Color superconductivity in compact stellar hybrid configurations

Autores
Ranea Sandoval, Ignacio Francisco; Orsaria, Milva Gabriela; Han, Sophia; Weber, Fridolin; Spinella, William
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The discovery of pulsars PSR J1614-2230 and PSR J0348+0432 with masses of around 2M imposes strong constraints on the equations of state of cold, ultradense matter. If a phase transition from hadronic matter to quark matter were to occur in the inner cores of such massive neutron stars, the energetically favorable state of quark matter would be a color superconductor. In this study, we analyze the stability and maximum mass of such neutron stars. The hadronic phase is described by nonlinear relativistic mean-field models, and the local Nambu-Jona Lasinio model is used to describe quark matter in the 2SC+s quark phase. The phase transition is treated as a Maxwell transition, assuming a sharp hadron-quark interface, and the "constant-sound-speed" (CSS) parametrization is employed to discuss the existence of stellar twin configurations. We find that massive neutron stars such as J1614-2230 and J0348+0432 can only exist on the connected stellar branch but not on the disconnected twin-star branch. The latter can only support stars with masses that are strictly below 2M.
Fil: Ranea Sandoval, Ignacio Francisco. 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
Fil: Orsaria, Milva Gabriela. 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. San Diego State University; Estados Unidos
Fil: Han, Sophia. University of Tennessee; Estados Unidos
Fil: Weber, Fridolin. San Diego State University; Estados Unidos. University of California at San Diego; Estados Unidos
Fil: Spinella, William. San Diego State University; Estados Unidos
Materia
Asymmetric Nuclear Matter
Equation of State
Diquarks
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/56985
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/56985
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Color superconductivity in compact stellar hybrid configurationsRanea Sandoval, Ignacio FranciscoOrsaria, Milva GabrielaHan, SophiaWeber, FridolinSpinella, WilliamAsymmetric Nuclear MatterEquation of StateDiquarkshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The discovery of pulsars PSR J1614-2230 and PSR J0348+0432 with masses of around 2M imposes strong constraints on the equations of state of cold, ultradense matter. If a phase transition from hadronic matter to quark matter were to occur in the inner cores of such massive neutron stars, the energetically favorable state of quark matter would be a color superconductor. In this study, we analyze the stability and maximum mass of such neutron stars. The hadronic phase is described by nonlinear relativistic mean-field models, and the local Nambu-Jona Lasinio model is used to describe quark matter in the 2SC+s quark phase. The phase transition is treated as a Maxwell transition, assuming a sharp hadron-quark interface, and the "constant-sound-speed" (CSS) parametrization is employed to discuss the existence of stellar twin configurations. We find that massive neutron stars such as J1614-2230 and J0348+0432 can only exist on the connected stellar branch but not on the disconnected twin-star branch. The latter can only support stars with masses that are strictly below 2M.Fil: Ranea Sandoval, Ignacio Francisco. 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; ArgentinaFil: Orsaria, Milva Gabriela. 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. San Diego State University; Estados UnidosFil: Han, Sophia. University of Tennessee; Estados UnidosFil: Weber, Fridolin. San Diego State University; Estados Unidos. University of California at San Diego; Estados UnidosFil: Spinella, William. San Diego State University; Estados UnidosAmerican Physical Society2017-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/56985Ranea Sandoval, Ignacio Francisco; Orsaria, Milva Gabriela; Han, Sophia; Weber, Fridolin; Spinella, William; Color superconductivity in compact stellar hybrid configurations; American Physical Society; Physical Review C: Nuclear Physics; 96; 6; 12-2017; 1-130556-28132469-9993CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevC.96.065807info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prc/abstract/10.1103/PhysRevC.96.065807info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:31:04Zoai:ri.conicet.gov.ar:11336/56985instacron: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:34982025-10-15 14:31:05.296CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Color superconductivity in compact stellar hybrid configurations
title Color superconductivity in compact stellar hybrid configurations
spellingShingle Color superconductivity in compact stellar hybrid configurations
