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Equation of state at ultrahigh densities. IITheoretical research into the behavior of matter in the high-density region (at least 2 by 10 to the 14th power g/cu cm) is reviewed. Results of work concerning the appearance of hyperons in the neutron fluid at densities higher than nuclear density are summarized, and it is shown that the presence of hyperons does not severely alter the equation of state from that for a pure neutron gas provided that hyperonic potentials are almost identical to the nucleon-nucleon case. Computations to determine whether neutrons can solidify at a high enough density are described. It is shown that the solidification density is well within the range of values expected in the interior of neutron stars. Several unrelated attempts to analyze the behavior of matter in the relativistic or superhigh-density region (in excess of 10 to the 16th power gm/cu cm) are summarized. It is noted that available data on neutron stars are insufficient to determine a specific value for the speed of sound at superhigh densities.
Document ID
19760027121
Acquisition Source
Legacy CDMS
Document Type
Other - Collected Works
Authors
Camuto, V.
(NASA Goddard Institute for Space Studies New York, N.Y., United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1975
Subject Category
Astrophysics
Accession Number
76A10087
Distribution Limits
Public
Copyright
Other

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