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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/55236
Ver los metadatos del registro completo
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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 Técnicas2025-09-29T09:54:02Zoai: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:34982025-09-29 09:54:02.612CONICET 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 |
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CONICET Digital (CONICET) |
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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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13.070432 |