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相关论文: Dark particle mass effects on neutron star propert…

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A relativistic mean field hadronic model with a dark matter (DM) particle coupled to nucleons including short-range correlations (SRC) is applied to study neutron stars (NS). The lightest neutralino is chosen as the dark particle candidate,…

核理论 · 物理学 2022-01-31 O. Lourenço , T. Frederico , M. Dutra

In this work we study the outcomes related to dimensionless tidal deformability $(\Lambda)$ obtained through a relativistic mean-field (RMF) hadronic model including short-range correlations (SRC) and dark matter (DM) content [Phys. Rev. D…

核理论 · 物理学 2022-08-15 O. Lourenço , C. H. Lenzi , T. Frederico , M. Dutra

We investigate the effects of dark matter (DM) on neutron star (NS) properties using the neutron decay anomaly model within the relativistic mean-field (RMF) framework. Three nucleonic models (HCD0-HCD2) are developed, satisfying…

高能天体物理现象 · 物理学 2025-05-15 H. C. Das , G. F. Burgio

This thesis explores the effects of dark matter (DM) on neutron stars (NSs) using the relativistic mean-field (RMF) model. The effects of DM on NS properties, including the mass-radius relation, the moment of inertia, and tidal…

核理论 · 物理学 2023-05-04 H. C. Das

We investigate the structural and observable impacts of dark matter (DM) on neutron stars using a combined equation of state that integrates the relativistic mean field (RMF) model for baryonic matter with a variable density profile for DM,…

高能天体物理现象 · 物理学 2025-01-14 Ankit Kumar , Hajime Sotani

We investigate the impact of dark matter on neutron star properties using the relativistic mean-field theory. By incorporating the dark matter model, we explore how dark matter parameters, specifically dark matter mass and Fermi momentum,…

高能天体物理现象 · 物理学 2024-08-29 Ankit Kumar , Hajime Sotani

We investigate the influence of ideal Fermi gas dark matter on the observable properties of neutron stars (NSs). Our analysis considers dark matter (DM) particle masses ($\mu$) ranging from $0.2$ GeV to $1$ GeV and various DM mass fractions…

广义相对论与量子宇宙学 · 物理学 2026-03-24 Monmoy Molla , Masum Murshid , Mehedi Kalam

We studied the possible presence of dark matter (DM) in neutron stars (NSs) and the structural properties of the DM admixed NSs (DMANSs) in one of our recent works \cite{Guha:2024pnn}. The feeble interaction between the fermionic DM…

高能物理 - 唯象学 · 物理学 2024-11-14 Debashree Sen , Atanu Guha

In this work, we investigate how short-range correlations affect relativistic hadronic models at high densities, with direct consequences for the structure of neutron stars, both with and without dark matter content. Two versions of the…

核理论 · 物理学 2026-04-21 Odilon Lourenço , Everson H. Rodrigues , Carline Biesdorf , Mariana Dutra

Relativistic mean-field models (RMF) based on the exchange of $\sigma$, $\omega$, and $\rho$ mesons including non-linear nucleon-$\sigma$ couplings and density-dependent $\rho$ coupling, are considered. A large set of models is generated…

核理论 · 物理学 2025-04-01 Luca Passarella , Jerome Margueron , Giuseppe Pagliara

The neutron star properties are generally determined by the equation of state of $\beta$-equilibrated dense matter. In this work, we consider the interaction of fermionic dark matter (DM) particles with the nucleons via Higgs exchange and…

高能天体物理现象 · 物理学 2022-01-19 H. C. Das , Ankit Kumar , Bharat Kumar , S. K. Patra

We calculate crustal properties of neutron stars, namely, mass ($M_{\rm crust}$), radius ($R_{\rm crust}$) and fraction of moment of inertia ($\Delta I/I$) from parametrizations of hadronic relativistic mean-field (RMF) model consistent…

核理论 · 物理学 2021-10-05 M. Dutra , C. H. Lenzi , W. de Paula , O. Lourenço

We investigate the effects of dark matter (DM) on the nuclear equation of state (EoS) and neutron star structure, in the relativistic mean field theory, both in the absence and presence of a crust. The $\sigma-\omega$ model is modified by…

核理论 · 物理学 2023-02-22 Adrian G. Abac , Christopher C. Bernido , Jose Perico H. Esguerra

We study the interaction between dark matter (DM) and highly magnetized neutron stars (NSs), focusing on how DM particle mass, mass fraction, and magnetic field (MF) strength affect NS structure and stability. We consider self-interacting,…

核理论 · 物理学 2025-06-04 Pinku Routaray , Vishal Parmar , H. C. Das , Bharat Kumar , G. F. Burgio , H. -J. Schulze

We study the effects of dark matter on the structural properties of neutron stars. In particular we investigate how the presence of a dark matter component influences the mass-radius relation, the value of the maximum mass of a neutron star…

高能天体物理现象 · 物理学 2025-05-29 Domenico Scordino , Ignazio Bombaci

In recent years, researchers have become increasingly interested in understanding how dark matter affects neutron stars, helping them to better understand complex astrophysical phenomena. In this paper, we delve deeper into this problem by…

高能物理 - 唯象学 · 物理学 2024-01-17 Prashant Thakur , Tuhin Malik , T. K. Jha

Within the relativistic mean-field model, we investigate the properties of dark matter (DM) admixed neutron stars, considering non-rotating objects made of isotropic matter. We adopt the IOPB-I hadronic equation of state (EOS) by assuming…

We investigate the effect of feeble interaction of dark matter (DM) with hadronic matter on the equation of state (EoS) and structural properties of neutron stars (NSs) in static conditions. For the purpose we adopt the effective chiral…

高能物理 - 唯象学 · 物理学 2021-06-08 Debashree Sen , Atanu Guha

For the first time, we analyze the impact of dark matter (DM) on the curvature properties of quarkyonic neutron stars (NS) using a hybrid model based on quarkyonic-effective field theory within the relativistic mean-field (E-RMF) framework.…

高能天体物理现象 · 物理学 2025-01-22 Jeet Amrit Pattnaik , D. Dey , R. N. Panda , M. Bhuyan , S. K. Patra

The effect of dark matter (DM) on $f$-mode oscillations in DM admixed neutron stars (NSs) is investigated in a comprehensive analysis with particular attention to the role of the nuclear equation of state. Hadronic matter is modeled by the…

广义相对论与量子宇宙学 · 物理学 2024-12-23 Swarnim Shirke , Bikram Keshari Pradhan , Debarati Chatterjee , Laura Sagunski , Jürgen Schaffner-Bielich
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