Quark Deconfinement in Rotating Neutron Stars

Autores
Mellinger, Richard; Weber, Fridolin; Spinella, William; Contrera, Gustavo Aníbal Gabriel; Orsaria, Milva Gabriela
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this paper, we use a three flavor non-local Nambu-Jona-Lasinio (NJL) model, an improved effective model of Quantum Chromodynamics (QCD) at low energies, to investigate the existence of deconfined quarks in the cores of neutron stars. Particular emphasis is put on the possible existence of quark matter in the cores of rotating neutron stars (pulsars). In contrast to non-rotating neutron stars, whose particle compositions do not change with time (are frozen in), the type and structure of the matter in the cores of rotating neutron stars depends on the spin frequencies of these stars, which opens up a possible new window on the nature of matter deep in the cores of neutron stars. Our study shows that, depending on mass and rotational frequency, up to around 8% of the mass of a massive neutron star may be in the mixed quark-hadron phase, if the phase transition is treated as a Gibbs transition. We also find that the gravitational mass at which quark deconfinement occurs in rotating neutron stars varies quadratically with spin frequency, which can be fitted by a simple formula.
Fil: Mellinger, Richard. San Diego State University; Estados Unidos
Fil: Weber, Fridolin. San Diego State University; Estados Unidos. University of California; Estados Unidos
Fil: Spinella, William. San Diego State University; Estados Unidos
Fil: Contrera, Gustavo Aníbal Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Orsaria, Milva Gabriela. San Diego State University; Estados Unidos. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Materia
DECONFINEMENT
NEUTRON STAR
NUCLEAR EQUATION OF STATE
PULSAR
QUARKS
ROTATION
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:11336/55236
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Quark Deconfinement in Rotating Neutron StarsMellinger, RichardWeber, FridolinSpinella, WilliamContrera, Gustavo Aníbal GabrielOrsaria, Milva GabrielaDECONFINEMENTNEUTRON STARNUCLEAR EQUATION OF STATEPULSARQUARKSROTATIONhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1In this paper, we use a three flavor non-local Nambu-Jona-Lasinio (NJL) model, an improved effective model of Quantum Chromodynamics (QCD) at low energies, to investigate the existence of deconfined quarks in the cores of neutron stars. Particular emphasis is put on the possible existence of quark matter in the cores of rotating neutron stars (pulsars). In contrast to non-rotating neutron stars, whose particle compositions do not change with time (are frozen in), the type and structure of the matter in the cores of rotating neutron stars depends on the spin frequencies of these stars, which opens up a possible new window on the nature of matter deep in the cores of neutron stars. Our study shows that, depending on mass and rotational frequency, up to around 8% of the mass of a massive neutron star may be in the mixed quark-hadron phase, if the phase transition is treated as a Gibbs transition. We also find that the gravitational mass at which quark deconfinement occurs in rotating neutron stars varies quadratically with spin frequency, which can be fitted by a simple formula.Fil: Mellinger, Richard. San Diego State University; Estados UnidosFil: Weber, Fridolin. San Diego State University; Estados Unidos. University of California; Estados UnidosFil: Spinella, William. San Diego State University; Estados UnidosFil: Contrera, Gustavo Aníbal Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Orsaria, Milva Gabriela. San Diego State University; Estados Unidos. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaMDPI Multidisciplinary Digital Publishing Institute2017-03info: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/11336/55236Mellinger, Richard; Weber, Fridolin; Spinella, William; Contrera, Gustavo Aníbal Gabriel; Orsaria, Milva Gabriela; Quark Deconfinement in Rotating Neutron Stars; MDPI Multidisciplinary Digital Publishing Institute; Universe; 3; 1; 3-2017; 1-152218-1997CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3390/universe3010005info:eu-repo/semantics/altIdentifier/url/http://www.mdpi.com/2218-1997/3/1/5info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:48:58Zoai:ri.conicet.gov.ar:11336/55236instacron: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 14:48:59.202CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Quark Deconfinement in Rotating Neutron Stars
title Quark Deconfinement in Rotating Neutron Stars
spellingShingle Quark Deconfinement in Rotating Neutron Stars
Mellinger, Richard
DECONFINEMENT
NEUTRON STAR
NUCLEAR EQUATION OF STATE
PULSAR
QUARKS
ROTATION
title_short Quark Deconfinement in Rotating Neutron Stars