Ranea Sandoval, Ignacio Francisco
Asymmetric Nuclear Matter
Equation of State
Diquarks
title_short Color superconductivity in compact stellar hybrid configurations
title_full Color superconductivity in compact stellar hybrid configurations
title_fullStr Color superconductivity in compact stellar hybrid configurations
title_full_unstemmed Color superconductivity in compact stellar hybrid configurations
title_sort Color superconductivity in compact stellar hybrid configurations
dc.creator.none.fl_str_mv Ranea Sandoval, Ignacio Francisco
Orsaria, Milva Gabriela
Han, Sophia
Weber, Fridolin
Spinella, William
author Ranea Sandoval, Ignacio Francisco
author_facet Ranea Sandoval, Ignacio Francisco
Orsaria, Milva Gabriela
Han, Sophia
Weber, Fridolin
Spinella, William
author_role author
author2 Orsaria, Milva Gabriela
Han, Sophia
Weber, Fridolin
Spinella, William
author2_role author
author
author
author
dc.subject.none.fl_str_mv Asymmetric Nuclear Matter
Equation of State
Diquarks
topic Asymmetric Nuclear Matter
Equation of State
Diquarks
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The discovery of pulsars PSR J1614-2230 and PSR J0348+0432 with masses of around 2M imposes strong constraints on the equations of state of cold, ultradense matter. If a phase transition from hadronic matter to quark matter were to occur in the inner cores of such massive neutron stars, the energetically favorable state of quark matter would be a color superconductor. In this study, we analyze the stability and maximum mass of such neutron stars. The hadronic phase is described by nonlinear relativistic mean-field models, and the local Nambu-Jona Lasinio model is used to describe quark matter in the 2SC+s quark phase. The phase transition is treated as a Maxwell transition, assuming a sharp hadron-quark interface, and the "constant-sound-speed" (CSS) parametrization is employed to discuss the existence of stellar twin configurations. We find that massive neutron stars such as J1614-2230 and J0348+0432 can only exist on the connected stellar branch but not on the disconnected twin-star branch. The latter can only support stars with masses that are strictly below 2M.
Fil: Ranea Sandoval, Ignacio Francisco. 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
Fil: Orsaria, Milva Gabriela. 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. San Diego State University; Estados Unidos
Fil: Han, Sophia. University of Tennessee; Estados Unidos
Fil: Weber, Fridolin. San Diego State University; Estados Unidos. University of California at San Diego; Estados Unidos
Fil: Spinella, William. San Diego State University; Estados Unidos
description The discovery of pulsars PSR J1614-2230 and PSR J0348+0432 with masses of around 2M imposes strong constraints on the equations of state of cold, ultradense matter. If a phase transition from hadronic matter to quark matter were to occur in the inner cores of such massive neutron stars, the energetically favorable state of quark matter would be a color superconductor. In this study, we analyze the stability and maximum mass of such neutron stars. The hadronic phase is described by nonlinear relativistic mean-field models, and the local Nambu-Jona Lasinio model is used to describe quark matter in the 2SC+s quark phase. The phase transition is treated as a Maxwell transition, assuming a sharp hadron-quark interface, and the "constant-sound-speed" (CSS) parametrization is employed to discuss the existence of stellar twin configurations. We find that massive neutron stars such as J1614-2230 and J0348+0432 can only exist on the connected stellar branch but not on the disconnected twin-star branch. The latter can only support stars with masses that are strictly below 2M.
publishDate 2017
dc.date.none.fl_str_mv 2017-12
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/11336/56985
Ranea Sandoval, Ignacio Francisco; Orsaria, Milva Gabriela; Han, Sophia; Weber, Fridolin; Spinella, William; Color superconductivity in compact stellar hybrid configurations; American Physical Society; Physical Review C: Nuclear Physics; 96; 6; 12-2017; 1-13
0556-2813
2469-9993
CONICET Digital
CONICET
url http://hdl.handle.net/11336/56985
identifier_str_mv Ranea Sandoval, Ignacio Francisco; Orsaria, Milva Gabriela; Han, Sophia; Weber, Fridolin; Spinella, William; Color superconductivity in compact stellar hybrid configurations; American Physical Society; Physical Review C: Nuclear Physics; 96; 6; 12-2017; 1-13
0556-2813
2469-9993
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevC.96.065807
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prc/abstract/10.1103/PhysRevC.96.065807
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846082791870038016
score 13.22299

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