Phases of Hadron-Quark Matter in (Proto) Neutron Stars
In the first part of this paper, we investigate the possible existence of a structured hadron-quark mixed phase in the cores of neutron stars. This phase, referred to as the hadron-quark pasta phase, consists of spherical blob, rod, and slab rare phase geometries. Particular emphasis is given to mod...
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| Autores principales: | , , , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
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2019
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/125610 https://www.mdpi.com/2218-1997/5/7/169 |
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I19-R120-10915-125610 |
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dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Astronómicas quark matter hadronic matter quark deconfinement neutron star matter nuclear equation of state phase transition |
| spellingShingle |
Ciencias Astronómicas quark matter hadronic matter quark deconfinement neutron star matter nuclear equation of state phase transition Weber, Fridolin Farrell, Delaney Spinella, William Malfatti, Germán Orsaria, Milva Gabriela Contrera, Gustavo Aníbal Maloney, Ian Phases of Hadron-Quark Matter in (Proto) Neutron Stars |
| topic_facet |
Ciencias Astronómicas quark matter hadronic matter quark deconfinement neutron star matter nuclear equation of state phase transition |
| description |
In the first part of this paper, we investigate the possible existence of a structured hadron-quark mixed phase in the cores of neutron stars. This phase, referred to as the hadron-quark pasta phase, consists of spherical blob, rod, and slab rare phase geometries. Particular emphasis is given to modeling the size of this phase in rotating neutron stars. We use the relativistic mean-field theory to model hadronic matter and the non-local three-flavor Nambu–Jona-Lasinio model to describe quark matter. Based on these models, the hadron-quark pasta phase exists only in very massive neutron stars, whose rotational frequencies are less than around 300 Hz. All other stars are not dense enough to trigger quark deconfinement in their cores. Part two of the paper deals with the quark-hadron composition of hot (proto) neutron star matter. To this end we use a local three-flavor Polyakov–Nambu–Jona-Lasinio model which includes the ’t Hooft (quark flavor mixing) term. It is found that this term leads to non-negligible changes in the particle composition of (proto) neutron stars made of hadron-quark matter. |
| format |
Articulo Articulo |
| author |
Weber, Fridolin Farrell, Delaney Spinella, William Malfatti, Germán Orsaria, Milva Gabriela Contrera, Gustavo Aníbal Maloney, Ian |
| author_facet |
Weber, Fridolin Farrell, Delaney Spinella, William Malfatti, Germán Orsaria, Milva Gabriela Contrera, Gustavo Aníbal Maloney, Ian |
| author_sort |
Weber, Fridolin |
| title |
Phases of Hadron-Quark Matter in (Proto) Neutron Stars |
| title_short |
Phases of Hadron-Quark Matter in (Proto) Neutron Stars |
| title_full |
Phases of Hadron-Quark Matter in (Proto) Neutron Stars |
| title_fullStr |
Phases of Hadron-Quark Matter in (Proto) Neutron Stars |
| title_full_unstemmed |
Phases of Hadron-Quark Matter in (Proto) Neutron Stars |
| title_sort |
phases of hadron-quark matter in (proto) neutron stars |
| publishDate |
2019 |
| url |
http://sedici.unlp.edu.ar/handle/10915/125610 https://www.mdpi.com/2218-1997/5/7/169 |
| work_keys_str_mv |
AT weberfridolin phasesofhadronquarkmatterinprotoneutronstars AT farrelldelaney phasesofhadronquarkmatterinprotoneutronstars AT spinellawilliam phasesofhadronquarkmatterinprotoneutronstars AT malfattigerman phasesofhadronquarkmatterinprotoneutronstars AT orsariamilvagabriela phasesofhadronquarkmatterinprotoneutronstars AT contreragustavoanibal phasesofhadronquarkmatterinprotoneutronstars AT maloneyian phasesofhadronquarkmatterinprotoneutronstars |
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Repositorios |
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1764820451940368387 |