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dc.contributor.author
Orsaria, Milva Gabriela
dc.contributor.author
Rodrigues, H.
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Fridolin, Weber
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Contrera, Gustavo Aníbal Gabriel
dc.date.available
2019-05-27T19:51:40Z
dc.date.issued
2013-01
dc.identifier.citation
Orsaria, Milva Gabriela; Rodrigues, H.; Fridolin, Weber; Contrera, Gustavo Aníbal Gabriel; Quark-hybrid matter in the cores of massive neutron stars; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 87; 2; 1-2013; 230011-230016
dc.identifier.issn
1550-7998
dc.identifier.uri
http://hdl.handle.net/11336/77263
dc.description.abstract
Using a nonlocal extension of the SU(3) Nambu-Jona-Lasinio model, which reproduces several of the key features of quantum chromodynamics, we show that mixed phases of deconfined quarks and confined hadrons (quark-hybrid matter) may exist in the cores of neutron stars as massive as around 2.1M ⊙. The radii of these objects are found to be in the canonical range of ∼12-13 km. According to our study, the transition to pure quark matter does not occur in stable neutron stars, but is shifted to neutron stars which are unstable against radial oscillations. The implications of our study for the recently discovered, massive neutron star PSR J1614-2230, whose gravitational mass is 1.97±0.04M⊙, are that this neutron star may contain an extended region of quark-hybrid matter at it center, but no pure quark matter.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Physical Society
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
Hybrid Stars
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Non Local Pnjl Model
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Qcd Phase Transitions
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Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
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Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Quark-hybrid matter in the cores of massive neutron stars
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-05-14T21:09:45Z
dc.journal.volume
87
dc.journal.number
2
dc.journal.pagination
230011-230016
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Nueva York
dc.description.fil
Fil: Orsaria, Milva Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. San Diego State University; Estados Unidos. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
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Fil: Rodrigues, H.. Centro Federal de Educação Tecnológica; Brasil. San Diego State University; Estados Unidos
dc.description.fil
Fil: Fridolin, Weber. San Diego State University; Estados Unidos
dc.description.fil
Fil: Contrera, Gustavo Aníbal Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
dc.journal.title
Physical Review D: Particles, Fields, Gravitation and Cosmology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://link.aps.org/doi/10.1103/PhysRevD.87.023001
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevD.87.023001
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