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Supernova Explosions, Black Holes and Nucleon Stars
Author(s) -
Brown G. E.
Publication year - 1997
Publication title -
physikalische blätter
Language(s) - English
Resource type - Journals
eISSN - 1521-3722
pISSN - 0031-9279
DOI - 10.1002/phbl.19970530711
Subject(s) - neutron star , physics , supernova , astrophysics , stellar black hole , equation of state , nuclear matter , stars , nuclear physics , black hole (networking) , star (game theory) , x ray binary , nucleon , galaxy , quantum mechanics , computer network , routing protocol , routing (electronic design automation) , computer science , link state routing protocol
In the collapse of large stars matter is formed at supranuclear densities. At a density ρ ∼ 3ρ 0 , where ρ 0 is the nuclear matter density, K − ‐mesons replace electrons, and go into a Bose condensate. This soft equation of state gives a maximum mass for neutron stars of ∼1.5 M ⊙ . It is argued that the last nearby supernova, SN 1987A, went into a black hole. A new scenario of binary neutron star evolution is developed which results in the two masses in a given binary being nearly equal and all neutron star masses lying in a narrow band 1.3 M ⊙ < M NS < 1.5 M ⊙ .