Quark-hybrid matter in the cores of massive neutron stars
- Autores
- Orsaria, Milva Gabriela; Rodrigues, H.; Fridolin, Weber; Contrera, Gustavo Aníbal Gabriel
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- 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.
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
Fil: Rodrigues, H.. Centro Federal de Educação Tecnológica; Brasil. San Diego State University; Estados Unidos
Fil: Fridolin, Weber. San Diego State University; Estados Unidos
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 - Materia
-
HYBRID STARS
NON LOCAL PNJL MODEL
QCD PHASE TRANSITIONS - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/77263
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Quark-hybrid matter in the cores of massive neutron starsOrsaria, Milva GabrielaRodrigues, H.Fridolin, WeberContrera, Gustavo Aníbal GabrielHYBRID STARSNON LOCAL PNJL MODELQCD PHASE TRANSITIONShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Using 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.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; ArgentinaFil: Rodrigues, H.. Centro Federal de Educação Tecnológica; Brasil. San Diego State University; Estados UnidosFil: Fridolin, Weber. San Diego State University; Estados UnidosFil: 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; ArgentinaAmerican Physical Society2013-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/77263Orsaria, 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; 230011-2300161550-7998CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://link.aps.org/doi/10.1103/PhysRevD.87.023001info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.87.023001info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:41:59Zoai:ri.conicet.gov.ar:11336/77263instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:42:00.075CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Quark-hybrid matter in the cores of massive neutron stars |
title |
Quark-hybrid matter in the cores of massive neutron stars |
spellingShingle |
Quark-hybrid matter in the cores of massive neutron stars Orsaria, Milva Gabriela HYBRID STARS NON LOCAL PNJL MODEL QCD PHASE TRANSITIONS |
title_short |
Quark-hybrid matter in the cores of massive neutron stars |
title_full |
Quark-hybrid matter in the cores of massive neutron stars |
title_fullStr |
Quark-hybrid matter in the cores of massive neutron stars |
title_full_unstemmed |
Quark-hybrid matter in the cores of massive neutron stars |
title_sort |
Quark-hybrid matter in the cores of massive neutron stars |
dc.creator.none.fl_str_mv |
Orsaria, Milva Gabriela Rodrigues, H. Fridolin, Weber Contrera, Gustavo Aníbal Gabriel |
author |
Orsaria, Milva Gabriela |
author_facet |
Orsaria, Milva Gabriela Rodrigues, H. Fridolin, Weber Contrera, Gustavo Aníbal Gabriel |
author_role |
author |
author2 |
Rodrigues, H. Fridolin, Weber Contrera, Gustavo Aníbal Gabriel |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
HYBRID STARS NON LOCAL PNJL MODEL QCD PHASE TRANSITIONS |
topic |
HYBRID STARS NON LOCAL PNJL MODEL QCD PHASE TRANSITIONS |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
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. 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 Fil: Rodrigues, H.. Centro Federal de Educação Tecnológica; Brasil. San Diego State University; Estados Unidos Fil: Fridolin, Weber. San Diego State University; Estados Unidos 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 |
description |
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. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-01 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/77263 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 1550-7998 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/77263 |
identifier_str_mv |
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 1550-7998 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://link.aps.org/doi/10.1103/PhysRevD.87.023001 info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.87.023001 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
American Physical Society |
publisher.none.fl_str_mv |
American Physical Society |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.070432 |