title_full Quark Deconfinement in Rotating Neutron Stars
title_fullStr Quark Deconfinement in Rotating Neutron Stars
title_full_unstemmed Quark Deconfinement in Rotating Neutron Stars
title_sort Quark Deconfinement in Rotating Neutron Stars
dc.creator.none.fl_str_mv Mellinger, Richard
Weber, Fridolin
Spinella, William
Contrera, Gustavo Aníbal Gabriel
Orsaria, Milva Gabriela
author Mellinger, Richard
author_facet Mellinger, Richard
Weber, Fridolin
Spinella, William
Contrera, Gustavo Aníbal Gabriel
Orsaria, Milva Gabriela
author_role author
author2 Weber, Fridolin
Spinella, William
Contrera, Gustavo Aníbal Gabriel
Orsaria, Milva Gabriela
author2_role author
author
author
author
dc.subject.none.fl_str_mv DECONFINEMENT
NEUTRON STAR
NUCLEAR EQUATION OF STATE
PULSAR
QUARKS
ROTATION
topic DECONFINEMENT
NEUTRON STAR
NUCLEAR EQUATION OF STATE
PULSAR
QUARKS
ROTATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this paper, we use a three flavor non-local Nambu-Jona-Lasinio (NJL) model, an improved effective model of Quantum Chromodynamics (QCD) at low energies, to investigate the existence of deconfined quarks in the cores of neutron stars. Particular emphasis is put on the possible existence of quark matter in the cores of rotating neutron stars (pulsars). In contrast to non-rotating neutron stars, whose particle compositions do not change with time (are frozen in), the type and structure of the matter in the cores of rotating neutron stars depends on the spin frequencies of these stars, which opens up a possible new window on the nature of matter deep in the cores of neutron stars. Our study shows that, depending on mass and rotational frequency, up to around 8% of the mass of a massive neutron star may be in the mixed quark-hadron phase, if the phase transition is treated as a Gibbs transition. We also find that the gravitational mass at which quark deconfinement occurs in rotating neutron stars varies quadratically with spin frequency, which can be fitted by a simple formula.
Fil: Mellinger, Richard. San Diego State University; Estados Unidos
Fil: Weber, Fridolin. San Diego State University; Estados Unidos. University of California; Estados Unidos
Fil: Spinella, William. San Diego State University; Estados Unidos
Fil: Contrera, Gustavo Aníbal Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Orsaria, Milva Gabriela. San Diego State University; Estados Unidos. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
description In this paper, we use a three flavor non-local Nambu-Jona-Lasinio (NJL) model, an improved effective model of Quantum Chromodynamics (QCD) at low energies, to investigate the existence of deconfined quarks in the cores of neutron stars. Particular emphasis is put on the possible existence of quark matter in the cores of rotating neutron stars (pulsars). In contrast to non-rotating neutron stars, whose particle compositions do not change with time (are frozen in), the type and structure of the matter in the cores of rotating neutron stars depends on the spin frequencies of these stars, which opens up a possible new window on the nature of matter deep in the cores of neutron stars. Our study shows that, depending on mass and rotational frequency, up to around 8% of the mass of a massive neutron star may be in the mixed quark-hadron phase, if the phase transition is treated as a Gibbs transition. We also find that the gravitational mass at which quark deconfinement occurs in rotating neutron stars varies quadratically with spin frequency, which can be fitted by a simple formula.
publishDate 2017
dc.date.none.fl_str_mv 2017-03
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/11336/55236
Mellinger, Richard; Weber, Fridolin; Spinella, William; Contrera, Gustavo Aníbal Gabriel; Orsaria, Milva Gabriela; Quark Deconfinement in Rotating Neutron Stars; MDPI Multidisciplinary Digital Publishing Institute; Universe; 3; 1; 3-2017; 1-15
2218-1997
CONICET Digital
CONICET
url http://hdl.handle.net/11336/55236
identifier_str_mv Mellinger, Richard; Weber, Fridolin; Spinella, William; Contrera, Gustavo Aníbal Gabriel; Orsaria, Milva Gabriela; Quark Deconfinement in Rotating Neutron Stars; MDPI Multidisciplinary Digital Publishing Institute; Universe; 3; 1; 3-2017; 1-15
2218-1997
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.3390/universe3010005
info:eu-repo/semantics/altIdentifier/url/http://www.mdpi.com/2218-1997/3/1/5
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
application/pdf
dc.publisher.none.fl_str_mv MDPI Multidisciplinary Digital Publishing Institute
publisher.none.fl_str_mv MDPI Multidisciplinary Digital Publishing Institute
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
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score 13.22299

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