Effects of Hadron-Quark Phase Transitions in Hybrid Stars within the NJL Model

We study local and non-local Polyakov Nambu-Jona-Lasinio models and analyze their respective phase transition diagram. We construct hybrid stars using the zero temperature limit of the local and non-local versions of Nambu-Jona-Lasinio model for quark matter and the modern GM1(L) parametrization of...

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Autores principales: Ranea Sandoval, Ignacio Francisco, Orsaria, Milva Gabriela, Malfatti, Germán, Curin, Daniela, Mariani, Mauro, Contrera, Gustavo Aníbal, Guilera, Octavio Miguel
Formato: Articulo
Lenguaje:Inglés
Publicado: 2019
Materias:
Ciencias Astronómicas
NJL model
quark matter
hybrid stars
stellar oscillations
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/81108
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-81108
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
NJL model
quark matter
hybrid stars
stellar oscillations
spellingShingle Ciencias Astronómicas
NJL model
quark matter
hybrid stars
stellar oscillations
Ranea Sandoval, Ignacio Francisco
Orsaria, Milva Gabriela
Malfatti, Germán
Curin, Daniela
Mariani, Mauro
Contrera, Gustavo Aníbal
Guilera, Octavio Miguel
Effects of Hadron-Quark Phase Transitions in Hybrid Stars within the NJL Model
topic_facet Ciencias Astronómicas
NJL model
quark matter
hybrid stars
stellar oscillations
description We study local and non-local Polyakov Nambu-Jona-Lasinio models and analyze their respective phase transition diagram. We construct hybrid stars using the zero temperature limit of the local and non-local versions of Nambu-Jona-Lasinio model for quark matter and the modern GM1(L) parametrization of the non-linear relativistic mean field model for hadronic matter. We compare our models with data from PSR J1614-2230 and PSR J0343+0432 and also from GW170817 and its electromagnetic counterpart GRB170817A and AT2017gfo. We study observational signatures of the appearance of a mixed phase as a result of modeling a phase transition that mimics the Gibbs formalism and compare the results with the sharp first-order phase transition obtained using the Maxwell construction. We also study in detail the g-mode associated with discontinuities in the equation of state, and calculate non-radial oscillation modes using relativistic Cowling approximation.
format Articulo
Articulo
author Ranea Sandoval, Ignacio Francisco
Orsaria, Milva Gabriela
Malfatti, Germán
Curin, Daniela
Mariani, Mauro
Contrera, Gustavo Aníbal
Guilera, Octavio Miguel
author_facet Ranea Sandoval, Ignacio Francisco
Orsaria, Milva Gabriela
Malfatti, Germán
Curin, Daniela
Mariani, Mauro
Contrera, Gustavo Aníbal
Guilera, Octavio Miguel
author_sort Ranea Sandoval, Ignacio Francisco
title Effects of Hadron-Quark Phase Transitions in Hybrid Stars within the NJL Model
title_short Effects of Hadron-Quark Phase Transitions in Hybrid Stars within the NJL Model
title_full Effects of Hadron-Quark Phase Transitions in Hybrid Stars within the NJL Model
title_fullStr Effects of Hadron-Quark Phase Transitions in Hybrid Stars within the NJL Model
title_full_unstemmed Effects of Hadron-Quark Phase Transitions in Hybrid Stars within the NJL Model
title_sort effects of hadron-quark phase transitions in hybrid stars within the njl model
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/81108
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