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Paper   IPM / P / 6824
School of Physics
  Title:   Equation of State of Protoneutron Star Matter
  Author(s):  G.H. Bordbar
  Status:   Published
  Journal: Int. J. Theor. Phys.
  No.:  2
  Vol.:  41
  Year:  2002
  Pages:   309-319
  Supported by:  IPM
We have calculated the equation of state of protoneutron star matter by using the lowest order constrained variational method. In our calculations, the modern Argonne potential (AV18) together with its older model potential (AV14) are used. It is found that the equation of state for high lepton fraction is stiffer than for low lepton fraction. It is seen that the increasing effect of pressure due to high lepton fraction and due to entropy are comparable. It is shown that the temperature and adiabatic index depend on the values of both entropy and lepton fraction.

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