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相关论文: Exploring the Structural Properties of Anisotropic…

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The possibility of strange stars mixed with dark energy to be one of the candidates for dark energy stars is the main issue of the present study. Our investigation shows that quark matter acts as dark energy after a certain yet unknown…

广义相对论与量子宇宙学 · 物理学 2021-11-15 Theophanes Grammenos , Farook Rahamn , Saibal Ray , Debabrata Deb , Sourav Roy Chowdhury

Compact stars consisting of massless quark matter and fermionic dark matter are studied by solving the Tolman-Oppenheimer-Volkoff equations for two fluids separately. Dark matter is further investigated by incorporating inter-fermionic…

高能天体物理现象 · 物理学 2016-04-27 Payel Mukhopadhyay , Juregen Schaffner-Bielich

We obtain well behaved interior solutions describing hydrostatic equilibrium of anisotropic relativistic stars in scale-dependent gravity, where Newton's constant is allowed to vary with the radial coordinate throughout the star. Assuming…

广义相对论与量子宇宙学 · 物理学 2021-01-26 Grigoris Panotopoulos , Angel Rincon , Ilidio Lopes

Neutron stars, at their cores, are highly dense and, thus, are expected to have a number of exotic processes. This includes a possible phase transition to deconfined quark matter at the core, leading to a hybrid star. The quark matter is…

高能天体物理现象 · 物理学 2026-04-09 Zenia Zuraiq , Banibrata Mukhopadhyay

The properties of dark matter admixed strange quark stars are investigated in the Starobinsky model of modified gravity. For quark matter we assume the MIT bag model, while self-interacting dark matter inside the star is modelled as a…

广义相对论与量子宇宙学 · 物理学 2018-02-14 Ilidio Lopes , Grigoris Panotopoulos

Perturbative Quantum Chromodynamics (pQCD) corrections and color superconductivity predict that strongly interacting matter can reveal new physical phenomena under extreme conditions. Taking into account these interaction effects, we…

广义相对论与量子宇宙学 · 物理学 2023-12-15 Juan M. Z. Pretel , Takol Tangphati , Ayan Banerjee , Anirudh Pradhan

We investigate the impact of $f(R,L_m,T)$ gravity on the internal structure of compact stars, expecting this theory to manifest prominently in the high-density cores of such stars. In this study, we begin by considering the algebraic…

广义相对论与量子宇宙学 · 物理学 2024-12-05 Takol Tangphati , Izzet Sakalli , Ayan Banerjee , Anirudh Pradhan

A deep exploration of the parameter space that relates the interacting equation of state with the bag constant B, and the interaction parameter a, is fundamental for the construction of diverse models of quark stars. In particular, the…

广义相对论与量子宇宙学 · 物理学 2019-11-26 E. A. Becerra-Vergara , Sindy Mojica , F. D. Lora-Clavijo , Alejandro Cruz-Osorio

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

Dark matter is hypothesized to interact with ordinary matter solely through gravity and may be present in compact objects such as strange quark stars. We treat strange quark stars admixed with dark matter as two-fluid systems to investigate…

高能天体物理现象 · 物理学 2025-04-22 Yida Yang , Chen Wu , Ji-Feng Yang

We investigate the influence of dark matter on hybrid stars. Using a two-fluid approach, where normal and dark matter components interact only gravitationally, we explore how dark matter can trigger the appearance of quark matter in neutron…

高能物理 - 唯象学 · 物理学 2025-05-15 Carline Biesdorf , Jürgen Schaffner-Bielich , Laura Tolos

The existence of deconfined quark matter in the superdense interior of neutron stars is a key question that has drawn considerable attention over the past few decades. Quark matter can comprise an arbitrary fraction of the star, from 0 for…

天体物理学 · 物理学 2009-11-11 Prashanth Jaikumar , Sanjay Reddy , Andrew W. Steiner

Quark matter is expected to exist in the interior of compact stellar objects as neutron stars or even the more exotic strange stars, based on the Bodmer-Witten conjecture. Bare strange quark stars and (normal) strange quark-matter stars,…

天体物理学 · 物理学 2011-05-24 A. Perez Martinez , H. Perez Rojas , H. J. Mosquera Cuesta , M. Boligan , M. G. Orsaria

High massive compact stars have been reported recently in the literature, providing strong constraints on the properties of the ultradense matter beyond the saturation nuclear density. In view of these results, the calculations of quark…

高能天体物理现象 · 物理学 2014-07-18 Hilario Rodrigues , Sergio B. Duarte , Jos Carlos T. de Oliveira

We have proposed a model for relativistic compact star with anisotropy and analytically obtained exact spherically symmetric solutions describing the interior of the dense star admitting non-static conformal symmetry. Several features of…

广义相对论与量子宇宙学 · 物理学 2016-04-27 Dibyendu Shee , Farook Rahaman , B. K. Guha , Saibal Ray

The structure and stability of quark stars (QSs) made of interacting quark matter are discussed in this study, taking color superconductivity and perturbative QCD corrections into account. By combining this EoS with the…

高能物理 - 理论 · 物理学 2025-06-12 Takol Tangphati , İzzet Sakallı , Ayan Banerjee , Anirudh Pradhan

It is by now well established that non-relativistic matter in the Universe is dominated by dark matter, the origin and nature of which still remains a mystery. Although the collisionless dark matter paradigm works very well at large…

广义相对论与量子宇宙学 · 物理学 2019-10-28 Grigoris Panotopoulos

We study the impact of asymmetric bosonic dark matter on neutron star properties, including possible changes of tidal deformability, maximum mass, radius, and matter distribution inside the star. The conditions at which dark matter…

高能天体物理现象 · 物理学 2023-01-11 Violetta Sagun , Edoardo Giangrandi , Oleksii Ivanytskyi , Costança Providência , Tim Dietrich

Densities in compact stars may be such that quarks are no longer confined in hadrons, but instead behave as weakly interacting particles. In this regime perturbative calculations are possible. Yet, due to high pressures and an attractive…

高能物理 - 唯象学 · 物理学 2009-03-24 Sjoerd Hardeman

We investigate the properties of anisotropic, spherically symmetric compact stars, especially neutron stars and strange quark stars, made of strongly magnetized matter. The neutron stars are described by SLy equation of state, the strange…

高能天体物理现象 · 物理学 2021-12-08 Debabrata Deb , Banibrata Mukhopadhyay , Fridolin Weber
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