.S.R., Armenia, USSR

    L. Sh. Grigorian & G. S. Sahakian

  2. Department of Physics, Yerevan State University, Armenia, USSR

    L. Sh. Grigorian & G. S. Sahakian

Authors
  1. L. Sh. Grigorian
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  2. G. S. Sahakian
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Grigorian, L.S., Sahakian, G.S. Theory of superdense matter and degenerate stellar configurations. Astrophys Space Sci 95, 305–356 (1983). https://doi.org/10.1007/BF00653637

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