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相关论文: Modeling and Analyzing Stability of Hybrid Stars w…

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In this paper, we develop a model for a static anisotropic hybrid star that includes strange quark matter and hadronic matter. We solve the field equations in the $f(Q)$ gravity framework (where $Q$ is the non-metricity) using the…

广义相对论与量子宇宙学 · 物理学 2026-01-06 M. Sharif , Madiha Ajmal

In this study, we explore several new characteristics of a static anisotropic hybrid star with strange quark matter (SQM) and ordinary baryonic matter (OBM) distribution. Here, we use the MIT bag model equation of state to connect the…

广义相对论与量子宇宙学 · 物理学 2023-07-25 Piyali Bhar , Sneha Pradhan , Adnan Malik , P. K. Sahoo

The purpose of this work is to investigate some interesting features of a static anisotropic relativistic stellar object composed of two different types of fluid distributions typically termed as quark matter (QM) and ordinary baryonic…

广义相对论与量子宇宙学 · 物理学 2024-03-20 Pramit Rej

Hybrid star is the term given to a neutron star with a quark core. Due to a lot of uncertainties in the calculations and compositions of such a high-density system, it is of great interest and a preferred scenario for particle physicists…

广义相对论与量子宇宙学 · 物理学 2023-12-14 Akashdip Karmakar , Pramit Rej

The objective of our current study is to explore novel aspects of a stationary anisotropic relativistic hybrid compact star that consists of quark matter (QM) in its core and ordinary baryonic matter (OBM) in its crust. This study has been…

广义相对论与量子宇宙学 · 物理学 2024-04-24 Adnan Malik , Amjad Hussain , M. Farasat Shamir , Ayesha Almas

This work aims to investigate the behaviour of compact stars in the background of $f(R, T)$ theory of gravity. For current work, we consider the Krori-Barua metric potential i.e., $\nu(r)= Br^2+C$ and $\lambda(r)= Ar^2,$ where, $A, B$ and…

广义相对论与量子宇宙学 · 物理学 2023-04-13 M. Farasat Shamir , Zoya Asghar , Adnan Malik

This paper deals with the theoretical modeling of anisotropic compact stars in the framework of $f(T)$ theory of gravity, where $T$ is torsion scalar. To this end, we have used the exact solutions of Krori and Barua metric to a static…

综合物理 · 物理学 2016-02-16 G. Abbas , Afshan Kanwal , M. Zubair

In this paper, we construct a viable strange star model in the framework of the equation of state, $p_r=\frac{1}{3}(\rho-4B)$, proposed in the MIT bag model, where $B$ is termed as the bag constant. Considering extreme Wood-Saxon-like…

This paper aims to examine the composition of various spherically symmetric star models which are coupled with anisotropic configuration in $f(\mathcal{R},\mathcal{T},\mathcal{Q})$ gravity, where…

广义相对论与量子宇宙学 · 物理学 2024-07-03 M. Sharif , T. Naseer

In the present work, we study about highly dense compact stars which are made of quarks, specially strange quarks, adopting the Krori-Barua (KB)~\cite{Krori1975} metric in the framework of $f(R,T)$ gravity. The equation of state (EOS) of a…

广义相对论与量子宇宙学 · 物理学 2018-12-31 Suparna Biswas , Shounak Ghosh , B. K. Guha , F. Rahaman , Saibal Ray

The purpose of our present work is to investigate some new features of a static anisotropic relativistic hybrid compact star composed of strange quark matter (SQM) in the inner core and normal baryonic matter distribution in the crust. Here…

广义相对论与量子宇宙学 · 物理学 2024-03-21 Pramit Rej , Piyali Bhar

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…

核理论 · 物理学 2023-08-01 Joydev Lahiri , D. N. Basu

This paper studies the structural formation of various spherically symmetric anisotropic configured stars in $f(\mathcal{R},\mathcal{T},\mathcal{Q})$ gravity under the influence of electromagnetic field, where…

广义相对论与量子宇宙学 · 物理学 2023-07-24 M. Sharif , Tayyab Naseer

This study simulates the characteristics of spherically symmetric, anisotropic compact stellar bodies with electrical charge within the framework of the $f(Q)$ theory of gravity. Employing the Krori-Barua metric ansatz (K.D. Krori, J.…

广义相对论与量子宇宙学 · 物理学 2024-11-05 Debadri Bhattacharjee , Pradip Kumar Chattopadhyay

We investigate the question of the nature of compact stars, considering they may be neutron stars or hybrid stars containing a quark core, within the present constraints given by gravitational waves, radio-astronomy, X-ray emissions from…

高能天体物理现象 · 物理学 2024-06-12 H. Güven , J. Margueron , K. Bozkurt , E. Khan

We investigate a simple holographic model for cold and dense deconfined QCD matter consisting of three quark flavors. Varying the single free parameter of the model and utilizing a Chiral Effective Theory equation of state (EoS) for nuclear…

高能天体物理现象 · 物理学 2019-01-30 Eemeli Annala , Christian Ecker , Carlos Hoyos , Niko Jokela , David Rodríguez Fernández , Aleksi Vuorinen

The most recent detections of LIGO/Virgo and NICER have placed strong constraints on neutron stars' properties. In this work, we study neutron stars modeling them as hybrid stars, compact objects with a quark matter core surrounded by…

高能天体物理现象 · 物理学 2022-03-30 Mauro Mariani , Daniela Curin , Milva G. Orsaria , Ignacio F. Ranea-Sandoval

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…

太阳与恒星天体物理 · 物理学 2013-11-13 Mark G. Alford , Sophia Han , Madappa Prakash

The integral parameters of neutron stars are studied taking into account the hadron-quark phase transition, which leads to the formation of a core of quark matter in the central part of a star. The quark matter is described using the local…

核理论 · 物理学 2019-03-08 G. B. Alaverdyan , Yu. L. Vartanyan

This article presents a new model for anisotropic compact stars that are confined to physical dark matter in the background of $f(T)$ teleparallel gravity. The model is based on the equation of state (EoS) of the bag model type and the…

广义相对论与量子宇宙学 · 物理学 2024-08-06 Samprity Das , Prabir Rudra , Surajit Chattopadhyay
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