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Related papers: Rotating Hybrid Stars with Color-Flavor-Locked Qua…

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The stable configurations of non-rotating and rotating hybrid stars composed of colour superconducting quark matter core are constructed using several equations of state (EOSs). We use a set of diverse EOSs for the nuclear matter which…

High Energy Astrophysical Phenomena · Physics 2010-04-06 B. K. Agrawal

We study a family of equations of state for hybrid neutron star matter. The hybrid EOS are obtained by a Maxwell construction of the first-order phase transition between a hadronic phase described by the relativistic density-functional EOS…

Nuclear Theory · Physics 2022-05-02 G. A. Contrera , D. Blaschke , J. P. Carlomagno , A. G. Grunfeld , S. Liebing

We determine parameters of the renormalization group-consistent three-flavor color-superconducting Nambu-Jona-Lasinio (NJL) model that are suited to investigate possible compact-star configurations. Our goal is to provide quark-matter…

High Energy Physics - Phenomenology · Physics 2024-11-20 Hosein Gholami , Ishfaq Ahmad Rather , Marco Hofmann , Michael Buballa , Jürgen Schaffner-Bielich

We study rotating hybrid stars, with a particular emphasis on the effect of a deconfinement phase transition on their properties at high spin. Our analysis is based on a hybrid equation of state (EoS) with a phase transition from…

The stellar configurations of quark stars are studied using perturbative QCD (pQCD) for the equation of state (EoS). The neutron star structures with equation of state obtained from Brussels-Montreal extended Skyrme interaction are also…

Nuclear Theory · Physics 2023-08-01 Joydev Lahiri , D. N. Basu

We study the mass-radius curve of hybrid stars, assuming a single first-order phase transition between nuclear and quark matter, with a sharp interface between the quark matter core and nuclear matter mantle. We use a generic…

Solar and Stellar Astrophysics · Physics 2013-11-13 Mark G. Alford , Sophia Han , Madappa Prakash

We investigate the possible sequels, for the hybrid compact stars consisting of nucleons, hyperons and three flavour color-flavor-locked quarks phase under global neutrality and chemical equilibrium conditions. The hadron equations of state…

Nuclear Theory · Physics 2019-09-18 Suman Thakur , Shashi K Dhiman

We investigate the possible scenario of deconfinement of hyperon rich hadronic matter to quark matter at high densities and the resulting hybrid star (HS) properties are analyzed. In the relativistic mean-field framework, we construct the…

Nuclear Theory · Physics 2018-12-14 Debashree Sen , T. K. Jha

We perform an extensive study of equation of state (EoS) models featuring a phase transition from hadronic to deconfined quark matter in neutron star merger simulations. We employ three different hadronic EoSs, a constant speed of sound…

High Energy Astrophysical Phenomena · Physics 2025-12-12 Sebastian Blacker , Andreas Bauswein

Recent astrophysical mass inferences of compact stars HESS J1731-347 and PSR J0952-0607, with extremely small and large masses respectively, as well as the measurement of the neutron skin of Ca in the CREX experiment challenge and constrain…

High Energy Astrophysical Phenomena · Physics 2024-05-28 Jia Jie Li , Armen Sedrakian , Mark Alford

We construct static and mass-shedding limit sequences of hybrid stars, composed of colour flavour locked (CFL) quark matter core, for a set of equations of state (EOSs). The EOS for the hadronic matter is obtained using appropriately…

High Energy Astrophysical Phenomena · Physics 2009-07-30 B. K. Agrawal , Shashi K. Dhiman

We explore the relevance of the color-flavor locking phase in the equation of state (EoS) built with the Field Correlator Method (FCM) for the description of the quark matter core of hybrid stars. For the hadronic phase, we use the…

Nuclear Theory · Physics 2019-01-31 G. F. Burgio , D. Zappala'

Starting from equations of state of nucleonic and color-superconducting quark matter and assuming a first-order phase transition between these, we construct an equation of state of stellar matter, which contains three phases: a nucleonic…

Solar and Stellar Astrophysics · Physics 2014-06-09 Narine S. Ayvazyan , Giuseppe Colucci , Dirk H. Rischke , Armen Sedrakian

We compute models for the equation of state (EoS) of the matter in the cores of hybrid stars. Hadronic matter is treated in the non-linear relativistic mean-field approximation, and quark matter is modeled by three-flavor local and…

Nuclear Theory · Physics 2017-09-06 G. A. Contrera , M. Orsaria , I. F. Ranea-Sandoval , F. Weber

The phenomena of deconfinement of hadronic matter into quark matter at high density, relevant to hybrid star (HS) cores, is studied in the present work. The effective chiral model describes the pure hadronic phase while for the quark phase…

Nuclear Theory · Physics 2021-09-13 Debashree Sen , Naosad Alam , Gargi Chaudhuri

We discuss a hybrid equation of state (EoS) that fulfills constraints for mass-radius relationships and cooling of compact stars. The quark matter EoS is obtained from a Polyakov-loop Nambu--Jona-Lasinio (PNJL) model with color…

High Energy Physics - Phenomenology · Physics 2010-04-27 D. B. Blaschke , F. Sandin , V. V. Skokov , S. Typel

We present a systematic study of the properties of pure hadronic and hybrid compact stars. The nuclear equation of state (EoS) for beta-equilibrated neutron star matter was obtained using density dependent effective nucleon-nucleon…

Nuclear Theory · Physics 2015-03-19 Abhishek Mishra , Partha Roy Chowdhury , D. N. Basu

The properties of hybrid stars formed by hadronic and quark matter in $\beta$-equilibrium are described by appropriate equations of state (EoS) in the framework of the quark meson coupling (QMC) model. In the present work we include the…

Nuclear Theory · Physics 2009-11-10 P. K. Panda , D. P. Menezes , C. Providência

We present a hybrid equation of state (EoS) for dense matter that satisfies phenomenological constraints from modern compact star (CS) observations which indicate high maximum masses (M = 2 M_sun) and large radii (R> 12 km). The…

Nuclear Theory · Physics 2008-11-26 T. Klahn , D. Blaschke , F. Sandin , C. Fuchs , A. Faessler , H. Grigorian , G. Ropke , J. Trumper

Considering the mass constraint from the resent pulsar observations, we study the properties of neutron stars including hyperons and quarks explicitly. Using the chiral quark-meson coupling model with relativistic Hartree-Fock…

Nuclear Theory · Physics 2017-02-21 Tsuyoshi Miyatsu , Takahide Kambe , Koichi Saito
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