Maximum mass of neutron stars

We determine the structure of neutron stars within a Brueckner-Hartree-Fock approach based on realistic nucleon-nucleon, nucleon-hyperon, and hyperon-hyperon interactions. Our results indicate rather low maximum masses below 1.4 solar masses. This feature is insensitive to the nucleonic part of the...

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Detalhes bibliográficos
Autores: Schulze, H.-J., Polls Martí, Artur, Ramos Gómez, Àngels, Vidaña Haro, Isaac
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2006
País:España
Recursos:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/11019
Acesso em linha:https://hdl.handle.net/2445/11019
Access Level:acceso abierto
Palavra-chave:Astrofísica nuclear
Reaccions nuclears
Nuclear astrophysics
Nuclear reactions
Descrição
Resumo:We determine the structure of neutron stars within a Brueckner-Hartree-Fock approach based on realistic nucleon-nucleon, nucleon-hyperon, and hyperon-hyperon interactions. Our results indicate rather low maximum masses below 1.4 solar masses. This feature is insensitive to the nucleonic part of the EOS due to a strong compensation mechanism caused by the appearance of hyperons and represents thus strong evidence for the presence of nonbaryonic "quark" matter in the interior of heavy stars.