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dc.date.accessioned 2019-09-27T15:25:10Z
dc.date.available 2019-09-27T15:25:10Z
dc.date.issued 2017
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/82203
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 thematter 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. en
dc.language en es
dc.subject rotation es
dc.subject quarks es
dc.subject deconfinement es
dc.subject neutron star es
dc.subject pulsar es
dc.subject nuclear equation of state es
dc.title Quark Deconfinement in Rotating Neutron Stars en
dc.type Articulo es
sedici.identifier.other https://doi.org/10.3390/universe3010005 es
sedici.identifier.issn 2218-1997 es
sedici.creator.person Mellinger, Richard D. es
sedici.creator.person Weber, Fridolin es
sedici.creator.person Spinella, William es
sedici.creator.person Contrera, Gustavo Aníbal es
sedici.creator.person Orsaria, Milva Gabriela es
sedici.subject.materias Astronomía es
sedici.description.fulltext true es
mods.originInfo.place Facultad de Ciencias Astronómicas y Geofísicas es
mods.originInfo.place Instituto de Física La Plata es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution 4.0 International (CC BY 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Universe es
sedici.relation.journalVolumeAndIssue vol. 3, no. 1 es

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Creative Commons Attribution 4.0 International (CC BY 4.0) Except where otherwise noted, this item's license is described as Creative Commons Attribution 4.0 International (CC BY 4.0)