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dc.contributor.author
Mellinger, Richard
dc.contributor.author
Weber, Fridolin
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Spinella, William
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Contrera, Gustavo Aníbal Gabriel
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Orsaria, Milva Gabriela
dc.date.available
2018-08-13T20:46:27Z
dc.date.issued
2017-03
dc.identifier.citation
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
dc.identifier.issn
2218-1997
dc.identifier.uri
http://hdl.handle.net/11336/55236
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
MDPI Multidisciplinary Digital Publishing Institute
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Deconfinement
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Neutron Star
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Nuclear Equation of State
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Pulsar
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Quarks
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Rotation
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Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Quark Deconfinement in Rotating 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
2018-08-13T14:39:39Z
dc.journal.volume
3
dc.journal.number
1
dc.journal.pagination
1-15
dc.journal.pais
Suiza
dc.journal.ciudad
Basilea
dc.description.fil
Fil: Mellinger, Richard. San Diego State University; Estados Unidos
dc.description.fil
Fil: Weber, Fridolin. San Diego State University; Estados Unidos. University of California; Estados Unidos
dc.description.fil
Fil: Spinella, William. 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. 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
dc.description.fil
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
dc.journal.title
Universe
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.3390/universe3010005
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.mdpi.com/2218-1997/3/1/5
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